Entry &amp; start system (entry function)

An LF band request signal is output every 0.25 seconds, which prompts each electrical key antenna (exterior antenna) to create a detection area. Each front door outer handle ASSY (electrical key antenna) creates an approximately 0.7 m wide detection area.

Waveform or output value

Pulse generation (D41-12 (CLG1) - D48-11 (GND)*)

)

(2) Operation 2

Operation	Carrying the electrical key transmitter SUB-ASSY with you, stand 0.7 m away from the driver’s door. NOTE: If the electrical key transmitter SUB-ASSY is inside the detection area, and if the key ID transmitted to the electrical key transmitter SUB-ASSY matches that stored in the collation ECM (smart key ECM ASSY), the system enters unlock standby mode. If you touch the unlock sensor with your hand when the system is in unlock standby mode, the door unlocks. Signal transmission: Collation ECM (smart key ECM ASSY) → front door handle ASSY (electrical key antenna) → electrical key transmitter SUB-ASSY → door control receiver → collation ECM (smart key ECM ASSY) → body ECM
Expected vehicle behavior	The LED on the electrical key transmitter SUB-ASSY blinks. If the LED does not blink, one of the parts listed in the table below might be faulty.
Waveform or output value	·Pulse generation (D41-12 (CLG1) - D48-11 (GND)) ·Pulse generation (D40-17 (RDAS) - D48-11 (GND)) ·Pulse generation (D40-19 (RSSI) - D48-11 (GND)*)

)

Possible cause	Diagnosis
Electrical key transmitter SUB-ASSY	·The key ID code transmitted by the electrical key transmitter SUB-ASSY does not match the one stored in the collation ECM (smart key ECM ASSY). Check the operation using another electrical key transmitter SUB-ASSY. ·If the LED on the electrical key transmitter SUB-ASSY does not blink in the 0.7 m (2.3 feet) wide area beside the driver’s door, perform the following: ·Check the operation by pressing the lock/unlock button on the electrical key transmitter SUB-ASSY. If the door can lock/unlock, it means that a detection area has not been created. If this is the case, the problem is located in parts other than the electrical key transmitter SUB-ASSY or the door control receiver. ·If the electrical key transmitter SUB-ASSY is faulty, you can neither start the engine nor change the power mode to ACC ON or IG ON. Normally, if you move the shift lever in P1 and press the engine switch using the electrical key transmitter SUB-ASSY from the driver’s seat without depressing the brake pedal1 or the clutch pedal2, the smart key indicator on the combination meter ASSY blinks green. If the door does not open, use the mechanical key integrated into the electrical key transmitter SUB-ASSY to open the door. ·1: With automatic transmission ·*2: for manual transmission NOTE: Before replacing the electrical key transmitter SUB-ASSY, check if the transmitter battery is not drained.
The transmitter battery is drained.	·Hold down the lock switch on the electrical key transmitter SUB-ASSY for 5 seconds and check how many times the LED blinks. If the LED does not blink, or blinks only once or twice, the transmitter battery might be drained. If the LED does not blink at all, the electrical key transmitter SUB-ASSY might be faulty. ·If the transmitter battery voltage drops to 2.1 V or less before the electrical key transmitter SUB-ASSY starts transmitting a signal, [Yes] is displayed for [Key Low Battery] (an item under [Current Data Display & Save]). ·If the transmitter battery voltage drops to 2.0 or less, you cannot perform any operation. NOTE: In low temperature environment, output from the electrical key transmitter SUB-ASSY decreases. ·If the transmitter battery is drained, you can neither start the engine nor change the power mode to ACC ON or IG ON. To forcibly start the engine under this condition, place the electrical key transmitter SUB-ASSY over the engine switch. ·Identify the type of the transmitter battery and check if it is installed properly.
External radio waves	·If a problem occurs only in certain places or at certain times, it is likely the effect of radio wave interference. ·If the electrical key transmitter SUB-ASSY is faulty, it is probably due to the following reasons: the transmitter battery is drained; an electrical key transmitter SUB-ASSY of another vehicle is used, or; the electrical key transmitter SUB-ASSY is exposed to external radio waves. For the following [Current Data Display & Save] items, [Yes] may be displayed: [Unmatched Vehicle-ID], [No Response], [Unmatch Code or Form], or [ID Code Difference(Resp)]
Collation ECM (smart key ECM ASSY)	-
Front door outer handle ASSY	A detection area is not properly created outside the vehicle. ·If the electrical key transmitter SUB-ASSY does not blink when it is located 0.7 m away from the driver’s side front door outer handle ASSY but blinks when it is located 0.7 m away from the passenger’s side front door outer handle ASSY, the driver’s side front door outer handle ASSY might be faulty. ·Even when a detection area is not properly created outside the vehicle, you can start the engine by turning the engine switch ON (ACC). ·By using the SSM3, you can check if a detection area has been created outside the vehicle. (Refer to ) ·Even when a detection area is not properly created outside the vehicle, you can unlock a door by pressing the unlock button on the electrical key transmitter SUB-ASSY.
Door control receiver	·If the door control receiver is faulty, you cannot lock and unlock the doors by a touch sensor operation. ·If the door control receiver is faulty, you cannot lock and unlock the doors by a wireless unlock operation. ·If the door control receiver is faulty, you can neither start the engine nor change the power mode to IG ON or ACC ON unless you perform an emergency operation. ·By using the SSM3, you can check if a detection area has been created outside the vehicle. (Refer to )
The vehicle battery is discharged.	You can check if the vehicle battery is discharged by operating the horn.
Other	·If the entry function has been cancelled using the customize function, a detection area will not be created. Therefore, the LED on the electrical key transmitter SUB-ASSY does not blink even when you move the electrical key transmitter SUB-ASSY towards the front door outer handle ASSY. ·With the entry & start system, leaving the electrical key transmitter SUB-ASSY in a detection area created outside a vehicle door could cause the transmitter battery to become discharged. Therefore, if the electrical key transmitter SUB-ASSY is left in this state for 10 minutes or longer, the entry & start system automatically disables the detection area outside the vehicle where the electrical key transmitter SUB-ASSY is located. ·If you inadvertently leave the electrical key transmitter SUB-ASSY inside the vehicle, and then use another electrical key transmitter SUB-ASSY to lock a door, the LED on the second electrical key transmitter SUB-ASSY does not blink even when you move it toward a front door outer handle ASSY.

(3) Operation 3

Operation	Carrying the electrical key transmitter SUB-ASSY with you, and making sure that it is inside the detection area created outside the vehicle, touch the unlock sensor on the driver’s door.
Expected vehicle behavior	As the door unlocks, you get an answer-back. If this does not happen, one of the parts listed in the table below might be faulty.
Waveform or output value	·Pulse generation (D41-12 (CLG1) - D48-11 (GND)) ·Tester conditions: Body ECM, instrument panel junction block ASSY

*1: With automatic transmission
*2: for manual transmission
*3: The ID code box is included.

)

Possible cause	Diagnosis
Same failure locations as those shown under Operation 2, for cases in which the LED on the electrical key transmitter SUB-ASSY does not blink	-
Front door outer handle ASSY (unlock sensor)	·If you can unlock the door by touching the passenger’s side unlock sensor carrying the electrical key transmitter SUB-ASSY with you, the driver’s side unlock sensor might be faulty. ·In normal operation, if you touch the unlock sensor, [ON] is displayed for [D-Door Touch Sensor] (an item under [Current Data Display & Save]).
Door lock/unlock function	If you cannot lock/unlock a door by operating the door control switch inside the vehicle, the door lock function might be faulty.

(4) Operation 4

Operation	Get on the vehicle carrying the electrical key transmitter SUB-ASSY with you, close the door, move the shift lever in P1, and then press the engine switch once without depressing the brake pedal1 or the clutch pedal*2.
Expected vehicle behavior	·The smart indicator inside the combination meter ASSY blinks green (blinks slowly), and the engine status changes to ACC ON. ·The steering wheel unlocks. If the smart key indicator does not blink, one of the parts listed in the table below might be faulty. NOTE: If you press the engine switch, the indoor electrical key antenna creates a key detection area inside the vehicle to detect the electrical key transmitter SUB-ASSY inside the vehicle. After receiving a request signal, the electrical key transmitter SUB-ASSY transmits an ID code, and the LED on the electrical key transmitter SUB-ASSY blinks for a short period of time. After the engine switch is pressed, if the key ID transmitted by the electrical key transmitter SUB-ASSY matches the one stored in the collation ECM (smart key ECM ASSY), the ACC relay becomes ON, and the smart key indicator on the combination meter ASSY blinks green (blinks slowly). When the power mode changes, the L code and S code*3 check process completes. The steering wheel is then unlocked, and the immobilizer is disabled. The [Immobiliser] status in [Current Data Display & Save] is changed from [Set] to [Unset]. Signal transmission: Collation ECM (smart key ECM ASSY) → indoor electrical key antenna → electrical key transmitter SUB-ASSY → door control receiver → collation ECM (smart key ECM ASSY). NOTE: A detection area is created inside the vehicle under the following conditions: ·A door is open. ·During approximately 30 seconds following the opening/closing of a door ·The brake pedal is depressed. ·During approximately 30 seconds following the depressing of the brake pedal ·Immediately after the engine switch is pressed
Waveform or output value	·Pulse generation (D40-17 (RDAS) - D48-11 (GND)) ·Pulse generation (D41-3 (CLG5) - D48-11 (GND)) ·Pulse generation (D59-3 (SLR+) - D59-1 (GND)*)

*1: The ID code box is included.
*2: With automatic transmission

)

Possible cause	Diagnosis
Collation ECM (smart key ECM ASSY)	-
External radio waves	·If the failure occurs in certain locations or during certain periods of time, it may be due to interference from external radio waves. ·If interference from external radio waves is suspected inside the vehicle, remove all connectors from the devices that are not part of the standard equipment, or disconnect or remove electrical devices, to check for the presence of noise.
Indoor electrical key antenna ASSY that creates a detection area inside the vehicle	·If a detection area is not properly created inside the vehicle you can neither start the engine nor change the power mode to ACC ON or IG ON. In the event of an emergency, however, you can forcibly start the engine by placing the electrical key transmitter SUB-ASSY over the engine switch. ·Using the SSM3, activate keyless access system check to forcibly create a detection area inside the vehicle. Then, place the electrical key transmitter SUB-ASSY inside the detection area. Short beeps sound. (Refer to )
Engine switch	In normal operation, if you press the engine switch, [ON] is displayed for [Start Switch1] and [Start Switch2] (items under [Current Data Display & Save]).
ID code box (immobilizer code ECM) *1	[OK] must be displayed for [S Code Check] (an item under [Current Data Display & Save]). If [OK] is displayed for [S Code Check], it means that the collation ECM (smart key ECM ASSY) code matches the ID code box (immobilizer code ECM) code.
Neutral start switch ASSY *2	In normal operation, if you move the shift lever in P, [ON] is displayed for [Neutral SW/Clutch SW] (an item under [Current Data Display & Save]).
Steering lock ECM (steering lock actuator ASSY)	·If [OK] is displayed for [L Code Check] (an item under [Current Data Display & Save]) when the power mode is ACC ON, power is supplied to the steering motor for approximately 10 seconds. The ECM then sends an unlock signal to the steering motor. At this moment, the result for [Unlock Request Receive] (an item under [Current Data Display & Save]) temporarily changes from [NG] to [OK]. As the steering wheel unlocks, the ECM receives the unlock signal from the steering motor, and the result displayed for [Steering Unlock] (an item under [Current Data Display & Save]) changes from [Unset] to [Set]. ·With ID code box ·In order for the steering wheel to be unlocked, [OK] must be displayed for [L Code Check] under [Current Data Display & Save]. This means that the ID code stored in the steering lock ECM (steering lock actuator ASSY) and [S Code Check] (ID code box (immobilizer code ECM)) must match the collation ECM (smart key ECM ASSY) and the ID code box (immobilizer code ECM). ·Without ID code box ·In order for the steering wheel to be unlocked, [OK] must be displayed for [L Code Check] under [Current Data Display & Save] This means that the ID code stored in the steering lock ECM (steering lock actuator ASSY) must match the one stored in the collation ECM (smart key ECM ASSY).

The electrical key transmitter SUB-ASSY, the transmitter battery, and the vehicle battery should already have been inspected during the previous operation procedure. If not, inspect them now.

(5) Operation 5

Operation	Carrying the electrical key transmitter SUB-ASSY with you, move the shift lever in P1 and depress the brake pedal1 or the clutch pedal*2.
Expected vehicle behavior	The smart key indicator on the combination meter ASSY lights up green. If the smart key indicator does not light up, one of the parts listed in the table below might be faulty.

*1: With automatic transmission
*2: for manual transmission

Possible cause	Diagnosis
Stop light switch ASSY*1	If the brake pedal is depressed, [ON] is displayed for [Stop Light Switch 1] (an item under [Current Data Display & Save]).
Clutch start switch ASSY*2	If the clutch pedal is depressed, [ON] is displayed for [Neutral SW/Clutch SW] (an item under [Current Data Display & Save]).
Collation ECM (smart key ECM ASSY)	Start the ECM terminal arrangement. (Refer to )

*1: With automatic transmission
*2: for manual transmission

(6) Operation 6

Operation	Get on the vehicle carrying the electrical key transmitter SUB-ASSY with you, move the shift lever in P1, depress and hold down the brake pedal1 or the clutch pedal*2, and then press the engine switch.
Expected vehicle behavior	The engine starts. If the engine does not start, one of the parts listed in the table below might be faulty. NOTE: If you press the engine switch with the steering wheel unlocked, a starter drive request signal is output from the starter drive request output terminal of the collation ECM (smart key ECM ASSY). 12 V is then supplied to the starter relay via the starter relay terminal of the ECM.]

*1: With automatic transmission
*2: for manual transmission

Possible cause	Diagnosis
Steering lock system	In normal operation, when the steering wheel is unlocked, [ON] is displayed for [Steering Unlock Switch] (an item under [Current Data Display & Save]).
Collation ECM (smart key ECM ASSY)	[Starter Request Signal] (an item under [Current Data Display & Save]) indicates the engine start request signal output. When [ON] is displayed for this item, it means that the collation ECM (smart key ECM ASSY) is outputting an engine start request signal to the ECM.
ECM	[Starter SW] (an item under [Current Data Display & Save]) indicates the starter drive command. If [ON] is displayed for this item, 12V is output from the starter relay terminal, which is then applied to the starter relay.
Starter relay	[Starter Signal] (an item under [Current Data Display & Save]) indicates the electrical potential of the starter relay terminal of the ECM. It tells you whether or not voltage is actually applied to the starter relay.
Starter	-
The vehicle battery is discharged.	You can check if the vehicle battery is discharged by simply sounding the horn.

(7) Operation 7

Operation	Press the engine switch.
Expected vehicle behavior	The vehicle turns to IG OFF and the engine stops.

(8) Operation 8

Operation	Open a door.
Expected vehicle behavior	The steering wheel locks. If this does not happen, one of the parts listed in the table below might be faulty.

Possible cause	Diagnosis
Steering lock system	-
Door courtesy light switch ASSY	If any one of the doors opens, [OFF] is displayed for [D Door Courtesy SW] (an item under [Current Data Display & Save]).

(9) Operation 9

Operation	Carrying the electrical key transmitter SUB-ASSY with you, touch the lock sensor on the driver’s door outer handle.
Expected vehicle behavior	As the door locks, you get an answer-back.

5. Vehicle battery conservation function

(1) When the entry & start system (entry function) is enabled, the vehicle performs a key detection operation every 0.25 seconds. If the vehicle is left in this state for a prolonged period of time, the battery can become completely drained. The following mechanisms are provided to help reduce battery drainage:

(a) If the engine is not started for 5 or more days, periodic signal transmission from the electrical key antenna stops. In this event, you can unlock a door by touching the unlock sensor on front door outer handle ASSY.

(b) If the engine is not started for 14 or more days, the lock/unlock sensor of the passenger’s side front door outer handle ASSY is disabled. In this event, you need to use the unlock sensor on the driver’s side front door outer handle ASSY to unlock a door.

(c) If the electrical key transmitter SUB-ASSY is left inside the detection area created outside the vehicle for 10 minutes or more, the exterior electrical key antenna that is detecting the presence of the electrical key transmitter SUB-ASSY is deactivated.

(2) To restore the entry & start system, perform the following:

(a) Holding the key, lock and then unlock the door by touching the lock/unlock sensor on the driver’s side front door outer handle ASSY.

(b) Once this operation is performed, all doors can be opened and closed.

(d) Lock and then unlock the door by inserting the mechanical key into the driver’s door key cylinder. (For EK and ER only)

6. Warning function

(1) Alarm that goes off when you attempt to get off the vehicle with the shift lever in a position other than P (power deactivation notification) (applicable to automatic transmission only)

(a) Situation A: An attempt to get off the vehicle was detected (the driver’s door opens when the shift lever is in a position other than P).

Item	Contents
Purpose of the warning	·To prevent the vehicle from suddenly moving forward ·To prevent the vehicle from being stolen ·To prevent the vehicle from moving (to prevent the vehicle from starting moving down a slope or an inclined plane without a driver inside the vehicle)
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is ACC ON or IG ON. ·The shift lever is in a position other than P. ·Driver’s door is open. ·The vehicle is stopped.
Description	·The combination meter ASSY buzzer gives a continuous beeping sound.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·The power mode is IG OFF. ·The shift lever is moved to P. ·Driver’s door is closed ·The vehicle is running.

(b) Situation B: Under situation A, the driver gets off the vehicle carrying the electrical key transmitter SUB-ASSY, closes the driver’s door, and attempts to walk away from the vehicle.

Item	Contents
Purpose of the warning	·To prevent the vehicle from suddenly moving forward ·To prevent the vehicle from being stolen ·To prevent the vehicle from moving (to prevent the vehicle from starting moving down a slope or an inclined plane without a driver inside the vehicle)
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is ACC ON or IG ON. ·The shift lever is in a position other than P. ·The driver’s door is opened and then closed. ·The electrical key transmitter SUB-ASSY is not inside the vehicle (a matching code is not detected inside the vehicle). ·The vehicle is stopped.
Description	·The combination meter ASSY buzzer gives a continuous beeping sound. ·The smart key indicator blinks yellow. ·The wireless buzzer gives a continuous beeping sound.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·The power mode changes to IG OFF. ·The shift lever is moved to P. ·The electrical key transmitter SUB-ASSY is detected inside the vehicle (a matching code is detected inside the vehicle). ·The vehicle is running.

(2) Alarm that goes off when you attempt to get off the vehicle with the shift lever in P (without turning off the power) (key reminder warning)
*: for automatic transmission

(a) Situation A: An attempt is made to open the driver’s door and get off the vehicle with the steering wheel unlocked.

Item	Contents
Purpose of the warning	To prevent the vehicle from being stolen
Warning activation conditions (When all of the conditions for either condition 1 or condition 2 are met)	Condition 1: ·ACC ON ·Driver’s door is open. Condition 2 (1 second): ·The power mode is IG OFF. ·Driver’s door is open. ·The steering wheel is unlocked.
Description	·The combination meter ASSY buzzer gives a continuous beeping sound.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·The power mode changes to IG ON. ·Driver’s door is closed ·The power mode is IG OFF and the steering wheel is locked.

(b) Situation B: Under Condition 1 of Situation A, the driver gets off the vehicle carrying the electrical key transmitter SUB-ASSY, closes the driver’s door, and attempts to walk away from the vehicle.

Item	Contents
Purpose of the warning	To prevent the vehicle from being stolen
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is ACC ON or IG ON. ·The shift lever is in P. ·The driver’s door is opened and then closed. ·The electrical key transmitter SUB-ASSY is not inside the vehicle (a matching code is not detected inside the vehicle). ·The vehicle is stopped.
Description	·The combination meter ASSY buzzer beeps 1 time. ·The wireless buzzer makes 3 short beeping sounds. ·The smart key indicator on the combination meter ASSY blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·The engine switch is off. ·The electrical key transmitter SUB-ASSY is detected inside the vehicle (a matching code is detected inside the vehicle).

(c) Situation C: Under the situation in which the conditions of Situation B are met, the driver closes the door and performs an entry lock operation.

Item	Contents
Purpose of the warning	To prevent the vehicle from being stolen
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is ACC ON or IG ON. ·The shift lever is in P. ·The electrical key transmitter SUB-ASSY is not inside the vehicle (a matching code is not detected inside the vehicle). ·The electrical key transmitter SUB-ASSY is detected outside the vehicle (a matching code is detected outside the vehicle). ·An entry lock operation is performed. ·The vehicle is stopped.
Description	·The combination meter ASSY buzzer beeps once. ·The wireless buzzer gives a continuous beeping sound. ·The smart key indicator blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·10 seconds elapses after the start of warning (only the buzzer stops). ·The power mode is IG OFF. ·The shift lever is in a position other than P. ·The vehicle is running. ·The electrical key transmitter SUB-ASSY is detected inside the vehicle (a matching code is detected inside the vehicle). ·Open one of the doors. ·Close one of the doors.

(3) Warning provided when a fellow passenger brings the electrical key transmitter SUB-ASSY outside the vehicle

(a) A door other than the driver’s door opens, and a fellow passenger attempts to get off the vehicle carrying the key.

Item	Contents
Purpose of the warning	To prevent any situation that might make it impossible to restart the engine
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is ACC ON or IG ON. ·A door other than the driver’s door is opened and then closed. ·The vehicle is stopped. ·The electrical key transmitter SUB-ASSY is not inside the vehicle (a matching code is not detected inside the vehicle).
Description	·The combination meter ASSY buzzer beeps once. ·The wireless buzzer makes 3 short beeping sounds. ·The smart warning light on the combination meter ASSY blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·The engine switch is off. ·The electrical key transmitter SUB-ASSY is detected inside the vehicle (a matching code is detected inside the vehicle).

(4) Warning provided when the key is not inside the detection area

(a) An attempt is made to change the power mode to IG ON or ACC ON, or to start the engine when the key is not detected inside the vehicle.

Item	Contents
Purpose of the warning	To prevent user confusion
Warning activation conditions (The warning is activated when all of these conditions are met).	·The engine immobilizer is enabled. ·The engine switch is touched when the electrical key transmitter SUB-ASSY is not inside the vehicle, or when the key battery is drained (a matching code is not detected inside the vehicle).
Description	·The combination meter ASSY buzzer beeps once. ·The smart warning light on the combination meter ASSY blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·15 seconds elapses after the start of warning. ·With the entry function is cancelled, the electrical key transmitter SUB-ASSY comes into contact with the engine switch when the electrical key transmitter SUB-ASSY is not inside the vehicle or when the key battery is drained (a matching code is detected inside the vehicle).

(5) No key in vehicle alarm signal

(a) The driver starts the vehicle without the key inside the vehicle.

Item	Contents
Purpose of the warning	To prevent any situation that might make it impossible to restart the engine
Warning activation conditions (The warning is activated when all of these conditions are met).	·IG ON ·A fellow passenger moves the key outside the vehicle warning detection area. ·The vehicle is running. ·The electrical key transmitter SUB-ASSY is not inside the vehicle (a matching code is not detected inside the vehicle).
Description	·The combination meter ASSY buzzer beeps for 7 seconds. ·The smart key indicator on the combination meter ASSY blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·The power mode is IG OFF. ·The electrical key transmitter SUB-ASSY is detected inside the vehicle (a matching code is detected inside the vehicle).

(6) Anti-lockout warning

(a) An entry lock operation is performed with the key left inside the vehicle.

Item	Contents
Purpose of the warning	To prevent the vehicle from being stolen
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is IG OFF. ·All doors are closed. ·The electrical key transmitter SUB-ASSY is inside the vehicle (a matching code is detected inside the vehicle). ·The lock sensor is touched (without a door lock operation). ·The vehicle is stopped.
Description	·The wireless buzzer gives a continuous beeping sound.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·10 seconds elapses after the start of warning. ·The power mode is ACC ON or IG ON. ·One of the doors is open. ·A lock operation is performed. (Other than smart door lock)

(7) Door open reminder warning

(a) An entry lock operation is performed when there is a door that is not properly closed.

Item	Contents
Purpose of the warning	To prevent the vehicle from being stolen
Warning activation conditions (The warning is activated when all of these conditions are met).	·The power mode is IG OFF. ·One of the doors (except the one with the touch sensor that the user is currently touching) is open. ·The lock sensor is touched, or the lock switch on the electrical key transmitter SUB-ASSY is pressed. ·The electrical key transmitter SUB-ASSY is detected inside the vehicle (a matching code is detected inside the vehicle).
Description	·The wireless buzzer gives a continuous beeping sound.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·10 seconds elapses after the start of warning. ·The power mode is ACC ON or IG ON. ·All doors are closed. ·A wireless unlock operation is performed. ·An entry unlock operation is performed.

(8) Lockout protection function

(a) An attempt is made to lock a door with the electrical key transmitter SUB-ASSY left inside the vehicle.

Item	Contents
Purpose of the warning	To prevent the vehicle from being stolen
Warning activation conditions (When all of the conditions for either condition 1 or condition 2 are met)	Condition 1: ·A keyless lock operation1 is performed. ·The electrical key transmitter SUB-ASSY is inside the vehicle (a matching code is detected inside the vehicle). ·The vehicle is stopped. Condition 22: ·The power mode is IG OFF. ·All doors are closed and locked. ·A lock operation other than the entry lock operation is performed. ·The electrical key transmitter SUB-ASSY is inside the vehicle (a matching code is detected inside the vehicle).
Description	·The combination meter ASSY buzzer beeps once. ·The wireless buzzer gives a continuous beeping sound.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·10 seconds elapses after the start of warning. ·The power mode is changed. ·One of the doors is open. ·A lock operation is performed. ·The vehicle is running.

·*1: A keyless lock operation refers to the process of locking an open door by operating the door lock knob and then closing the door while pulling the front door outer handle ASSY.
·*2: A double locking system is included.

(9) Key battery low warning

(a) The vehicle is running with the transmitter battery almost drained.

Item	Contents
Purpose of the warning	·Convenient function ·To prevent any situation that might make it impossible to restart the engine
Warning activation conditions (When all of the conditions for either condition 1 or condition 2 are met)	Condition 1: ·The vehicle stops after 20 minutes or longer in the IG ON state. ·The transmitter battery is almost drained. ·The electrical key transmitter SUB-ASSY is inside the vehicle (a matching code is detected inside the vehicle). ·The vehicle is stopped. Condition 2: ·The engine is started in a cold state. ·The transmitter battery is almost drained. ·The electrical key transmitter SUB-ASSY is inside the vehicle (a matching code is detected inside the vehicle). ·The vehicle is stopped. ·A key low battery warning log is present.*
Description	·The combination meter ASSY buzzer beeps once. ·The smart warning light on the combination meter ASSY blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·15 seconds elapses after the start of warning. ·The vehicle is running.

* The “key low battery warning” is logged when the power mode changes to IG OFF after 20 minutes or longer in the IG ON state.

(10) Warning provided when the steering wheel is not unlocked

·The steering wheel does not unlock.
·The shift lever is moved to a position other than P before the steering wheel is unlocked (applicable to automatic transmission only).

Item	Contents
Purpose of the warning	Convenient function
Warning activation conditions	The steering wheel does not unlock.
Description	·The combination meter ASSY buzzer beeps once. ·The smart key indicator on the combination meter ASSY blinks green.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·15 seconds elapses after the start of warning. ·The steering wheel is unlocked.

(11) Entry & start system error warning

(a) After a problem in the clutch switch or problem that can cause a failure in the steering lock ECM is detected, either a failure in the IG drive circuit or a vehicle speed information error is detected.

Item	Contents
Purpose of the warning	A failure is detected.
Warning activation conditions (The warning is deactivated when any one of these conditions is met).	·IG OFF, driver’s door closed → door opened, clutch switch ON for 300 seconds or more (MT vehicles) ·Steering lock actuator ASSY (steering lock ECM) failure ·Collation ECM (smart key ECM ASSY) failure ·Steering lock/unlock position switch failure ·An IG relay output circuit error is detected. ·A vehicle speed error is detected. ·The loss of vehicle speed signal communication is detected.
Description	·The combination meter ASSY buzzer beeps once. ·The smart key indicator on the combination meter ASSY blinks orange.
Warning deactivation conditions (The warning is deactivated when any one of these conditions is met).	·15 seconds elapses after the start of warning. ·Normal state is resumed.

(12) Immobilizer check completion report

(a) The electrical key transmitter SUB-ASSY comes into contact with the engine switch when the battery of the electrical key transmitter SUB-ASSY is drained, when the entry function is cancelled, or when interference from interference waves.

Item	Contents
Purpose of the warning	Convenient function
Warning activation conditions	·The key comes into contact with the engine switch when the key battery is drained or when the entry function is cancelled (a matching code is detected inside the vehicle).
Description	·The combination meter ASSY buzzer makes a short beeping sound.

HOW TO PROCEED WITH TROUBLESHOOTING

·Use these procedures to troubleshoot the entry and start system (for entry function).
·*: Use the SSM3.

1. VEHICLE BROUGHT TO WORKSHOP

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2. CUSTOMER PROBLEM ANALYSIS

·In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred.
·Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases.
·The following 5 items are important points for problem analysis:

What?	Vehicle model, system name
When?	Date, time, occurrence frequency. Does it occur recently or for a long time?
Where?	Does it occur at specified place?
Under what conditions?	Unlock/lock the door, engine switch on (IG), engine start.
How did it happen?	Problem symptoms*

·*: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DTCs.

·If the entry lock/unlock function does not operate for all doors.
·If the entry lock function does not operate.
·If the entry unlock function does not operate.
·If both the entry lock and unlock functions do not operate.
·If the wireless lock and unlock functions do not operate.
·If there is no power even when the engine switch is pressed [does not turn on (ACC)].
·If the engine does not start with the entry ignition function.
·If the outside warning buzzers do not sound.
·Did you try to engine start by put the electrical key direct on the engine switch and press the engine switch on (IG).
·If the interior warning buzzers do not sound.
·If the steering lock does not unlock.
·Any other details concerning the problem.

·If it is supposed that electric wave interference is likely, be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem.

·Specific locations where the system does not operate (such as near TV towers, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc.).
·Specific times when the system does not operate: Whether or not symptoms occurred immediately after purchase or only recently. Whether or not the symptoms occurred when the key was even right by the vehicle (electrical key antenna).
·If the system does not operate only when near specific vehicles (there may be an effect from electric waves from the wireless systems of other vehicles).
·If the system operates intermittently.
·If the key is bundled together with other items.
·If the key is carried together with other electronic devices, such as cell phones, personal computers, portable music players, other electrical keys, etc. (keep the key at least 0.1m {0.33 ft.} away from such items).
·Where the key is being kept when not in use: Whether or not the key being placed within 1m {3.28 ft.} of items such as TVs, DVD recorders, induction cookers, rice cookers, dishwashers, modems, cell phones, personal computers, microwave ovens, desk or floor lamps, cordless telephones, etc.
·If there are electronic devices that transmit electric waves placed in the vehicle.
·When the key battery was last replaced (when the battery is low). The key battery can be checked roughly using the "Key Low Battery" item in the [Current Data Display & Save] (See page

).
·If the customer installed any optional components (theft deterrent devices, wireless fog lights, etc.) to the vehicle.

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3. INSPECT BATTERY VOLTAGE

Standard voltage : 11 to 14 V

(1) If the voltage is below 11V, recharge or replace the battery before proceeding.

NOTE:

A simple method to determine whether the battery is depleted is to operate the horn

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4. VSC System Inspection

(1) Use the SSM3 to check if the VSC system is functioning normally.

NOTE:

·If the certification ECU (smart key ECU assembly) mistakenly receives a vehicle speed signal, communication between the vehicle and the SSM3 fails.
·Be sure to check "Vehicle Speed" displayed on the [Current Data Display & Save] to make sure that the vehicle speed is not abnormal.

>GO TO VSC SYSTEM (See page

Result	Proceed to
No vehicle speed signal is mistakenly received.	A
A vehicle speed signal is mistakenly received.	B

)

A▼

5. Communication inspection of the CAN communication system

(1) Check CAN communication system. (Refer to

)

>Go to “CAN communication system” (“How to troubleshoot”) (refer to

Result	Proceed to
Functioning properly	A
Not functioning properly	B

A▼

6. Communication function inspection of large-scale multiplex communication system for vehicle body [LIN]

(1) Inspect the large-scale multiplex communication system for vehicle body. (Refer to

)

>Go to “large-scale multiplex communication system for vehicle body [LIN]” (Refer to

Result	Proceed to
Functioning properly	A
Not functioning properly	B

)

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7. CHECK FOR DTC*

(1) Recheck for DTCs (See page

). Based on the DTCs output, proceed each system's DTC procedure.

>GO TO STEERING LOCK SYSTEM (refer to

Result	Proceed to
DTC is not output	A
Steering lock system DTC is output	B
Engine immobiliser system DTC is output	C
Entry and start system (for entry function) DTC is output	D

>GO TO ENGINE IMMOBILISER SYSTEM (Refer to

)

>GO TO DIAGNOSTIC TROUBLE CODE CHART (See page

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8. PROBLEM SYMPTOMS TABLE

(1) Refer to Problem Symptoms Table (refer to

)

Result	Proceed to
Fault is not listed in problem symptoms table	A
Fault is listed in problem symptoms table	B

>Go to step 10

9. OVERALL ANALYSIS AND TROUBLESHOOTING*

(1) Operation Check (See page

)

(2) Check [Current Data Display & Save]/[System Operation Check Mode] (See page

(3) Check Terminals of ECU (See page

)

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10. REPAIR OR REPLACE

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11. CHECK FOR DTC*

(1) Clear the DTCs (See page

)

(2) Check for DTCs (See page

)

NOTE:

Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure (See page

>GO TO DIAGNOSTIC TROUBLE CODE CHART (See page

Result	Proceed to
DTC is not output	A
Entry and start system (for entry function) DTC is output	B

A▼

END

OPERATION CHECK

1. Entry & start system (entry function) operation

CAUTION:

Make sure that the entry & start system (entry function) is not disabled before proceeding with this inspection procedure.

(1) Check the entry unlock function (driver’s door and the passenger’s door).

(a) Lock all doors by a wireless lock operation, and holding the electrical key transmitter in your hand, touch the unlock sensor integrated into the back side of the driver’s side front door outer handle ASSY. Check that all the doors are unlocked. (Only the driver’s side is unlocked for EK/ER.)

NOTE:

To perform a wireless lock operation, stand close to the front door outer handle ASSY and press the lock switch on the electrical key transmitter.

(b) Inspect the entry lock detection area. Holding the electrical key transmitter at the same level as the front door outer handle ASSY (approximately 0.8 m (2.62 feet) above ground), stand approximately 0.7 m (2.30 feet) away from the vehicle, as shown in the figure. Check if the LED (red) on the electrical key transmitter SUB-ASSY blinks.

0.7 - 1m

·If the electrical key transmitter SUB-ASSY is inside the detection area, and if the key ID code transmitted from the key matches the one stored in the collation ECM (smart key ECM ASSY), the system enters unlock standby mode.
·If the electrical key transmitter SUB-ASSY is within 0.2 m (0.66 feet) of the front door outer handle ASSY, communication might not be possible.
·Use the same procedure to inspect the front passenger’s door. (For EK/ER, check that all doors are unlocked when you touch the passenger’s side unlock touch sensor.)

(d) Check the unlock response sensitivity. With the system in unlock standby mode, touch the part indicated in the figure and check that the door is unlocked.

If you touch the sensor too quickly or too slowly, the sensor fails to respond and the door does not unlock.

(2) Check the entry lock function (driver’s door and the passenger’s door).

*1	Unlock sensor (back side of the handle)

If you perform a door lock operation when the electrical key transmitter SUB-ASSY is located inside the vehicle but outside the detection area (on the instrument panel, in the glove compartment, or on the floor), the key lock-in prevention function does not kick in, which means that you will end up locking the door with the electrical key transmitter SUB-ASSY left inside the vehicle.

(a) With all doors closed and unlocked, hold the electrical key transmitter SUB-ASSY in your hand and touch the lock sensor on the driver’s side front door outer handle ASSY. Check that all doors are locked.

(b) Inspect the entry lock operating range. Standing approximately 0.3 m (0.98 feet) away from the vehicle, position the electrical key transmitter SUB-ASSY approximately 0.1 m (0.33 feet) below the door glass (or approximately 0.8 m (2.62 feet) above ground), as shown in the figure. Touch the lock sensor and check that all doors are locked.

*a	Approx. 0.3 m

*1	Lock sensor

·If touching the lock sensor does not lock the doors, press the lock sensor with your palm.
·If the electrical key transmitter SUB-ASSY is within 0.2 m (0.66 feet) of the front door outer handle ASSY, communication might not be possible. Furthermore, if you touch the lock sensor with the same hand holding the electrical key transmitter SUB-ASSY, you might fail to lock doors.
·If the key lock-in prevention buzzer beeps, radio waves from the indoor electrical key antenna might be leaking outside of the vehicle.
·Use the same procedure to inspect the passenger’s door.

(3) Inspect the entry trunk open function.

(a) With the trunk closed, operate the unlock switch on the trunk opening switch ASSY. Check that the trunk opens.

(b) Inspect the entry trunk unlock operating range. Stand approximately 0.7 m away from the rear end of the vehicle, holding the electrical key transmitter SUB-ASSY at the same level as the trunk opening switch ASSY, as shown in the figure above. Press the trunk opening switch ASSY and check that the trunk opens.

*1	Unlock switch
*a	Approx. 0.7m

(4) Check the lockout protection function (in the trunk).

(a) Lock all doors and place the electrical key transmitter SUB-ASSY inside the trunk. Check if 1) the key wireless buzzer beeps (for approximately 2 seconds) as you close the trunk, and 2) the trunk opens as you press the trunk opening switch ASSY.

(b) Check the detection area for the lockout protection function. Make sure that the electrical key transmitter SUB-ASSY is facing in the direction shown in the figure. Place the electrical key transmitter SUB-ASSY in either of the 2 positions shown in the figure and check that 1) the key wireless buzzer beeps (for approximately 2 seconds) as you close the trunk, and 2) the trunk opens as you press the trunk opening switch ASSY.

(c) Inspect the lockout protection detection area and the door control receiver for a radio wave leakage. Hold the electrical key transmitter SUB-ASSY at the same level as the trunk, positioning it at the center of the rear end of the vehicle. Make sure that the electrical key transmitter SUB-ASSY is positioned correctly and facing in the direction shown in the figure.

*a	Inspection point

*a	0.1 m or more (0.328 feet or more)

·If the electrical key transmitter SUB-ASSY is 0.1 m (0.328 feet) or more away from the rear bumper, the wireless buzzer does not go off.
·If the warning buzzer beeps, radio waves might be leaking from the indoor electrical key antenna no. 3 (antenna located inside the trunk).

(5) Check the push button start function (applicable to automatic transmission only).

(a) With the engine switch turned off, move the shift lever in P. Holding the electrical key transmitter SUB-ASSY in your hand, depress the brake pedal. Check that the key indicator on the combination meter ASSY lights in green. If the key indicator light of the combination meter ASSY lights up green, press the engine switch, and check that the engine starts.

(b) Without depressing the brake pedal, change the power mode to IG OFF. Press the electrical key transmitter SUB-ASSY and check that the power mode changes as follows: OFF → ON (ACC) → ON (IG) → OFF. If the shift lever is in a position other than P when the engine switch is ON (IG), however, the power mode does not change to OFF and remains in the ON (ACC) state.

(c) Turn off the engine and press the engine switch. Check if the power mode changes to OFF (the engine stops and all electrical systems turn off). If, however, the vehicle is stopped with the shift lever in a position other than P, the power mode does not change to OFF and changes to the ON (ACC) state even if you press the engine switch. In this case, move the shift lever back into P, press the engine switch, and check that the power mode changes to OFF. After the power turns OFF, open the door and check that the steering lock operates.

(d) Inspect the entry ignition operating range (front). In one of the inspection points, place the electrical key transmitter SUB-ASSY of the front seat in the direction shown in the figure, and check that the engine starts.

*a	Inspection point

·Even when the electrical key transmitter SUB-ASSY is located within the key detection area inside the vehicle, it might not be detected properly if it is located on the instrument panel, inside the accessory box of the instrument panel, inside or near the front cup holder, inside the glove compartment, on package tray trim panel ASSY, or on the floor.
·If the electrical key transmitter SUB-ASSY is within 0.2 m {0.66 feet} from the shift lever, communication may be impossible.
·If the electrical key transmitter SUB-ASSY is on the instrument panel or inside the glove compartment, the engine control system might not be activated.

Perform the inspection from both of these inspection points.

(e) Inspect the push button start operating range (rear floor). In one of the inspection points, place the electrical key transmitter SUB-ASSY, and check that the engine starts.

*a	Inspection point

Even when the electrical key transmitter SUB-ASSY is located within the key detection area inside the vehicle, it might not be detected properly if it is located on the instrument panel, inside the accessory box of the instrument panel, inside or near the front cup holder, inside the glove compartment, on package tray trim panel ASSY, or on the floor.

Perform the inspection from both of these inspection points.

(6) Check the push button start function (applicable to manual transmission only).

(a) With the engine switch turned off and holding the electrical key transmitter SUB-ASSY in your hand, depress the clutch pedal. Check if the key indicator on the combination meter ASSY lights up green. If the key indicator light of the combination meter ASSY lights up green, press the engine switch, and check that the engine starts.

(b) Without depressing the clutch pedal, change the power mode to IG OFF. Press the electrical key transmitter SUB-ASSY and check that the power mode changes as follows: OFF → ON (ACC) → ON (IG) → OFF.

(c) Turn off the engine and press the engine switch. Check if the power mode changes to OFF (the engine stops and all electrical systems turn off). Open the door and check that the steering lock operates.

(d) Inspect the push button start operating range (front floor). In one of the inspection points, place the electrical key transmitter SUB-ASSY of the front seat in the direction shown in the figure, and check that the engine starts.

*a	Inspection point

·Even when the electrical key transmitter SUB-ASSY is within the vehicle interior key detection area, if the transmitter SUB-ASSY is near the instrument panel, the accessory box of the instrument panel, inside or near the front cup holder, in the glove compartment, or on the floor, it may not be detected properly.
·If the electrical key transmitter SUB-ASSY is within 0.2 m {0.66 feet} from the shift lever, communication may be impossible.
·If the electrical key transmitter SUB-ASSY is on the instrument panel or inside the glove compartment, the engine control system might not be activated.

Perform the inspection from both of these inspection points.

If the electrical key transmitter SUB-ASSY is on the instrument panel or inside the glove compartment, the engine control system might not be activated.

(e) Inspect the push button start operating range (rear floor). In one of the inspection points, place the electrical key transmitter SUB-ASSY, and check that the engine starts.

*a	Inspection point

Perform the inspection from both of these inspection points.

(7) Check the lockout protection function (interior check).

To prevent the key from being locked in the vehicle, perform this inspection procedure with a door glass open.

(a) Turn the ignition switch to OFF.

(b) Place the electrical key transmitter SUB-ASSY on the front or rear seat.

(d) Touch the lock sensor on the front door and check that the door does not lock, and that the lockout protection buzzer (exterior buzzer) sounds for approximately 10 seconds.

(8) Check the entry cancel function.

(a) Cancel the entry & start system and check that all functions of the entry & start system (entry function) are disabled.

·To cancel the entry & start system (entry function), refer to the procedure described below. (Refer to

)
·Even if you cancel the entry & start system, you can lock/unlock doors by a wireless operation. You can also operate the entry & start system by placing the electrical key transmitter SUB-ASSY over the engine switch.

(b) Enable the key cancel function (entry cancel function) and check that all functions of the entry & start system are disabled.

(9) Check the answer-back function (blinking of the hazard warning light and the sounding of the buzzer*).

Entry operation	Hazard warning light
Entry door lock	Blinks once*.
Entry door unlock	Blinks twice*.
Entry trunk open	No blinking*

2. Keyless access system check

Perform this check procedure with the vehicle stopped.

In [Keyless access system check], you can check if the electrical key transmitter SUB-ASSY is properly detected by a specific electrical key antenna or is properly functioning in a specific detection area by sounding the wireless buzzer.

(1) Enter the following menu items: [Keyless access system check] → [Collation ECM] → [Work Support] → [Function Check Sequence] → [Keyless access system check].

(2) Refer to the table below and inspect an appropriate item.

Tester display	Check item
[Driver’s External Transmitter + Interior Tuner] *1	Front door outer handle ASSY (electrical key antenna) (driver’s side antenna)
[Passenger’s External Transmitter + Interior Tuner] *2	Front door outer handle ASSY (electrical key antenna) (front passenger’s side antenna)
[Fr Interior Transmitter + Interior Tuner] *3	Indoor electrical key antenna ASSY no. 1 (front floor)
[Rr Internal transmitter + Indoor tuner] *4	Indoor electrical key antenna ASSY no. 2 (rear floor)
[Trunk External Transmitter + Interior Tuner] *5	Electrical key antenna (trunk exterior)
[Trunk Internal Transmitter + Interior Tuner] *6	Indoor electrical key antenna ASSY No. 3 (trunk)
[Immobilizer amplifier transmission] *7	Amplifier (engine switch)

(3) Move the electrical key transmitter SUB-ASSY toward a specific electrical key antenna, and check that the wireless door buzzer beeps.

(a) *1: Front door outer handle ASSY (driver’s side electrical key antenna)

*A	For LHD
*B	For RHD
*a	Approx. 0.7m

·As shown in the figure, hold the electrical key transmitter SUB-ASSY at the same level as the front door outer handle ASSY (approximately 0.8 m above ground).
·*2: Inspect the passenger’s door as well using the same procedure.

(4) *3: Indoor electrical key antenna ASSY no. 1 (front floor)

*a	Inspection point

Place the electrical key transmitter SUB-ASSY on the driver’s side or passenger’s side front seat cushion.

(5) *4: Indoor electrical key antenna ASSY no. 2 (rear floor)

*a	Inspection point

Place the electrical key transmitter SUB-ASSY on the rear seat.

(6) *5: Electrical key antenna (trunk exterior)

*a	Approx. 0.7m

Hold the electrical key transmitter SUB-ASSY at the same level as the upper surface of the rear bumper, positioning it at the center of the rear end of the vehicle, as shown in the figure.

(7) *6: Indoor electrical key antenna ASSY no. 3 (in the trunk)

*a	Inspection point

Place the electrical key transmitter SUB-ASSY inside the trunk. Even when the electrical key transmitter SUB-ASSY is placed inside the trunk, the buzzer does not necessarily go off.

(8) *7: Amplifier (engine switch)

Hold the electrical key transmitter SUB-ASSY near the engine switch, with its logo side facing the engine switch.

CUSTOMIZE PARAMETERS

1. CUSTOMIZE ENTRY AND START SYSTEM (for Entry Function)

The following items can be customized.

·When the customer requests a change in a function, first make sure that the function can be customized.
·Record the current settings before customizing.

(1) CUSTOMIZE ENTRY AND START SYSTEM (for Entry Function)

(a) Customizing with the SSM3

(b) Connect the SSM3 to the DLC3.

(d) Turn the SSM3 on.

(e) Enter the following menus: [Keyless access system check] → [Collation ECM] → [Unit customizing]

(f) Select the setting by referring to the table below.

(2) Entry cancel function (manual operation)

Display	Default	Content	Setting	Relevant ECU
[Ignition Available Area]	All	Function that sets the area that the key must be in before the engine switch can be operated.	Front or All	Certification ECU (smart key ECU assembly)
[Parking Wait Time]	2.5s	Function that sets the period of time (lock confirmation time) that the door is prevented from being unlocked by operating the front door outside handle assembly after an entry lock operation is performed.	0.5s, 1.5s, 2.5s or 5s	Certification ECU (smart key ECU assembly)
[Trunk Open Mode]	ON	Function that opens the trunk when the driver has the electrical key transmitter sub-assembly and presses the trunk opening switch assembly.	OFF or ON	Certification ECU (smart key ECU assembly)
[Smart Cancel]	OFF	Function that enables or disables the entry and start system.	OFF or ON	Certification ECU (smart key ECU assembly)
[Smart door unlock mode]	Driver	Function that chooses the doors to be operated by entry unlock operation.	All or Driver	Certification ECU (smart key ECU assembly)
[Touch Activation Over Threshold]	Active	The function that limits the consecutive entry lock operation to only 2 times can be changed between Active and Not Active. When in Not Active mode, there is no limit for the number of times that the consecutive entry lock operation can be performed.	Active or Not Active	Certification ECU (smart key ECU assembly)

Warning

Display	Default	Content	Setting	Relevant ECU
[Key Low Battery Warning]	ON	Enables or disables the sounding of the buzzer when the key battery is low and the engine switch is turned off after being on (IG) for 20 minutes or more.	OFF or ON	Certification ECU (smart key ECU assembly)
[Key Left in Vehicle Buz]	ON	Function to warn when left the electrical key transmitter sub-assembly in the vehicle.	OFF or ON	Certification ECU (smart key ECU assembly)
[IG ON Key Out Warning]	ON	Enables or disables the lock sensor function that sets off the alarm if the lock sensor is touched when the shift lever is in P (transmission A/T) and the power is ON.	OFF or ON	Certification ECU (smart key ECU assembly)

While the entry and start system is canceled, it is possible to lock and unlock the doors with the wireless operation, and the start system can be operated by holding the key against the engine switch.

(a) The following functions are disabled when the entry and start system is canceled.

1. Entry unlock/lock functions
2. Entry ignition function
3. Key lock-in prevention function
4. Entry back door open/lock function
5. Entry warning functions

(b) Canceling the system operation:

1. Make sure the following conditions are met:

·The engine switch is off.
·The driver side door is closed.
·The driver side door is unlocked.

2. Press the unlock switch of the electrical key transmitter sub-assembly.
3. Open the driver side door within 5 seconds of completing the step above (driver side door: closed at beginning of step → opened).
4. With the driver side door open, press the unlock switch of the electrical key transmitter sub-assembly 2 times within 5 seconds of completing the step above.

If the driver side door is closed before or while pressing the unlock switch, the entry cancel setting mode will end.

5. Close and open the driver side door twice within 30 seconds of completing the above step (driver side door: open at beginning of step → closed → opened → closed → opened).
6. With the driver side door open, press the unlock switch of the electrical key transmitter sub-assembly 2 times within 30 seconds of completing the step above.

If the driver side door is closed before or while pressing the unlock switch, the entry cancel setting mode will end.

7. Close and open the driver side door within 30 seconds of completing the step above (driver side door: open at beginning of step → closed → opened).
8. Close the driver side door within 5 seconds of completing the above step.
9. Check that the wireless buzzer sounds twice (short beeps) to confirm that the entry and start system has been canceled.

1. Perform the procedures to cancel the entry and start system again.

(d) Check that the wireless buzzer sounds once (short beep) to confirm that the entry and start system has been restored to the active state.

·The system changes between the canceled state and the active state each time the procedure to cancel the system is performed.
·The buzzer sounds twice when the system changes from the active state to the canceled state, and sounds once when the system changes from the canceled state to the active state.

PROBLEM SYMPTOMS TABLE

·Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
·Inspect the fuses and relays related to this system before inspecting the suspected areas below.

Entry and Start System (for Entry Function)

Symptom	Suspected Area	See page
Wireless Door Lock Buzzer does not Sound	Wireless door lock buzzer
	Wire harness or connector	-
	Main body ECU (multiplex network body ECU)	-
	Instrument panel junction block assembly	-
	Certification ECU (smart key ECU assembly)	-
All Door Entry Lock/Unlock Functions and Wireless Functions do not Operate	Power door lock control system
	Electrical key transmitter sub-assembly	-
	Transmitter battery	-
	Wire harness or connector	-
	Door control receiver	-
	Certification ECU (smart key ECU assembly)	-
All Door Entry Lock/Unlock Functions do not Operate, but Wireless Functions Operate	Electrical key transmitter sub-assembly
	Certification ECU (smart key ECU assembly)	-
Driver Side Door Entry Unlock Function does not Operate	Power door lock control system
	Front door outside handle assembly (for driver side)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Front Passenger Side Door Entry Unlock Function does not Operate	Power door lock control system
	Front door outside handle assembly (for front passenger side)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Driver Side Door Entry Lock and Unlock Function does not Operate	Power door lock control system
	Front door outside handle assembly (for driver side)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Front Passenger Side Door Entry Lock and Unlock Function does not Operate	Power door lock control system
	Front door outside handle assembly (for front passenger side)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Driver Side Door Entry Lock Function does not Operate	Power door lock control system
	Front door outside handle assembly (for driver side)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Front Passenger Side Door Entry Lock Function does not Operate	Power door lock control system
	Front door outside handle assembly (for front passenger side)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Room Oscillator does not Recognize Key	No. 1 indoor electrical key antenna assembly (front floor)
	No. 2 indoor electrical key antenna assembly (rear floor)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Trunk Entry Unlock Function does not Operate when Key is Outside Trunk	Power door lock control system
	Electrical key antenna (outside trunk)	-
	Trunk door opening switch assembly	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Key Trunk Lock-in Prevention Function does not Operate	Power door lock control system
	Electrical key antenna (outside trunk)	-
	Certification ECU (smart key ECU assembly)	-
	Wire harness or connector	-
Entry Interior Alarm does not Sound	Meter/gauge system
Entry Interior Alarm does not Sound	Certification ECU (smart key ECU assembly)	-

ECM TERMINAL ARRANGEMENT

1. 1. Check the collation ECM (smart key ECM ASSY).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Measure the voltage and resistance according to the following table.

Remove the connectors and measure the voltage and resistance of the wiring harness side.

Inspection terminals	Input/output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
D48-2 (+B) - D48-11(GND)	Input	+B power supply	Always	9.5 - 16V	-
D48-11 (GND) - chassis ground	-	Ground	Always	1 Ω or less	-

If you cannot obtain the specified result, you have to suspect a defect in the wiring harness side. Otherwise, you have to remove the fuse.

(3) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

(4) Measure the voltage according to the following table.

·Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to

)
·Check the customize setting available for the entry & start system as well as the “ignition available area”. (Refer to

)

Inspection terminals	Input/output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
D41-5 (IG2) - D48-11 (GND)	Input	IG power supply	Engine switch OFF → ON (IG)	1 V or less → 11 - 14 V	IG
D41-12 (CLG1) - D48-11 (GND)	Output	Output to the driver’s side electrical key antenna (the collation ECM (smart key ECM ASSY) sends a request signal (challenge) to the door electrical key antenna to create a detection area).	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is inside the detection area*1. 6. All doors are locked by a wireless operation.	Pulse generation (Refer to waveform 1)	[Overhead + Driver Side] ([Keyless access system check])
D41-12 (CLG1) - D48-11 (GND)	Output		Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*2. 6. All doors are locked by a wireless operation.	Pulse generation (Refer to waveform 2)	[Overhead + Driver Side] ([Keyless access system check])
D41-13 (CG1B) - D48-11 (GND)	Output	Output to the driver’s door electrical key antenna (terminals located on a component opposite from the CLG1 output terminal)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. All doors are locked by a wireless operation.	Pulse generation (Refer to waveform 2)	[Overhead + Driver Side] ([Keyless access system check])
D41-11 (CLG2) - D48-11 (GND)	Output	Output to the passenger’s side electrical key antenna (the collation ECM (smart key ECM ASSY) sends a request signal (challenge) to the door electrical key antenna to create a detection area).	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is inside the detection area*1. 6. All doors are locked by a wireless operation.	Pulse generation (Refer to waveform 1)	[Overhead + Passenger Side] ([Keyless access system check])
D41-11 (CLG2) - D48-11 (GND)	Output		Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*2. 6. All doors are locked by a wireless operation.	Pulse generation (Refer to waveform 2)	[Overhead + Passenger Side] ([Keyless access system check])
D41-10 (CG2B) - D48-11 (GND)	Output	Output to the passenger’s door electrical key antenna (terminals located on a component opposite from the CLG2 output terminal)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. All doors are locked by a wireless operation.	Pulse generation (Refer to waveform 2)	[Overhead + Passenger Side] ([Keyless access system check])
D41-3 (CLG5) - D48-11 (GND)	Output	Output to the indoor electrical key antenna ASSY no. 1 (front floor)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	Pulse generation (Refer to waveform 3)	[Overhead + Front Room] ([Keyless access system check])
D41-2 (CG5B) - D48-11 (GND)	Output	Output to the indoor electrical key antenna ASSY no. 1 (front floor) (terminals located on a component opposite from the CLG5 output terminal)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	Pulse generation (Refer to waveform 3)	[Overhead + Front Room] ([Keyless access system check])
D41-20 (TSW1) - D48-11 (GND)	Input	Driver’s door lock sensor signal input (a signal is sent from the door lock sensor on the front door outer handle ASSY to the collation ECM (smart ECM ASSY). The collation ECM (smart key ECM ASSY) sends out a 12 V pulse waveform from the terminal TSW every 40 milliseconds. Once the door lock sensor is touched, the pulse is shorted to the ground.	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Driver’s door lock sensor, not touched → touched	Pulse generation (Refer to waveform 4)	[D-Door Trigger Switch]
D41-8 (TSW2) - D48-11 (GND)	Input	Passenger’s door lock sensor signal input (a signal is sent from the door lock sensor on the front door outer handle ASSY to the collation ECM (smart ECM ASSY). The collation ECM (smart key ECM ASSY) sends out a 12 V pulse waveform from the terminal TSW every 40 milliseconds. Once the door lock sensor is touched, the pulse is shorted to the ground.	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Passenger’s door lock sensor, not touched → touched	Pulse generation (Refer to waveform 4)	[P-Door Trigger Switch]
D41-22 (SEN1) - D48-11 (GND)	Input	Driver’s door unlock sensor signal input (if you touch the touch sensor when the system is in unlock standby mode, the door electrical key antenna sends a touch sensor input signal (detection signal) to the collation ECM (smart key ECM ASSY)).	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are locked. 4. The electrical key transmitter SUB-ASSY is not in the appropriate range from the vehicle. 5. Driver’s door unlock sensor, not touched → touched	Pulse generation (Refer to waveform 4)	[D-Door Touch Sensor]
D41-23 (SEN2) - D48-11 (GND)	Input	Passenger’s door unlock sensor signal input (if you touch the touch sensor when the system is in unlock standby mode, the door electrical key antenna sends a touch sensor input signal (detection signal) to the collation ECM (smart key ECM ASSY)).	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are locked. 4. The electrical key transmitter SUB-ASSY is not in the appropriate range from the vehicle. 5. Passenger’s door unlock sensor, not touched → touched	Pulse generation (Refer to waveform 4)	[P-Door Touch Sensor]
D40-27 (TSW5) - D48-11 (GND)	Input	Trunk opening switch signal input	Trunk opening switch ASSY, OFF → ON	Pulse generation (Refer to waveform 4)	[Tr/B-Door Unlock SW]
D40-11 (CLG6) - D48-11 (GND)	Output	Output to the indoor electrical key antenna ASSY no. 2 (rear floor)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	Pulse generation (Refer to waveform 4)	[Overhead + Rear Room] ([Keyless access system check])
D40-10 (CG6B) - D48-11 (GND)	Output	Output to the indoor electrical key antenna ASSY no. 2 (rear floor) (terminals located on a component opposite from the CLG6 output terminal).	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	Pulse generation (Refer to waveform 4)	[Overhead + Rear Room] ([Keyless access system check])
D40-9 (CLG7) - D48-11 (GND)	Output	Output to the indoor electrical key antenna ASSY no. 3 (antenna located inside the trunk)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	Pulse generation (Refer to waveform 3)	[Overhead + Trunk] ([Keyless access system check])
D40-8 (CG7B) - D48-11 (GND)	Output	Output to the indoor electrical key antenna ASSY no. 3 (antenna located inside the trunk) (terminals located on a component opposite from the CLG7 output terminal)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	Pulse generation (Refer to waveform 3)	[Overhead + Trunk] ([Keyless access system check])
D41-19 (POS1) - D48-11 (GND)	Output	Driver’s door unlock sensor power (12 v (the voltage drops once the engine switch is turned ON (IG))).	Engine switch OFF → ON (IG)	9 - 14 V → 2 V or less	-
D41-21 (POS2) to D48-11 (GND)	Output	Passenger’s door unlock sensor power (12 v (the voltage drops once the engine switch is turned ON (IG))).	Engine switch OFF → ON (IG)	9 - 14 V → 2 V or less	-
D40-5 (RCO) - D48-11 (GND)	Output	Output to the door control receiver (power for the door control receiver. When the receiver initiates operation, the collation ECM (smart key ECM ASSY) outputs 5 V).	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. The electrical key transmitter SUB-ASSY is outside the detection area*2. 4. Lock/unlock button on the electrical key transmitter SUB-ASSY, not pressed → pressed	Pulse generation (Refer to waveform 5)	-
D40-17 (RDA) - D48-11 (GND)	Input	The door control receiver checks the data transmitted from the electrical key transmitter SUB-ASSY. The door control receiver then transmits the data to the ECM and intermittently shorts the 12 V signal sent from the collation ECM (smart key ECM ASSY) to the ground.	Description: 1. The engine switch is OFF. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is outside the detection area2 and inside the indoor wireless function operating range3. 4. Lock/unlock button on the electrical key transmitter SUB-ASSY, not pressed → pressed	Pulse generation (Refer to waveform 6)	-
D40-19 (RSSI) - D48-11 (GND)	Input	Communication channel switching circuit	Description: 1. The engine switch is OFF. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is outside the detection area2 and inside the indoor wireless function operating range3. 4. Lock/unlock button on the electrical key transmitter SUB-ASSY, not pressed → pressed	Pulse generation (Refer to waveform 7)
D40-2 (CLG8) - D48-11 (GND)	Output	Output to the electrical key antenna (trunk exterior antenna)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Trunk opening switch ASSY, OFF → ON	Pulse generation (refer to waveform 8)	[Overhead + Trunk] ([Keyless access system check])
D40-1 (CG8B) - D48-11 (GND)	Output	Output to the electrical key antenna (trunk exterior antenna) (terminals located on a component opposite from the CLG8 output terminal)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Trunk opening switch ASSY, OFF → ON	Pulse generation (refer to waveform 8)	[Overhead + Trunk] ([Keyless access system check])

*1: For a detailed description about the inside of the entry function detection area, refer to “Operation check”. (Refer to

)
*2: For a detailed description about the outside of the entry function detection area, refer to “Operation check”. (Refer to

)

(5) Using an oscilloscope, check waveform 1.

NOTE:

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 1 (reference)

*: For a detailed description on inside the entry function detection area, refer to “Operation check”. (Refer to

Item	Contents
Tester connection	·D41-12 (CLG1) - D48-11 (GND) ·D41-11 (CLG2) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is inside the detection area*. 6. All doors are locked by a wireless operation.

)

(6) Using an oscilloscope, check waveform 2.

NOTE:

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 2 (reference)

*: For a detailed description on inside the entry function detection area, refer to “Operation check”. (Refer to

Item	Contents
Tester connection	·D41-12 (CLG1) - D48-11 (GND) ·D41-11 (CLG2) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*. 6. All doors are locked by a wireless operation.

)

*: For a detailed description on inside the entry function detection area, refer to “Operation check”. (Refer to

Item	Contents
Tester connection	·D41-13 (CG1B) - D48-11 (GND) ·D41-10 (CG2B) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. All doors are locked by a wireless operation.

)

(7) Using an oscilloscope, check waveform 3.

NOTE:

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 3 (reference)

*a	A door is open.
*b	30 seconds after the closing of a door

(8) Using an oscilloscope, check waveform 4.

Item	Contents
Tester connection	·D41-3 (CLG5) - D48-11 (GND) ·D41-2 (CG5B) - D48-11 (GND) ·D40-11 (CLG6) - D48-11 (GND) ·D40-10 (CG6B) - D48-11 (GND) ·D40-9 (CLG7) - D48-11 (GND) ·D40-8 (CG7B) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 3 seconds

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 6 (reference)

*a	Sampling is actually performed.

Item	Contents
Tester connection	D41-20 (TSW1) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Driver’s door lock sensor, not touched → touched

Item	Contents
Tester connection	D41-8 (TSW2) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Passenger’s door lock sensor, not touched → touched

Item	Contents
Tester connection	D41-22 (SEN1) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are locked. 4. The electrical key transmitter SUB-ASSY is not in the appropriate range from the vehicle. 5. Driver’s door lock sensor, not touched → touched

Item	Contents
Tester connection	D41-23 (SEN2) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are locked. 4. The electrical key transmitter SUB-ASSY is not in the appropriate range from the vehicle. 5. Passenger’s door unlock sensor, not touched → touched

(9) Using an oscilloscope, check waveform 5.

Item	Contents
Tester connection	D40-27 (TSW5) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Trunk opening switch ASSY, OFF → ON

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 7 (reference)

*a	Before the lock/unlock button on the electrical key transmitter SUB-ASSY is pressed
*b	After the lock/unlock button on the electrical key transmitter SUB-ASSY is pressed

*1: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

Item	Contents
Tester connection	D40-5 (RCO) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. The electrical key transmitter SUB-ASSY is outside the detection area1 and inside the indoor wireless function operating range2. 4. Lock/unlock button on the electrical key transmitter SUB-ASSY, not pressed → pressed

)
*2: For a detailed description on inside the wireless function operating range, refer to “Operation check”. (Refer to

)

(10) Using an oscilloscope, check waveform 6.

NOTE:

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 8 (reference)

*a	Before the lock/unlock button on the electrical key transmitter SUB-ASSY is pressed
*b	After the lock/unlock button on the electrical key transmitter SUB-ASSY is pressed

*1: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

Item	Contents
Tester connection	D40-17 (RDAS) - D48-11 (GND)
Tool setting	5 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is outside the detection area1 and inside the indoor wireless function operating range2. 4. Lock/unlock button on the electrical key transmitter SUB-ASSY, not pressed → pressed

)
*2: For a detailed description on inside the wireless function operating range, refer to “Operation check”. (Refer to

)

(11) Using an oscilloscope, check waveform 7.

NOTE:

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 8 (reference)

*a	Before the lock/unlock button on the electrical key transmitter SUB-ASSY is pressed
*b	After the lock/unlock button on the electrical key transmitter SUB-ASSY is pressed

*1: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

Item	Contents
Tester connection	D40-19 (RSSI) - D48-11 (GND)
Tool setting	5 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is outside the detection area1 and inside the indoor wireless function operating range2. 4. Lock/unlock button on the electrical key transmitter SUB-ASSY, not pressed → pressed

)
*2: For a detailed description on inside the wireless function operating range, refer to “Operation check”. (Refer to

)

(12) Using an oscilloscope, check waveform 8.

NOTE:

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 5 (reference)

*a	Change the power mode to IG OFF, close the door, and turn the trunk opening switch ASSY OFF and then ON.

2. Check the instrument panel junction block ASSY and the main body ECM (multiplex network body ECM).

Item	Contents
Tester connection	·D40-2 (CLG8) - D48-11 (GND) ·D40-1 (CG8B) - D48-11 (GND)
Tool setting	2 V/DIV., 500 ms/DIV.
Conditions	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Trunk opening switch ASSY, OFF → ON

Instrument panel junction block ASSY

Main body ECM (multiplex network body ECM)

(1) Remove the main body ECM (multiplex network body ECM) from the instrument panel junction block ASSY.

(2) Measure the voltage and resistance according to the following table.

Terminal No. (symbol)	Input/output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
MB-1 - chassis ground	Input	Battery power supply	Always	11 - 14V	-
MB-8 - chassis ground	Input	Engine switch power supply	Engine switch is ON (IG)	11 - 14V	[Ignition]
MB-8 - chassis ground	Input	Engine switch power supply	The engine switch is OFF.	1 V or less	[Ignition]
MB-9 - chassis ground	Input	ACC power supply	The engine switch is on (ACC).	11 - 14V	[ACC SW]
MB-9 - chassis ground	Input	ACC power supply	The engine switch is OFF.	1 V or less	[ACC SW]
MB-11 - chassis ground	Input	Ground	Always	1 Ω or less	-
MB-32 - chassis ground	Input	Battery power supply	Always	11 - 14V	-
D6-1 - Chassis ground	-	Ground	Always	1 Ω or less	-
A73-4 - chassis ground	-	Ground	Always	1 Ω or less	-

If you cannot get the specified result, there could be a problem in the wiring harnesses.

(3) Install the main body ECM (multiplex network body ECM) to the instrument panel junction block ASSY. (Refer to

)

(4) Refer to the value shown in table below and measure the voltage and waveform.

Terminal No. (symbol)	Input/output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
3A-28 - chassis ground	Input	Driver’s side courtesy light switch	Driver’s door is open.	1 V or less	[D Door Courtesy SW]
3A-28 - chassis ground	Input	Driver’s side courtesy light switch	Driver’s door is closed	Pulse generation	[D Door Courtesy SW]
3B-13 - chassis ground	Input	Passenger’s side courtesy light switch	The passenger’s door is open.	1 V or less	[Door Courtesy SW]
3B-13 - chassis ground	Input	Passenger’s side courtesy light switch	The passenger’s door is closed.	Pulse generation	[Door Courtesy SW]
3D-26 - chassis ground	Input	Trunk courtesy light switch	The trunk door is open.	1 V or less	[Luggage Courtesy SW]
3D-26 - chassis ground	Input	Trunk courtesy light switch	Change the power mode to IG OFF, close the door, and close the trunk.	11 - 14V	[Luggage Courtesy SW]
D5-11 - chassis ground*1	Input	Driver’s door lock/unlock switch	The driver’s door key cylinder is in the lock position.	1 V or less	-
D5-11 - chassis ground*1	Input	Driver’s door lock/unlock switch	The driver’s door key cylinder is in the neutral position after you change the power mode to IG OFF and close the door.	Pulse generation (refer to waveform 1 or waveform 2)	-
D5-12 - chassis ground*1	Input	Driver’s door lock/unlock switch	The driver’s door key cylinder is in the lock position.	1 V or less	-
D5-12 - chassis ground*1	Input	Driver’s door lock/unlock switch	The driver’s door key cylinder is in the neutral position after you change the power mode to IG OFF and close the door.	Pulse generation (refer to waveform 1 or waveform 3)	-
3B-2 - chassis ground	Output	Door lock motor lock drive output (driver’s side)	The passenger’s side control switch is not pressed, and the passenger’s door key cylinder is in the neutral position*1.]	1 V or less	-
3B-2 - chassis ground	Output	Door lock motor lock drive output (driver’s side)	The passenger’s door control switch is pushed to the lock position, or the passenger’s door key cylinder is in the lock position*1.]	11 - 14V	-
3B-3 - chassis ground	Output	Door lock motor lock drive output (passenger’s side)	The passenger’s side control switch is not pressed, and the passenger’s door key cylinder is in the neutral position*1.]	1 V or less	-
3B-3 - chassis ground	Output	Door lock motor lock drive output (passenger’s side)	The passenger’s door control switch is pushed to the lock position, or the passenger’s door key cylinder is in the lock position*1.]	11 - 14V	-
3B-6 - chassis ground	Output	Door lock motor lock drive output (trunk)	The trunk open button on the electrical key transmitter SUB-ASSY is not pressed.	1 V or less	The trunk is open.
3B-6 - chassis ground	Output	Door lock motor lock drive output (trunk)	The trunk open button on the electrical key transmitter SUB-ASSY is pressed.	11 - 14V	The trunk is open.
3B-1 - chassis ground	Output	Door lock motor unlock drive output (driver’s side)	The passenger’s side control switch is not pressed, and the passenger’s door key cylinder is in the neutral position*.]	1 V or less	-
3B-1 - chassis ground	Output	Door lock motor unlock drive output (driver’s side)	The passenger’s door control switch is pushed to the unlock position, or the passenger’s door key cylinder is in the unlock position*.]	11 - 14V	-
3B-4 - chassis ground	Output	Door lock motor unlock drive output (passenger’s side)	The passenger’s side control switch is not pressed, and the passenger’s door key cylinder is in the neutral position*.]	1 V or less	-
3B-4 - chassis ground	Output	Door lock motor unlock drive output (passenger’s side)	The passenger’s door control switch is pushed to the unlock position, or the passenger’s door key cylinder is in the unlock position*.]	11 - 14V	-
D6-11 - Chassis ground	Input	Driver’s door unlock detection switch input	The driver’s door is locked.	1 V or less	[D-Door Lock Pos SW]
D6-11 - Chassis ground	Input	Driver’s door unlock detection switch input	Change the power mode to IG OFF, close all doors, and lock the driver’s door.	Pulse generation (refer to waveform 1 or waveform 2)	[D-Door Lock Pos SW]
D6-12 - Chassis ground	Input	Passenger’s door unlock detection switch input	Passenger’s door is locked.	1 V or less	[P-Door Lock Pos SW]
D6-12 - Chassis ground	Input	Passenger’s door unlock detection switch input	Change the power mode to IG OFF, close all doors, and lock the passenger’s door.	Pulse generation (refer to waveform 3)	[P-Door Lock Pos SW]

·*: w/ key link switch

(5) Inspect using an oscilloscope.

The oscilloscope waveform shown in the figure is an example for reference. The noise and chattering are not shown in the figure.

(a) Waveform 1 (reference)

Item	Contents
Measuring terminal	D6-11(L2) ←→ chassis ground
Equipment setting	5 V/DIV., 20 ms/DIV.
Measuring conditions	IG OFF, all doors closed, driver’s door locked

Item	Contents
Measuring terminal	D6-12(UL2) ←→ chassis ground
Equipment setting	5 V/DIV., 20 ms/DIV.
Measuring conditions	IG OFF, all doors closed, passenger’s door locked

(b) Waveform 2 (reference)

Item	Contents
Measuring terminal	D6-11(L2) ←→ chassis ground
Equipment setting	5 V/DIV., 20 ms/DIV.
Measuring conditions	IG OFF, all doors closed, driver’s door locked

Item	Contents
Measuring terminal	D6-12(UL2) ←→ chassis ground
Equipment setting	5 V/DIV., 20 ms/DIV.
Measuring conditions	IG OFF, all doors closed, passenger’s door locked

DIAGNOSIS SYSTEM

1. CHECK DLC3

(1) Check the DLC3.

2. INSPECT BATTERY VOLTAGE

(1) Measure the battery voltage.

Standard voltage : 11 to 14 V

If the voltage is below 11V, recharge or replace the battery.

DTC CHECK / CLEAR

1. CHECK DTC

(2) Turn the engine switch on (IG).

(3) Turn the SSM3 on.

(4) Enter the following menus: Body / Entry & Start / Trouble Codes.

(5) Check for DTCs.

2. CHECK DTC

(2) Turn the engine switch on (IG).

(3) Turn the SSM3 on.

(4) Enter the following menus: Body / Entry & Start / Trouble Codes.

(5) Clear the DTCs by following the directions on the SSM3 display.

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

1. Current Data Display & Save

In the following table, the value listed in the normal condition is a reference value. Do not depend on reference value only when judging if the part is faulty.

By using the SSM3 and viewing [Current Data Display & Save], you can find out about the value and status related to items such as the switch, the sensor, or the actuator without having to remove the relevant parts. Because the non-intrusive inspection allows you to read the intermittent statuses or signals without interfering with parts or lines, it is very convenient. By reading the [Current Data Display & Save] information at the initial stage of troubleshooting, you can save on time for diagnosing trouble.

(4) Enter the following menu items: [Keyless access system check] → [Collation ECM] → [Current Data Display & Save], or select [Integ. unit mode] → [Current Data Display & Save], or select [Brake Control System] → [ABS/VDC System] → [Current Data Display & Save].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Item Name	Description/display range	Normal value	Remarks
[D seat unlock person sensor]	Driver’s door outer handle (unlock sensor) status Display range: OFF/ON	[OFF]: Driver’s door handle (unlock sensor) is not touched. [ON]: Driver’s door handle (unlock sensor) is touched.	·Even when you keep your fingers on the unlock sensor, [ON] is displayed only momentarily. ·Use this item to check if there is any abnormality in the unlock sensor when the smart unlock function does not work.
[P seat unlock person sensor]	Passenger’s door outer handle (unlock sensor) status Display range: OFF/ON	[OFF]: Passenger’s door handle (unlock sensor) is not touched. [ON]: Passenger’s door handle (unlock sensor) is touched.	·Even when you keep your fingers on the unlock sensor, [ON] is displayed only momentarily. ·Use this item to check if there is any abnormality in the unlock sensor when the smart unlock function does not work.
[D seat lock person sensor]	Driver’s door outer handle (lock sensor) status Display range: OFF/ON	[OFF]: Driver’s door outer handle (lock sensor) is not touched. [ON]: Driver’s door outer handle (lock sensor) is touched.	·Even when you keep your fingers on the lock sensor, [ON] is displayed only momentarily. ·Use this item to check if there is any abnormality in the lock sensor when the smart lock function does not work.
[P seat lock person sensor]	Passenger’s door outer handle (lock sensor) status Display range: OFF/ON	[OFF]: Passenger’s door outer handle (lock sensor) is not touched. [ON]: Passenger’s door outer handle (lock sensor) is touched.	·Even when you keep your fingers on the lock sensor, [ON] is displayed only momentarily. ·Use this item to check if there is any abnormality in the lock sensor when the smart lock function does not work.
[Tr/B-Door Unlock SW]	Trunk opening switch ASSY status Display range: OFF/ON	[OFF]: The trunk opening switch ASSY is not pressed. [ON]: The trunk opening switch ASSY is pressed.	Use this item to check if there is any abnormality in the unlock switch when the trunk unlock function does not work.
[Ignition]	IG power status Display range: OFF/ON	[OFF]: IG OFF [ON]: IG ON	·Use this item to identify what caused the engine switch operation malfunction] ·Get on the vehicle carrying the electrical key transmitter SUB-ASSY with you, and press the engine switch twice without depressing the brake pedal (transmission A/T) or the clutch pedal (transmission M/T). The power mode changes to IG ON if ] the key ID code transmitted by the electrical key transmitter SUB-ASSY matches that stored in the collation ECM (smart key ECM ASSY).]
[Incorrect vehicle ID]	The key number is incorrect. Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	The vehicle ID registered to the vehicle is different from that registered to the electrical key transmitter SUB-ASSY.] (If an electrical key transmitter SUB-ASSY of another vehicle enters a detection area created outside the vehicle while doors are locked, [Yes] is displayed for [Judgment: Wrong key No. (vehicle ID)] (an item under [Current Data Display & Save].] Probable causes ·An attempt might have been made to use an electrical key transmitter SUB-ASSY of another vehicle.] ·Communication error due to interference from external radio waves ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY)
[No response]	No response Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	Although the vehicle ID of the vehicle matches that of the electrical key transmitter SUB-ASSY, no response is returned from the electrical key transmitter SUB-ASSY. ] (When the lock switch or the engine switch is pressed, if the electrical key transmitter SUB-ASSY of the vehicle is not inside the detection area, or if the collation is NG due to battery drain, [Yes] is displayed for [Judgment: No response] (an item under [Current Data Display & Save]). ] Furthermore, if external radio waves are present in the LF band (134.2 kHz) transmitted by the vehicle or the RF band transmitted by the electrical key transmitter SUB-ASSY, [Yes] might be displayed for [Judgment: No response] (an item under [Current Data Display & Save]).] Probable causes ·An attempt might have been made to use an electrical key transmitter SUB-ASSY of another vehicle.] ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY) ·External radio waves
[Incorrect response code, format]	The code format is incorrect. Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	Data transmitted from the electrical key transmitter SUB-ASSY contained an error. ] (If external radio waves are present in the RF band radio waves transmitted by the electrical key transmitter SUB-ASSY, [Yes] might be displayed for [Judgment: Incorrect code format], [Judgment: No response], [Judgment: Incorrect ID code], and [Judgment: Incorrect challenge code] (items under [Current Data Display & Save]). Probable causes ·An attempt might have been made to use an electrical key transmitter SUB-ASSY of another vehicle.] ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY) ·External radio waves
[Exhausted battery]	The electrical key transmitter SUB-ASSY battery is drained. Display range: [Yes]/[No]	[Yes]: The battery is drained. [No]: The battery is not drained.	The electronic key transmitter SUB-ASSY transmits voltage to the collation ECM (smart key ECM ASSY). ] If the voltage being transmitted is 2.1 V or lower, the collation ECM (smart key ECM ASSY) displays [Yes] for [Judgment: Exhausted battery] (an item under [Current Data Display & Save]). NOTE: Make sure that the transmitter battery is at the room temperature when you check this item, which is located under [Current Data Display & Save]. (Example: At 20 °C below zero, [Yes] might be displayed even for a new transmitter battery.
[Incorrect response code, ID code]	The ID code is incorrect. Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	The ID code registered to the vehicle is different from that registered to the electrical key transmitter SUB-ASSY. ] (If external radio waves are present in the RF band transmitted by the electrical key transmitter SUB-ASSY, [Yes] might be displayed for [Judgment: Incorrect code format], [Judgment: No response], [Judgment: Incorrect ID code], and [Judgment: Incorrect challenge code] (items under [Current Data Display & Save]).] Probable causes ·An attempt might have been made to use an electrical key transmitter SUB-ASSY of another vehicle.] ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY) ·External radio waves
[Incorrect response code, challenge code]	The challenge code is incorrect. Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	The electrical key transmitter SUB-ASSY returns a wrong respond code in response to the challenge code transmitted from the vehicle. ] (If external radio waves are present in the RF band transmitted by the electrical key transmitter SUB-ASSY, [Yes] might be displayed for [Judgment: Incorrect code format], [Judgment: No response], [Judgment: Incorrect ID code], and [Judgment: Incorrect challenge code] (items under [Current Data Display & Save]).] Probable causes ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY) ·External radio waves
[Power Save Cnt 10 Min.]	Number of times power save control mode is activated (power save control mode is activated when the electrical key transmitter SUB-ASSY stays inside the exterior detection area for 10 minutes or more). Display range: 0 to 255 times	0 to 255	As long as the electrical key transmitter SUB-ASSY stays inside the key detection area outside the vehicle, there is frequent communication between the vehicle and the electrical key transmitter SUB-ASSY, which can overload the transmitter battery. If this state lasts for 10 minutes or longer, the exterior antenna that is detecting the electrical key transmitter SUB-ASSY stops transmitting signals to prevent the transmitter battery from draining out. ] The system can be resumed by a wireless lock/unlock operation or a mechanical key unlock operation.
[Power Save Cnt 5 Days]	Number of times power save control 1 mode (which disables periodic signal transmission from the exterior transmitter) is activated (power save control 1 mode is activated when the engine is never started for five or more days). Display range: 0 to 255 times	0 to 255	-
[Power Save Cnt 14 Days]	Number of times power save control 2 mode (which disables the door outer handle lock/unlock sensors of all doors except the driver’s door) is activated (power save control 2 mode is activated when the engine is never started for 14 or more days). Display range: 0 to 255 times	0 to 255	-
[Incorrect ID code]	The wireless ID code is incorrect. Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	The ID code registered to the vehicle is different from that registered to the electrical key transmitter SUB-ASSY. ] (When the received wireless ID is inconsistent with that of the registered electrical key transmitter SUB-ASSY, [Yes] is displayed for [Judgment: Incorrect wireless ID code] (an item under [Current Data Display & Save]).] If a wireless signal of another vehicle is received, [Yes] is displayed for [Judgment: Incorrect ID code] (an item under [Current Data Display & Save]). Probable causes ·An attempt might have been made to use an electrical key transmitter SUB-ASSY of another vehicle.] ·Communication error due to interference from external radio waves ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY)
[Incorrect ROL code]	The rolling code is incorrect. Display range: [Yes]/[No]	[Yes]: Communication status is abnormal. [No]: Communication status is normal.	The ROL code registered to the vehicle is different from that registered to the electrical key transmitter SUB-ASSY. Probable causes ·A switch on the electrical key transmitter SUB-ASSY was pressed 100 times or more in a location where radio waves cannot reach the vehicle. ·Communication error due to interference from external radio waves ·Defect in the electrical key transmitter SUB-ASSY or the collation ECM (smart key ECM ASSY)
[Wireless Signal Encryption Support]	Wireless/smart signal encryption support status Display range: [Yes]/[No]	[Yes]: Wireless/smart signal encryption is supported. [No]: Wireless/smart signal encryption is not supported.	-
[Immobilizer]	This item indicates the engine immobilizer system status, as determined by the smart key ECM ASSY (collation ECM). Display range: [Unset] / [Set]	[Unset]: The engine immobilizer is unset (engine start permitted) (ACC ON or further) [Set]: The engine immobilizer is set (engine start prohibited) (IG OFF)	When [Set] is displayed for this item, you cannot start the engine. ·The security indicator light blinks when [Set] is displayed for this item. ·The security indicator light is interlocked with the [Set]/[Unset] status of the immobilizer, but not with the [Lock]/[Unlock] status of the steering wheel.
[Short-circuit in the D seat exterior transmitter output circuit]	Driver’s side unlock sensor output circuit status Display range: [NG(Past)] / [OK]	[NG]: The driver’s side unlock sensor output circuit is abnormal. [OK]: The driver’s side unlock sensor output circuit is normal.	-
[Short-circuit in the P seat exterior transmitter output circuit]	Passenger’s side unlock sensor output circuit status Display range: [NG(Past)] / [OK]	[NG]: The passenger’s side unlock sensor output circuit is abnormal. [OK]: The passenger’s side unlock sensor output circuit is normal.	-
[Short-circuit in the D seat exterior transmitter output circuit (history)]	Driver’s side unlock sensor output circuit status (history) Display range: [NG(Past)] / [OK]	[NG]: The driver’s side unlock sensor output circuit was abnormal (history). [OK]: The driver’s side unlock sensor output circuit was normal (history).	-
[Short-circuit in the P seat exterior transmitter output circuit (history)]	Passenger’s side unlock sensor output circuit status (history) Display range: [NG(Past)] / [OK]	[NG]: The passenger’s side unlock sensor output circuit was abnormal (history). [OK]: The passenger’s side unlock sensor output circuit was normal (history).	-
[Confirmed number of all registered keys]	The number of registered electrical key transmitter SUB-ASSYs is displayed. Display range: 0 to 7	0 to 7 (number of registered keys)	Up to 7 keys can be registered.
[Smart Cancel]	Smart cancel function setting status Display range: OFF/ON	[OFF]: The smart cancel function is disabled. [ON]: The smart cancel function enabled.	By default, the smart cancel setting is disabled. If the customer wishes to cancel the smart function (which locks/unlocks doors by carrying the electrical key transmitter SUB-ASSY), disable the smart function setting using the customize function. (Refer to )

(6) System Operation Check Mode

Item Name	Description/display range	Normal value	Remarks
[D Door Courtesy]	Driver's seat door courtesy light switch status Display range: [Close]/[Open]	Close: the driver side door is closed Open: the driver side door is opened	-
[D Door Lock Pos]	Lock/unlock status of the driver’s side door Display range: [Lock]/[Unlock]	[Lock]: When the driver’s side door is locked [Unlock]: When the driver’s side door is unlocked	-
[P Door Courtesy]	Passenger’s door courtesy light switch status Display range: [Close]/[Open]	[Close]: When the passenger’s side door is closed [Open]: When the passenger’s side door is open	-
[P Door Lock Pos SW]	Lock/unlock status of the passenger’s side door Display range: [Lock]/[Unlock]	[Lock]: When the passenger’s side door is locked [Unlock]: When the passenger’s side door is unlocked	-
[Luggage Courtesy SW]	Trunk courtesy switch status Display range: OFF/ON	[OFF]: The trunk is closed. [ON]: The trunk is open.	-
[Ignition]	Status of the IG signal Display range: OFF/ON	[OFF]: IG OFF [ON]: IG ON	-
[ACC SW]	Status of the ACC signal Display range: OFF/ON	OFF: ACC OFF ON: ACC ON or IG ON	-
[BATT voltage (control)]	The sensor power input value of the main body ECM (multiplex network body ECM) is displayed. Display range: 0 to 21.5V	11 to 14 V	-
[BATT voltage (BACKUP) ]	The backup power input value of the main body ECM (multiplex network body ECM) is displayed. Display range: 0 to 21.5V	11 to 14 V	-
[ABS_CM Power Voltage]	The IG power input value of the main body ECM (multiplex network body ECM) is displayed. Display range: 0 to 21.5V	11 to 14 V	-
[ACC voltage]	The ACC power input value of the main body ECM (multiplex network body ECM) is displayed. Display range: 0 to 21.5V	11 to 14 V	-

ABS-VSC

Item Name	Description/display range	Normal value	Remarks
[Wheel speed]	This item indicates the vehicle speed. Display range: 0.0 to 326.4 [km/h]	0.0 to 326.4 [km/h] (Approximately the same as the actual vehicle speed)	-

(a) Turn the ignition switch to OFF.

(b) Connect the SSM3 to the DLC3.

(c) To display the [System Operation Check Mode] list, change the power mode to IG ON, and then select [Keyless access system] → [Collation ECM] → [Work Support] → [System Operation Check Mode] →, or select [Integ. unit mode] → [Work Support] → [System Operation Check Mode].

(d) Using the [System Operation Check Mode], identify if there is a problem or not, and narrow down the location of the problem.

Item Name	Drive	Drive
[Tuner power supply ON (indoor tuner)]	Output/stop	Inspects the power supplied to the receiver.
[Driver’s external transmitter]	Output/stop	Inspects the output to the driver’s seat door exterior antenna
[Passenger’s external transmitter]	Output/stop	Inspects the output to the passenger’s seat door exterior antenna
[Power/Engine SW Light]	Output/stop	Lights up the push engine switch back light.

DIAGNOSTIC TROUBLE CODE CHART

Item Name	Drive
[Door Lock]	[Lock]/[Unlock]
[Trunk and Back-Door Open]	ON/OFF
[Keyless Buzzer Output]	ON/OFF

DTC Code	Detection Item	DTC Output Confirmation Operation
B27A1	[Driver side external antenna output stage open]	Any time*
B27A2	[Passenger side external antenna output stage open]	Any time*
B27A5	[Front internal antenna output stage open]	Any time*
B27A6	[Rear internal antenna output stage open]	Any time*
B27A7	[Trunk/rear gate interior antenna output stage open]	Any time*
B27A8	[Trunk/rear gate external antenna output stage open]	Any time*

*: Only when the vehicle is stopped

DTC	B27A1	[Driver side external antenna output stage open]

The collation ECM (smart key ECM ASSY) generates a request signal and transmits it to the front door outer handle ASSY (driver’s side electrical key antenna) every 250 ms. In order for the collation ECM (smart key ECM ASSY) to detect the approach of the key towards the vehicle, a signal requesting a response from the key must be transmitted every 250 ms to an approximately 1 m (3.28 feet) wide area beside the driver’s door.

The DTC B27A1 is output by the collation ECM (smart key ECM ASSY) when an open circuit is detected between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (driver’s side electrical key antenna) (that is, between terminals CLG1 and ANT1, or between terminals CG1B and ANT2).

Diagnostic codes	Detecting conditions	Faulty part	Diagnostic code output check operation
B27A1	An open circuit is detected between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (CLG1-ANT1, CG1B-ANT2) by a failure detection circuit inside the collation ECM (smart key ECM ASSY) (1 trip detection logic*1).	·Wiring harness or connector ·Front door outer handle ASSY (driver’s side exterior antenna) ·collation ECM (smart key ECM ASSY)]	Always*2

*1: Output only when a failure is noted.
*2: Only when the vehicle is stopped

Current Data Display & Save / System Operation Check Mode

Vehicle status when a problem is detected	Failsafe operation upon failure detection
An entry lock/unlock operation does not work on the driver’s door.	-

DTC No.	[Current Data Display & Save]/[System Operation Check Mode]
B27A1	[Keyless access system check]

·Some functions of the entry & start system (entry function) use the LIN communication system and the CAN communication system. Inspect the communication function by referring to “How to troubleshoot” (refer to

). Confirm that the communication system is functioning properly before proceeding to repair the entry & start system (entry function).
·Refer to “Entry & start system (entry function)” before proceeding to replace the collation ECM (smart key ECM ASSY). (Refer to

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.
·An antenna coil is present between the ANT1 and ANT2 terminals of the front door outer handle ASSY (driver’s door)

1. Check if the connectors are connected.

(1) Turn the engine switch OFF.

(2) Check if the connectors are properly connected to the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY.

Criteria : The connectors are properly connected.

>Connect the connectors properly.

OK▼

2. Check the harnesses and connectors (front door outer handle ASSY - collation ECM (smart key ECM ASSY)).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the E1*1 or F5*2 front door outer handle ASSY connector.

·*1: For LHD
·*2: For RHD

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D41-12 (CLG1) - E1-6 (ANT1)	Always	1 Ω or less
D41-13 (CG1B) - E1-3 (ANT2)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-12 (CLG1) - chassis ground	Always	10 kΩ or more
D41-13 (CG1B) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-12 (CLG1) - F5-6 (ANT1)	Always	1 Ω or less
D41-13 (CG1B) - F5-3 (ANT2)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-12 (CLG1) - chassis ground	Always	10 kΩ or more
D41-13 (CG1B) - chassis ground	Always	10 kΩ or more

3. Inspect the collation ECM (smart key ECM ASSY) (output to the driver’s side electrical key antenna).

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform 1
*c	Waveform 2	-	-

(2) Reconnect the E1*1 or F5*2 front door outer handle ASSY connector.

Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to

)

Criteria

Tester connection	Switch conditions	Tool setting	Specified condition
D41-12 (CLG1) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is inside the detection area*1. 6. All doors are locked by a wireless operation.	2 V/DIV., 500 ms/DIV.	Pulse generation (Refer to waveform 1)
D41-12 (CLG1) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*2. 6. All doors are locked by a wireless operation.	2 V/DIV., 500 ms/DIV.	Pulse generation (Refer to waveform 1)
D41-13 (CG1B) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. All doors are locked using the electrical key transmitter SUB-ASSY.	2 V/DIV., 500 ms/DIV.	Pulse generation (Refer to waveform 2)

*1: For a detailed description on inside the entry function detection area, refer to “Operation check”. (Refer to

)
*2: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

)

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

4. Replace the front door outer handle ASSY (driver’s door).

(1) Temporarily replace the front door outer handle ASSY with a new one or one that functions normally. (Refer to

)

Next▼

5. DTC check

(1) Clear the diagnostic code. (Refer to

)

(2) Recheck the diagnostic code. (Refer to

)

Criteria : B27A1 is not output.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (front door outer handle ASSY malfunction)

DTC	B27A2	[Passenger side external antenna output stage open]

Circuit description

The collation ECM (smart key ECM ASSY) generates a request signal and transmits it to the front door outer handle ASSY (passenger’s side electrical key antenna) every 250 ms. In order for the collation ECM (smart key ECM ASSY) to detect the approach of the key towards the vehicle, a signal requesting a response from the key must be transmitted every 250 ms to an approximately 1 m ( 3.28 feet) wide area beside the passenger’s door.

The DTC B27A2 is saved by the collation ECM (smart key ECM ASSY) when an open circuit is detected between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (passenger’s side electrical key antenna) (that is, between terminals CLG2 and ANT1, or between terminals CG2B and ANT2).

Diagnostic codes	Detecting conditions	Faulty part	Diagnostic code output check operation
B27A2	An open circuit is detected in the circuit located between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (CLG2-ANT1, CG2B-ANT2).	·Wiring harness or connector ·Front door outer handle ASSY LH (passenger’s door) ·Collation ECM (smart key ECM ASSY)	Always*1

*1: Only when the vehicle is stopped

[Current Data Display & Save]/[System Operation Check Mode]

Vehicle status when a problem is detected	Failsafe operation upon failure detection
An entry lock/unlock operation does not work on the passenger’s door.	-

DTC No.	[Current Data Display & Save]/[System Operation Check Mode]
B27A2	[Keyless access system check]

). Confirm that the communication system is functioning properly before proceeding to repair the entry & start system (entry function).
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Check if the connectors are connected.

(1) Turn the engine switch OFF.

(2) Check if the connectors are properly connected to the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY.

Criteria : The connectors are properly connected.

>Connect the connectors properly.

OK▼

2. Check the harnesses and connectors (front door outer handle ASSY - collation ECM (smart key ECM ASSY)).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the F5*1 or E1*1 front door outer handle ASSY connector.

·*1: For LHD
·*2: For RHD

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D41-11 (CLG2) - F5-6 (ANT1)	Always	1 Ω or less
D41-10 (CG2B) - F5-3 (ANT2)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-11 (CLG2) - chassis ground	Always	10 kΩ or more
D41-10 (CG2B) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-11 (CLG2) - E1-6 (ANT1)	Always	1 Ω or less
D41-10 (CG2B) - E1-3 (ANT2)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-11 (CLG2) - chassis ground	Always	10 kΩ or more
D41-10 (CG2B) - chassis ground	Always	10 kΩ or more

3. Inspect the collation ECM (smart key ECM ASSY) (output to the passenger’s side electrical key antenna).

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform 1
*c	Waveform 2	-	-

(2) Reconnect the F5*1 or E1*1 front door outer handle ASSY connector.

Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to

)

Criteria

Tester connection	Switch conditions	Tool setting	Specified condition
D41-11 (CLG2) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is inside the detection area*1. 6. All doors are locked by a wireless operation.	2 V/DIV., 500 ms/DIV.	Pulse generation (Refer to waveform 1)
D41-11 (CLG2) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*2. 6. All doors are locked by a wireless operation.	2 V/DIV., 500 ms/DIV.	Pulse generation (Refer to waveform 1)
D41-10 (CG2B) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. All doors are locked using the electrical key transmitter SUB-ASSY.	2 V/DIV., 500 ms/DIV.	Pulse generation (Refer to waveform 2)

*1: For a detailed description on inside the entry function detection area, refer to “Operation check”. (Refer to

)
*2: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

)

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

4. Replace the front door outer handle ASSY (passenger’s door).

(1) Temporarily replace the front door outer handle ASSY with a new one or one that functions normally. (Refer to

)

Next▼

5. DTC check

(1) Clear the diagnostic code. (Refer to

)

(2) Recheck the diagnostic code. (Refer to

)

Criteria : The DTC B27A2 is not output.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (front door outer handle ASSY malfunction)

DTC	B27A5	[Front internal antenna output stage open]

Circuit description

The collation ECM (smart key ECM ASSY) generates a request signal and transmits it to the indoor electrical key antenna ASSY no. 1 (front floor). For the collation ECM (smart key ECM ASSY) to detect the key located inside the vehicle, the collation ECM (smart key ECM ASSY) must transmit a signal to the inside of the vehicle requesting a response from the key. The DTC B27A5 is saved by the collation ECM (smart key ECM ASSY) when an open circuit is detected between the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 1 (front floor) (that is, between terminals CLG5 and ANTE5, or between terminals CG5B and CLGB).

Diagnostic codes	Detecting conditions	Faulty part	Diagnostic code output check operation
B27A5	An open circuit is detected in the circuit located between the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 1 (rear floor). (CLG5-ANTE5, CG5B -CLGB) (1 trip detection logic*1).	·Wiring harness or connector ·Indoor electrical key antenna ASSY no. 1 (front floor) ·Collation ECM (smart key ECM ASSY)	Always*2

*1: Output only when a failure is noted.
*2: Only when the vehicle is stopped

Current Data Display & Save / System Operation Check Mode

Vehicle status when a problem is detected	Failsafe operation upon failure detection
If the key is located in the front seat area: ·Even if you press the engine switch, the power mode does not change. ·You could end up locking doors with the key left inside the vehicle.	-

DTC No.	[Current Data Display & Save]/[System Operation Check Mode]
B27A5	[Keyless access system check]

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.
·An antenna coil is provided between the terminals ANTES and CLGB in the indoor electrical key antenna ASSY No. 1 (front floor).

1. Check if the connectors are connected.

(1) Turn the engine switch OFF.

(2) Check if the connectors are properly connected to the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 1.

Criteria : The connectors are properly connected.

>Connect the connectors properly.

OK▼

2. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - indoor electrical key antenna no. 1 (front floor)).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the D26 indoor electrical key antenna ASSY no. 1 (front floor) connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D41-3 (CLG5) - D26-1 (CLG5)	Always	1 Ω or less
D41-2 (CG5B) - D26-3 (CLGB)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-3 (CLG5) - chassis ground	Always	10 kΩ or more
D41-2 (CG5B) - chassis ground	Always	10 kΩ or more

3. Inspect the collation ECM (smart key ECM ASSY) (output to the indoor electrical key antenna no. 1 (front floor)).

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	Within 30 seconds of the closing of a door	*d	30 seconds after the closing of a door

(2) Reconnect the D26 indoor electrical key antenna ASSY no. 1 (front floor) connector.

Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to

)

Criteria

Inspection terminals	Switch conditions	Tool setting	Specified condition
D41-3 (CLG5) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. A door is open. 3. A door is closed. 4. 30 seconds elapses. 5. The electrical key transmitter SUB-ASSY is not inside the vehicle.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)
D41-2 (CG5B) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. A door is open. 3. A door is closed. 4. 30 seconds elapses. 5. The electrical key transmitter SUB-ASSY is not inside the vehicle.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

>Replacement of the collation ECM (smart key computer ASSY)

4. Replace the indoor electrical key antenna ASSY no. 1 (front floor).

(1) Temporarily replace the indoor electrical key antenna ASSY no. 1 (front floor) with a new one or one that functions normally.

(1) Clear the diagnostic code. (Refer to

5. DTC check

)

(2) Recheck the diagnostic code. (Refer to

)

Criteria : The DTC B27A5 is not output.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (indoor electrical key antenna ASSY no. 1 (front floor) malfunction)

DTC	B27A6	[Rear internal antenna output stage open]

Circuit description

The collation ECM (smart key ECM ASSY) generates a request signal and transmits it to the indoor electrical key antenna ASSY no. 2 (rear floor)] For the indoor electrical key antenna ASSY no. 2 (rear floor) to detect the electrical key transmitter SUB-ASSY located inside the vehicle, the collation ECM (smart key ECM ASSY) must transmit a signal to the inside of the vehicle requesting a response from the electrical key transmitter SUB-ASSY. The DTC B27A6 is saved by the collation ECM (smart key ECM ASSY) when an open circuit is detected between the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 2 (rear floor) (that is, between terminals CLG6 and ANTE6, or between terminals CG6B and CLGB).

Diagnostic codes	Detecting conditions	Faulty part	Diagnostic code output check operation
B27A6	An open circuit is detected in the circuit located between the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 2 (rear floor). (CLG6-ANTE6, CG6B-CLGB) (1 trip detection logic*)	·Wiring harness or connector ·Indoor electrical key antenna ASSY no. 2 (rear floor) ·Collation ECM (smart key ECM ASSY)	Always

*: Output only when a failure is noted.

[Current Data Display & Save]/[System Operation Check Mode]

Vehicle status when a problem is detected	Failsafe operation upon failure detection
If the electrical key transmitter SUB-ASSY is located in the rear seat area: ·Even if you press the engine switch, the power mode does not change. ·The electrical key transmitter SUB-ASSY is inside the vehicle.	-

DTC code	[Current Data Display & Save]/[System Operation Check Mode]
B27A6	[Keyless access system check]

·Some functions of the entry & start system (entry function) use the multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by referring to “How to troubleshoot” (refer to

). Confirm that the communication system is functioning properly before proceeding to repair the entry & start system (entry function).
·Refer to the notes provided under “Entry & start system (entry function)” before proceeding to replace the collation ECM (smart key ECM ASSY). (Refer to

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the diagnostic code is not output again.
·An antenna coil is present between the ANTE6 and CLGB terminals of the indoor electrical key antenna ASSY no. 2 (rear floor).

1. Check if the connectors are connected.

(1) Turn the engine switch OFF.

(2) Check if the connectors are properly connected to the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 2 (rear floor).

Criteria : The connectors are properly connected.

>Connect the connectors properly.

OK▼

2. Check the harnesses and connectors (collation ECM - indoor electrical key antenna ASSY no. 2).

(1) Disconnect the D40 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the H15 indoor electrical key antenna ASSY no. 2 (rear floor) connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D40-11 (CLG6) - H15-1 (ANTE6)	Always	1 Ω or less
D40-10 (CG6B) - H15-3 (CLGB)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D40-11 (CLG6) - chassis ground	Always	10 kΩ or more
D40-10 (CG6B) - chassis ground	Always	10 kΩ or more

3. Check the collation ECM (smart key ECM ASSY) (output to the indoor electrical key antenna ASSY no. 2).

(1) Reconnect the D40 and the D48 connectors of the collation ECM (smart key ECM ASSY).

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	Within 30 seconds of the closing of a door	*d	30 seconds after the closing of a door

(2) Reconnect the D15 indoor electrical key antenna ASSY no. 2 (rear floor) connector.

>Replacement of the collation ECM (smart key computer ASSY)

Inspection terminals	Switch conditions	Tool setting	Specified condition
D40-11 (CLG6) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)
D40-10 (CG6B) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. A door is open. 4. A door is closed. 5. Within 30 seconds	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

4. Replace the indoor electrical key antenna ASSY no. 2 (rear floor).

(1) Temporarily replace the indoor electrical key antenna ASSY no. 2 (rear floor) with a new one or one that functions normally. (Refer to

)

Next▼

5. DTC check

(1) Clear the diagnostic code. (Refer to

)

(2) Check for DTC. (Refer to

)

Criteria : The DTC B27A6 is not output.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (indoor electrical key antenna ASSY no. 2 (rear floor) malfunction).

DTC	B27A7	[Trunk/rear gate internal antenna output stage open]

Circuit description

The collation ECM (smart key ECM ASSY) generates a request signal and transmits it to the indoor electrical key antenna ASSY no. 3 (trunk interior antenna). For the collation ECM (smart key ECM ASSY) to detect the key located inside the trunk, the collation ECM (smart key ECM ASSY) must transmit a signal requesting a response from the key to the inside of the trunk. The DTC B27A7 is saved by the collation ECM (smart key ECM ASSY) when an open circuit is detected between the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 3 (trunk interior antenna) (that is, between terminals CLG7 and CLG7, or between terminals CG7B and CLGB).

Diagnostic codes	Detecting conditions	Faulty part	Diagnostic code output check operation
B27A7	An open circuit is detected in the circuit located between the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 3 (trunk interior antenna). (CLG7-ANTE7, CG7B -CLGB) (1 trip detection logic*1).	·Wiring harness or connector ·Indoor electrical key antenna ASSY No. 3 (trunk) ·Collation ECM (smart key ECM ASSY)	Always*2

*1: Output only when a failure is noted.
*2: Only when the vehicle is stopped

[Current Data Display & Save]/[System Operation Check Mode]

Vehicle status when a problem is detected	Failsafe operation upon failure detection
If the key is located in the trunk: ·Even if you press the engine switch, the power mode does not change. ·You could end up locking doors with the key left inside the vehicle.	-

DTC No.	[Current Data Display & Save]/[System Operation Check Mode]
B27A7	[Keyless access system check]

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.
·An antenna coil is present between the ANTE7 and CLGB terminals of the indoor electrical key antenna ASSY no. 3 (trunk interior antenna).

1. Check if the connectors are connected.

(1) Turn the engine switch OFF.

(2) Check if the connectors are properly connected to the collation ECM (smart key ECM ASSY) and the indoor electrical key antenna ASSY no. 3 (trunk interior antenna).

Criteria : The connectors are properly connected.

>Connect the connectors properly.

OK▼

2. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - indoor electrical key antenna ASSY no. 3).

(1) Disconnect the D40 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the H9 indoor electrical key antenna ASSY no. 3 (trunk interior antenna) connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D40-9 (CLG7) - H9-1 (ANTE7)	Always	1 Ω or less
D40-8 (CG7B) - H9-3 (CLGB)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D40-9 (CLG7) - chassis ground	Always	10 kΩ or more
D40-8 (CG7B) - chassis ground	Always	10 kΩ or more

3. Inspect the collation ECM (smart key ECM ASSY) (output to the indoor electrical key antenna ASSY no. 3 (luggage interior antenna)).

(1) Reconnect the D40 and the D48 connectors of the collation ECM (smart key ECM ASSY).

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	Within 30 seconds of the closing of a door	d	30 seconds after the closing of a door

(2) Reconnect the H9 indoor electrical key antenna ASSY no. 3 (trunk interior antenna) connector.

Check the customize setting available for the entry & start system as well as the “ignition available area”. (Refer to

)

Criteria

Inspection terminals	Switch conditions	Tool setting	Specified condition
D40-9 (CLG7) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. A door is open. 3. A door is closed. 4. 30 seconds elapses. 5. The electrical key transmitter SUB-ASSY is not inside the vehicle.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)
D40-8 (CG7B) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. A door is open. 3. A door is closed. 4. 30 seconds elapses. 5. The electrical key transmitter SUB-ASSY is not inside the vehicle.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

>Replacement of the collation ECM (smart key computer ASSY)

4. Replacement of the indoor electrical key antenna ASSY no. 3 (trunk interior antenna)

(1) Temporarily replace the indoor electrical key antenna ASSY no. 3 (trunk interior antenna) with a new one or one that functions normally. (Refer to

)

Next▼

5. Do a DTC check again.

(1) Clear the diagnostic code. (Refer to

)

(2) Recheck the diagnostic code. (Refer to

)

Criteria : B27A7 is not output.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (indoor electrical key antenna ASSY no. 3 (trunk interior antenna) malfunction)

DTC	B27A8	[Trunk/rear gate external antenna output stage open]

Circuit description

The collation ECM (smart key ECM ASSY) generates a request signal and transmits it to the electrical key antenna ASSY (trunk exterior antenna). In order for the collation ECM (smart key ECM ASSY) to detect the approach of the electrical key transmitter SUB-ASSY towards the vehicle, the request signal received must be transmitted to an approximately 1.0 m (3.28 feet) wide area beside the trunk. The DTC B27A8 is saved by the collation ECM (smart key ECM ASSY) when an open circuit is detected between the collation ECM (smart key ECM ASSY) and the electrical key antenna (trunk exterior antenna) (that is, between terminals CLG8 and ANT1, or between terminals CG8B and ANT2).

Diagnostic codes	Detecting conditions	Faulty part	Diagnostic code output check operation
B27A8	An open circuit is detected in the circuit located between the collation ECM (smart key ECM ASSY) and electrical key antenna ASSY (trunk exterior antenna). (CLG8 -ANT1, CG8B -ANT2) (1 trip detection logic*1).	·Wiring harness or connector ·Electrical key antenna (trunk exterior) ·Collation ECM (smart key ECM ASSY)	Always*2

*1: Output only when a failure is noted.
*2: Only when the vehicle is stopped

Current Data Display & Save / System Operation Check Mode

Vehicle status when a problem is detected	Failsafe operation upon failure detection
An entry lock/unlock operation does not work on the trunk.	-

DTC No.	[Current Data Display & Save]/[System Operation Check Mode]
B27A8	[Keyless access system check]

1. Check if the connectors are connected.

(1) Turn the engine switch OFF.

(2) Check if the connectors are properly connected to the collation ECM (smart key ECM ASSY) and the electrical key antenna (trunk exterior antenna).

Criteria : The connectors are properly connected.

>Connect the connectors properly.

OK▼

2. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - electrical key antenna (trunk exterior antenna)).

(1) Disconnect the D40 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the H3 electrical key antenna (trunk exterior antenna) connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D40-2 (CLG8) - H3-1 (ANT1)	Always	1 Ω or less
D40-1 (CG8B) - H3-2 (ANT2)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D40-2 (CLG8) - chassis ground	Always	10 kΩ or more
D40-1 (CG8B) - chassis ground	Always	10 kΩ or more

3. Inspect the electrical key antenna (trunk exterior antenna) unit.

(1) Remove the electrical key antenna (trunk exterior antenna). (Refer to

)

(2) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
1 (CLG8) - 2 (CLGB)	Always	1 Ω or less

>Replace the electrical key antenna (trunk exterior antenna).

*a	Connector not connected (Electrical key antenna (trunk exterior antenna))

4. Replacement of the collation ECM (smart key computer ASSY)

(1) Temporarily replace the collation ECM (smart key ECM ASSY) with a new one or one that functions normally.

(1) Clear the diagnostic code. (Refer to

5. DTC check

)

(2) Recheck the diagnostic code. (Refer to

)

Criteria : B27A8 is not output again.

>Replace the electrical key antenna (trunk exterior antenna).

OK▼

END (collation ECM (smart key ECM ASSY) malfunction)

The exterior alarm and answer-back buzzer of the smart entry system do not go off

Circuit description

The entry & start system uses the wireless door lock buzzer to provide various exterior warnings. When the specific conditions for each waning are met, the collation ECM (smart key ECM ASSY) transmits a buzzer signal to the main body ECM via the CAN communication. The main body ECM then transmits the signal to the wireless door lock buzzer to sound the buzzer.

Circuit figure

Inspection steps

CAUTION:

)

1. Using the SSM3, execute [System Operation Check Mode] (wireless buzzer).

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Enter the following menu items: [Integ. unit mode] → [Work Support] → [System Operation Check Mode].

(5) Based on the information displayed by the SSM3, execute [System Operation Check Mode].

Tester display	Tested parts	Control range	Notes for diagnosis
[Keyless Buzzer Output]	Wireless door lock buzzer	OFF/ON	-

>Go to Step 2.

Replacement of the collation ECM (smart key computer ASSY)

2. Inspect the wireless door lock buzzer unit.

(1) Remove the wireless door lock buzzer. (Refer to

)

(2) Inspect the wireless door lock buzzer unit.

>Replace the wireless door lock buzzer.

OK▼

3. Check the harnesses and connectors (main body ECM - wireless door lock buzzer and chassis ground).

(1) Disconnect the A63 wireless door lock buzzer connector.

(2) Disconnect the A73 main body ECM (multiplex network body ECM) connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
A63-1 - A73-1	Always	1 Ω or less
A63-2 - Chassis ground	Always	1 Ω or less
A63-1 - Chassis ground	Always	10 kΩ or more

Replace the main body ECM (multiplex network body ECM).

Neither smart lock nor smart unlock operation works on any of the doors (wireless function does not work either).

If neither the entry door lock/unlock function nor the wireless door lock/unlock function works, it might be due to interference from external radio waves, or due to a defect in the key or a signal circuit located between the door control receiver and the collation ECM (smart key ECM ASSY). The signal circuit is shared by the entry function and the wireless door lock function.

)
·Check if the electrical key transmitter SUB-ASSY is inside the vehicle.
·Before proceeding with the inspection procedure, check that the DTC B1242 (wireless door lock control) is not output. (Refer to

)
·Before performing the following inspection steps, check the fuses related to this system.
·Even if you want to check the entry lock operation several times, the setting does not allow you to perform the lock operation more than 2 times in a row (except for EK/ER) To perform the entry lock operation more than twice, you have to unlock a door once (you may use any type of unlock operation). This limitation applies only to the entry lock operation. A wireless lock or other types of lock operations can be performed any number of times without any limitations.
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.
·The door control receiver is supplied 5 volts of power from the collation ECM.

1. Check the battery voltage.

(1) Measure the voltage of the vehicle battery.

Standard voltage : 11 to 14 V

NOTE:

You can check if the vehicle battery is discharged by operating the horn. If the voltage is 1.1 V or less, charge or replace the vehicle battery before performing the operation.

Next▼

2. DTC check

(1) Using the mechanical key integrated into the electrical key transmitter SUB-ASSY, open the driver’s door.

(2) Connect the SSM3 and check the DTC. (Refer to

)

Criteria : No DTC is output

>Go to “List of diagnostic codes” (refer to

OK▼

3. Check the power door lock control system.

(1) Operate the door control switch on the driver’s side power window regulator master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed.

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system”.

OK▼

4. Check the electrical key transmitter SUB-ASSY.

(1) Check if an electrical key transmitter SUB-ASSY registered to another vehicle is present.

Result

Result	Go to
An electrical key transmitter SUB-ASSY registered to another vehicle is not present.	A
An electrical key transmitter SUB-ASSY registered to another vehicle is present.	B

> Go to Step 6.

5. Register a new electrical key transmitter SUB-ASSY.

(1) Register a new electrical key transmitter SUB-ASSY. (Refer to the “immobilizer registration manual”)

(1) Using another electrical key transmitter SUB-ASSY registered to the vehicle, check if an entry lock/unlock operation can be performed 2 or more times in a row.

6. Check the entry door lock operation.

Criteria : The entry lock/unlock operation can be performed properly.

> Go to Step 9.

(1) Check the transmitter battery level of the first electrical key transmitter SUB-ASSY checked.

7. Check the transmitter battery.

(a) Hold down the lock switch on the transmitter for 5 seconds and check how many times the LED on the transmitter blinks.

Result	Go to
The LED on the transmitter does not light up while the switch is held down.	A
The LED on the transmitter blinks 3 times while the switch is held down.	B
The LED on the transmitter blinks twice but not for the third time.	C

·While in use, the electrical key transmitter SUB-ASSY transmits voltage information to the collation ECM (smart key ECM ASSY). If the voltage is 2.4 V or lower, the collation ECM (smart key ECM ASSY) displays [Yes] for [Key Low Battery] (an item under [Current Data Display & Save]). (Refer to

)
·To start the engine when the transmitter battery is drained, depress the brake pedal, hold down the engine switch, and place the electrical key transmitter SUB-ASSY over the engine switch.

>Replacement of the electrical key transmitter SUB-ASSY

>Replace the transmitter battery.

A▼

8. Inspect the transmitter battery unit (voltage).

(1) Remove the transmitter battery from the faulty electrical key transmitter SUB-ASSY. (Refer to

)

(2) Using tape or the like, attach the lead wire (0.60 mm or less in diameter, including the wire sheath) to the negative terminal.

Lead wire

Do not twist the lead wire around the terminal, tuck it into the terminal, or solder it to the terminal. If the terminal is deformed or damaged, the transmitter battery cannot be properly installed.

(3) Carefully pull the lead wire out from the position shown in the figure, and insert the previously removed transmitter battery.

(4) Measure the voltage of the transmitter battery.

GND

·Measure the transmitter battery voltage by bringing the electrical key transmitter SUB-ASSY inside the lock entry operating range while operating the lock sensor on the door handle.
·Perform this measurement when the key is at the room temperature.
·During signal transmission, the key transmits voltage information to the collation ECM (smart key ECM ASSY). If the voltage is 2.4 V or lower, [Yes] is displayed for [Key Low Battery] (an item under [Current Data Display & Save]). (Refer to

)

Voltage

Inspection terminals	Switch conditions	Specified condition
Transmitter battery positive terminal (+) - transmitter battery negative terminal (-)	Change the power mode to IG OFF, close all doors, and touch the lock sensor.	2.5 - 3.2V

>Replace the transmitter battery.

Replacement of the electrical key transmitter SUB-ASSY

9. Checking the waveform environment

(1) Move the electrical key transmitter SUB-ASSY towards the door control receiver and check that the wireless and entry functions work properly.

·Try moving the electrical key transmitter SUB-ASSY closer to the door control receiver, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not.
·If this inspection reveals that the problem occurs in certain locations or during certain periods of time, the problem is likely due to interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation.
·Being close to a broadcast antenna, a large video display, a wireless garage door opener system, a wireless security camera, or a home security system makes the vehicle susceptible to interference from external radio waves. If this is the case, move the vehicle to another location to check if the problem improves.
·If a tool for checking radio waves such as a signal-strength meter is available, take measurements in the LF band (which is used by the vehicle antenna to create a detection area) and the RF band (which is used by the electrical key transmitter SUB-ASSY for signal transmission) in the vicinity of the vehicle to check where the radio waves might be present.

Criteria : Both the wireless and entry functions work properly.

> Go to Step 10.

Interference from external radio waves

10. Read numerical values using the SSM3 ([ACC SW], [Ignition].

(4) Enter the following menu items: [Integ. unit mode] → [Current Data Display & Save].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

>Refer to the troubleshooting procedure for the main body ECM (refer to

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[ACC SW]	The engine switch is ON (ACC)/OFF or ON.	OFF: The engine switch is OFF. ON: Engine switch is ON (ACC).	-
[Ignition]	The engine switch is ON (IG)/[OFF] or [ON]	OFF: The engine switch is OFF. [ON]: Engine switch is ON (IG).	-

OK▼

11. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - battery and chassis ground).

(1) Disconnect the D48 collation ECM (smart key ECM ASSY) connector.

(2) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D48-11 (GND) - chassis ground	Always	1 Ω or less

(3) Measure the voltage according to the following table.

Voltage

Inspection terminals	Inspection conditions	Standard value
D48-2 (+B) - chassis ground	Always	11 - 14V

(4) Reconnect the D48 connector of the collation ECM (smart key ECM ASSY).

*a	Front side of vehicle wiring harness connector (See “collation ECM (smart key ECM ASSY)”)

12. Check the harnesses and connectors (collation ECM - door control receiver).

(1) Disconnect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Disconnect the H26 door control receiver connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D40-5 (RCO) - H26-4 (+5)	Always	1 Ω or less
D40-17 (RDAS) - H26-5 (DATA)	Always	1 Ω or less
D40-19 (RSSI) - H26-2 (RSSI)	Always	1 Ω or less
D40-5 (RCO) - chassis ground	Always	10 kΩ or more
D40-17 (RDAS) - chassis ground	Always	10 kΩ or more
D40-19 (RSSI) - chassis ground	Always	10 kΩ or more

13. Inspect the door control receiver unit.

(1) Reconnect the H26 door control receiver connector.

(2) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
H26-1 (GND) - chassis ground	Always	1 Ω or less

(3) Reconnect the D48 connector of the collation ECM (smart key ECM ASSY).

*a	Connector connected (Door control receiver)

>Replace the door control receiver.

14. Unit inspection of the collation ECM (smart key ECM ASSY)

(1) Reconnect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Measure the voltage according to the following table.

(3) Measure the voltage according to the following table.

Inspection terminals	Inspection conditions	Standard value
D48-11 (GND) - chassis ground	Always	1 Ω or less

Voltage

Inspection terminals	Inspection conditions	Standard value
H26-4 (+5) - H26-1 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not pressed.	1 V or less
H26-4 (+5) - H26-1 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is pressed.	4.5 - 5.5V

>Replacement of the collation ECM (smart key computer ASSY)

*a	Connector connected (Door control receiver)

15. Inspect the door control receiver unit.

(1) Measure the voltage according to the following table.

Voltage

Inspection terminals	Inspection conditions	Standard value
H26-2 (RSSI) - H26-1 (GND)	Procedure: 1. All doors are closed. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is not pressed.	11 - 14V
H26-2 (RSSI) - H26-1 (GND)	Procedure: 1. All doors are closed. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is pressed.	2 V or less
H26-5 (DATA) - H26-1 (GND)	Procedure: 1. All doors are closed. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is not pressed.	11 - 14V
H26-5 (DATA) - H26-1 (GND)	Procedure: 1. All doors are closed. 2. All doors are locked. 3. The electrical key transmitter SUB-ASSY is pressed.	11 to 14 V → 2 V or less → 11 to 14 V, pulses generated at normal time intervals

>Replace the door control receiver.

*a	Connector connected (Door control receiver)

16. Replacement of the collation ECM (smart key computer ASSY)

(1) Temporarily replace the collation ECM (smart key ECM ASSY) with a new one.

When replacing the collation ECM (smart key ECM ASSY), it is also necessary to replace all the electrical key transmitter SUB-ASSYs.

17. Check the wireless door lock control system.

(1) Check that the wireless door lock function operates properly. (Refer to

)

Criteria : The wireless door lock function operates properly.

>Replace the main body ECM (multiplex network body ECM).

OK▼

END (collation ECM (smart key ECM ASSY) detected)

Neither smart lock nor smart unlock operation works from any of the doors (but the wireless function works)

Circuit description

When doors can be locked or unlocked using the wireless function, it means that the door control receiver and the collation ECM (smart key ECM ASSY) are communicating normally. If the entry function does not work, it may be due to one of the following: 1) the entry cancel function is enabled by customization; 2) the entry & start system communication between the electrical key transmitter SUB-ASSY and the vehicle is faulty, or; 3) electrical interference is present.

Inspection steps

CAUTION:

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.
·Check if the electrical key transmitter SUB-ASSY is inside the vehicle.
·Even if you want to check the entry lock operation several times, the setting does not allow you to perform the lock operation more than 2 times in a row (except for EK/ER) To perform the entry lock operation more than twice, you have to unlock a door once (you may use any type of unlock operation). This limitation applies only to the entry lock operation. A wireless lock or other types of lock operations can be performed any number of times without any limitations.

1. Check the power door lock operation.

(1) Operate the door control switch on the power window regulator master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to

)

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Read numerical values using the SSM3 ([Auto Entry Cancel SW]).

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Enter the following menu items: [Keyless access system check] → [Collation ECM] → [Current Data Display & Save].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Smart Cancel]	Entry cancel function setting/[OFF] or [ON]	Mode status indication [OFF]: Entry & start system is not cancelled. [ON]: Entry & start system is cancelled.	The entry cancel function is disabled by default. If the customer wishes to cancel the entry & start system function (lock/unlock doors holding the key, etc.), you can disable this function by using the customize function (refer to ).

>Disable the entry key cancel function. (Refer to

Result	Go to
The cancel setting for the entry function is disabled.	A
The cancel setting for the entry function is enabled.	B

)

A▼

3. Checking radio wave environment

(1) Move the electrical key transmitter SUB-ASSY according to the instructions provided below to inspect the operation. (Refer to

)

NOTE:

·Try moving the electrical key transmitter SUB-ASSY closer to the door outer handle ASSY or the electrical key antenna, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not.
·Although the wireless function and the entry function transmits the same radio wave, the wave logic differs between the two. Due to this, only one of the two functions may be affected by interference from external radio waves, while the other remains unaffected.

(2) Move the electrical key transmitter SUB-ASSY towards the driver’s door outer handle ASSY and check how the entry lock and unlock operations work on the driver’s door.

CAUTION:

If the key is within 0.2 m of the door outer handle ASSY, communication is not possible.

(3) Move the electrical key transmitter SUB-ASSY towards the passenger’s door outer handle ASSY and check how the entry lock and unlock operations work on the passenger’s door.

*A	For LHD
*B	For RHD
*a	Approx. 0.3 m

If the key is within 0.2 m of the door outer handle ASSY, communication is not possible.

(4) Move the electrical key transmitter SUB-ASSY toward the electrical key antenna (trunk exterior antenna) and check the entry trunk open function.

*A	For LHD
*B	For RHD
*a	Approx. 0.3 m

If the key is within 0.2m (0.656 feet) of the rear bumper, communication is not possible.

*a	Approx. 0.3 m

·If this inspection reveals that the problem occurs in certain locations or during certain periods of time, the problem is likely due to interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation.
·If interference from external radio waves is suspected, inquire the customer if the problem occurs in certain locations.
·Move the vehicle to another location and perform the following procedure to check if the problem improves.
·If a tool for checking radio waves such as a signal-strength meter is available, take measurements in the LF band (which is used by the vehicle antenna to create a detection area) and the RF band (which is used by the electrical key transmitter SUB-ASSY for signal transmission) in the vicinity of the vehicle to check where the radio waves might be present.

>Interference from external radio waves

Result	Go to
All operation checks fail.	A
All operation checks pass.	B
One of the operation checks passes.	C

>Proceed to check other problems (check each door using the symptom table) (refer to

OK▼

4. Perform the keyless access system check.

(1) Perform keyless access system check for the following antennas. (Refer to

)

(a) Check the electrical key antenna (driver’s door):

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is within 0.7 - 1 m of the front door outer handle ASSY (driver’s door).

*A	For LHD
*B	For RHD
*a	0.7 - 1.0m

(b) Check the electrical key antenna (passenger’s door):

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is within 0.7 - 1 m of the front door outer handle ASSY (passenger’s door).

*A	For LHD
*B	For RHD
*a	0.7 - 1.0m

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located at the inspection points.

*a	Inspection point

(d) Check the indoor electrical key antenna no. 2 (rear floor):

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located at the inspection points.

*a	Inspection point

(e) Check the electrical key antenna (trunk exterior antenna).

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is within 0.7 - 1 m of the electrical key antenna (trunk exterior antenna).

*a	0.7 - 1.0m

>Proceed to check other problems (check each door using the symptom table) (refer to

Result	Go to
Failed all diagnostic mode unit inspections.	A
Failed some diagnostic mode unit inspections (door).	B
Failed some diagnostic mode unit inspections (indoor).	C
Failed some diagnostic mode unit inspections (outdoor).	D
Passed all diagnostic mode unit inspections.	E

>Proceed to check other problems (“ROOM OSCILLATOR DOES NOT RECOGNIZE KEY”) (refer to

>Proceed to check other problems (“BACK DOOR ENTRY LOCK AND UNLOCK FUNCTIONS DO NOT OPERATE”) (refer to

>Replacement of the collation ECM (smart key ECM ASSY)

OK▼

5. Inspect the electrical key transmitter SUB-ASSY unit.

(1) Check if other keys already registered to the vehicle can be used.

Result

Result	Go to
No other keys are registered to the vehicle.	A
Other keys are registered to the vehicle.	B

> Go to Step 7.

6. Check the smart door lock system operation.

(1) Register an electrical key transmitter SUB-ASSY. (Refer to the “immobilizer registration manual”)

7. Check the electrical key transmitter SUB-ASSY (operation).

(1) Check if the entry function works properly. (Refer to

)

Criteria : The entry function works properly.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (electrical key transmitter SUB-ASSY malfunction)

Smart unlock operation does not work from the driver’s door (but smart lock operation works)

Circuit description

If the driver’s door unlock function does not work but the entry lock function works properly, the communication between the vehicle and the electrical key transmitter SUB-ASSY is normal. In this case, the problem might be caused by a defect in the unlock sensor circuit between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (driver’s side electrical key antenna).

Circuit figure

Inspection steps

CAUTION:

·Some functions of the entry & start system (entry function) use the LIN communication system and the CAN communication system. Refer to “How to troubleshoot” (entry function). Inspect the communication function by referring to

. Confirm that the communication system is functioning properly before proceeding to repair the entry & start system (entry function).
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

)
·Check if the electrical key transmitter SUB-ASSY is inside the vehicle.
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.
·Even if you want to check the entry lock operation several times, the setting does not allow you to perform the lock operation more than 2 times in a row (except for EK/ER) To perform the entry lock operation more than twice, you have to unlock a door once (you may use any type of unlock operation). This limitation applies only to the entry lock operation. A wireless lock or other types of lock operations can be performed any number of times without any limitations.

1. Check the power door lock operation.

(1) Operate the door control switch on the power window regulator master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to

)

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Read numerical values using the SSM3.

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Enter the following menu items: [Integ. unit mode] → [Current Data Display & Save].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : On the SSM3 display, [Lock] or [Unlock] is displayed as described in the table above.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[D Door Lock Pos]	Driver’s door unlock detection switch signal/Lock or Unlock	Lock: Driver’s door is closed Unlock: Driver’s door is locked	-

>Go to “Light system” (door unlock detection switch circuit).

3. Read numerical values using the SSM3.

(4) Input the following menus: [Keyless access system] → [Collation ECM] → [Current Data Display & Save]

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : On the SSM3 display, [ON] or [OFF] is displayed as described in the table above.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[D seat unlock person sensor]	Front door outer handle ASSY (driver’s side) (unlock sensor)/[OFF] or [ON]	[OFF]: The front door outer handle ASSY (driver’s side) (unlock sensor) is not touched. [ON]: The front door outer handle ASSY (driver’s side) (unlock sensor) is touched.	·This item displays whether the unlock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). ·This item is displayed under [Current Data Display & Save]. When the entry unlock function does not work, use this item to check if the unlock sensor is faulty.

> Go to Step 4.

Replacement of the collation ECM (smart key computer ASSY)

4. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - front door outer handle ASSY).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the E1*1 or F5*2 front door outer handle ASSY connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-22 (SEN1) - E5-4 (SENS)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-22 (SEN1) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-22 (SEN1) - F5-4 (SENS)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-22 (SEN1) - chassis ground	Always	10 kΩ or more

5. Inspect the front door outer handle ASSY (driver’s door) unit.

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

(2) Reconnect the E1*1 or F5*2 front door outer handle ASSY (driver’s side door) connector.

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	Sampling is actually performed.	-	-

>Replace the front door outer handle ASSY (driver’s door).

Inspection terminals	Switch conditions	Tool setting	Specified condition
D41-22 (SEN1) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are locked. 4. The electrical key transmitter SUB-ASSY is not in the appropriate range from the vehicle. 5. Driver’s door unlock sensor, not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

Replacement of the collation ECM (smart key computer ASSY)

Smart unlock operation does not work on the passenger’s door (but smart lock operation works)

If the entry unlock function does not work but the entry lock function works properly on the passenger’s door, a request code is properly transmitted from the passenger’s door. In this case, the problem might be caused by a defect in the touch sensor (collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (passenger’s door) (unlock sensor)).

)
·Check if the electrical key transmitter SUB-ASSY is inside the vehicle.
·Even if you want to check the entry lock operation several times, the setting does not allow you to perform the lock operation more than 2 times in a row (except for EK/ER) To perform the entry lock operation more than twice, you have to unlock a door once (you may use any type of unlock operation). This limitation applies only to the entry lock operation. A wireless lock or other types of lock operations can be performed any number of times without any limitations.
·After the repair work is complete, perform the “DTC output check operation” to confirm that the DTC is not output again.

1. Check the power door lock operation.

(1) Operate the door control switch on the power window regulator master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to

)

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Read numerical values using the SSM3.

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Enter the following menu items: [Integ. unit mode] → [Current Data Display & Save].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : On the SSM3 display, [Lock] or [Unlock] is displayed as described in the table above.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[P Door Lock Pos]	Passenger’s door unlock detection switch signal/Lock or Unlock	Lock: Passenger’s door is closed Unlock: Passenger’s door is locked	-

>Go to “Light system” (door unlock detection switch circuit).

3. Read numerical values using the SSM3.

(4) Input the following menus: [Keyless access system] → [Collation ECM] → [Current Data Display & Save]

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : On the SSM3 display, [ON] or [OFF] is displayed as described in the table above.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[P seat unlock person sensor]	Front door outer handle ASSY (passenger’s side) (unlock sensor)/[OFF] or [ON]	[OFF]: The front door outer handle ASSY (passenger’s side) (unlock sensor) is not touched. [ON]: The front door outer handle ASSY (passenger’s side) (unlock sensor) is touched.	·This item displays whether the unlock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). ·This item is displayed under [Current Data Display & Save]. When the entry unlock function does not work, use this item to check if the unlock sensor is faulty.

> Go to Step 4.

Replacement of the collation ECM (smart key computer ASSY)

4. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - front door outer handle ASSY).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the F5*1 or E1*1 front door outer handle ASSY connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-23 (SEN1) - F5-4 (SENS)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-23 (SEN1) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-23 (SEN1) - E1-4 (SENS)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-23 (SEN1) - chassis ground	Always	10 kΩ or more

5. Inspect the front door outer handle ASSY (passenger’s door) unit.

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

(2) Disconnect the F5*1 or E1*2 front door outer handle ASSY (passenger’s door) connector.

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	Sampling is actually performed.	-	-

>Replace the front door outer handle ASSY (passenger’s door).

Inspection terminals	Conditions	Tool setting	Specified condition
D41-23 (SEN2) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not in the appropriate range from the vehicle. 5. Passenger’s door unlock sensor, not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

Replacement of the collation ECM (smart key computer ASSY)

Neither smart lock nor smart unlock operation works on the driver’s door

If the entry lock/unlock function does not work on the driver’s door, it means that a request code might not be transmitted from the driver’s door, or that the front door outer handle ASSY (driver’s side) (touch sensor) might be faulty. If the entry function works properly on other doors, the electrical key transmitter SUB-ASSY and the door control receiver are functioning properly. It can therefore be assumed that something is wrong with the transmission of a request code (communication between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (driver’s door) (driver’s door electrical key antenna)), or that interference from external radio waves is present.

)
·Check if the electrical key transmitter SUB-ASSY is inside the vehicle.
·Make sure that another electrical key transmitter SUB-ASSY (electronic key) is not placed inside the vehicle.
·Even if you want to check the entry lock operation several times, the setting does not allow you to perform the lock operation more than 2 times in a row (except for EK/ER) To perform the entry lock operation more than twice, you have to unlock a door once (you may use any type of unlock operation). This limitation applies only to the entry lock operation. A wireless lock or other types of lock operations can be performed any number of times without any limitations.

1. Check the power door lock operation.

(1) Operate the door control switch on the power window regulator master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed. (Refer to

)

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Checking the waveform environment

(1) Move the electrical key transmitter SUB-ASSY towards the front door outer handle ASSY and check how the entry lock and unlock operations work on the driver’s door.

*A	For LHD
*B	For RHD
*a	Approx. 0.3 m

If the key is within 0.2m of the door outer handle ASSY, communication is not possible.

·Try moving the electrical key transmitter SUB-ASSY closer to the front door outer handle ASSY, so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not.
·If the function works properly, it is highly likely that the problem is caused by interference from external radio waves. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation.

Criteria : The entry function works properly.

>Interference from external radio waves

Result	Go to
The entry function does not work properly.	A
The entry function works properly.	B

3. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - front door outer handle ASSY).

(1) Disconnect the D41 collation ECM (smart key ECM ASSY) connector.

(2) Remove the E1*1 or F5*2 front door outer handle ASSY (driver’s door) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-12 (CLG1) - E1-6 (ANT1)	Always	1 Ω or less
D41-13 (CG1B) - E1-3 (ANT2)	Always	1 Ω or less
D41-19 (POS1) - E1-5 (B)	Always	1 Ω or less
D41-12 (CLG1) - chassis ground	Always	10 kΩ or more
D41-13 (CG1B) - chassis ground	Always	10 kΩ or more
D41-19 (POS1) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-12 (CLG1) - F5-6 (ANT1)	Always	1 Ω or less
D41-13 (CG1B) - F5-3 (ANT2)	Always	1 Ω or less
D41-19 (POS1) - F5-5 (B)	Always	1 Ω or less
D41-12 (CLG1) - chassis ground	Always	10 kΩ or more
D41-13 (CG1B) - chassis ground	Always	10 kΩ or more
D41-19 (POS1) - chassis ground	Always	10 kΩ or more

4. Inspect the collation ECM (smart key ECM ASSY) (output to the driver’s side electrical key antenna).

(1) Reconnect the D41 connector of the collation ECM (smart key ECM ASSY).

*A	For LHD
*B	For RHD
*a	Front side of vehicle wiring harness connector (Front door outer handle ASSY (driver’s side)
*b	Waveform

*1: For LHD
*2: For RHD
*3: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

Inspection terminals	Conditions	Tool setting	Specified condition
E1-6 (ANT1) - E1-3 (ANT2)1 F5-6 (ANT1) - F5-3 (ANT2)2	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*3. 6. All doors are locked by a wireless operation.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

)

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

5. Replace the front door outer handle ASSY (driver’s door).

(1) Temporarily replace the front door outer handle ASSY (driver’s door) with a new one or one that functions normally. (Refer to

)

Next▼

6. Check the front door outer handle ASSY (driver’s door) (operation).

(1) Check if the entry function works properly. (Refer to

)

Criteria : The entry function works properly.

>Replacement of the collation ECM (smart key computer ASSY)

Next▼

END (front door outer handle ASSY malfunction)

Neither smart lock nor smart unlock operation works on the passenger’s door

Circuit description

If the entry lock/unlock function does not work on the passenger’s door, it means that a request code might not be transmitted from the passenger’s door, or that the front door outer handle ASSY (passenger’s side) (touch sensor) might be faulty. If the entry function works properly on other doors, the electrical key transmitter SUB-ASSY and the door control receiver are functioning properly. It can therefore be assumed that something is wrong with the transmission of a request code (communication between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (passenger’s door) (passenger’s door electrical key antenna)), or that interference from external radio waves is present.

Circuit figure

Inspection steps

CAUTION:

1. Check the power door lock operation.

(1) Operate the door control switch on the power window regulator master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed.

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Checking the waveform environment

(1) Move the electrical key transmitter SUB-ASSY towards the front door outer handle ASSY and check how the entry lock and unlock operations work on the passenger’s door.

*A	For LHD
*B	For RHD
*a	Approx. 0.3 m

If the key is within 0.2 m of the door outer handle ASSY, communication is not possible.

>Interference from external radio waves

Result	Go to
The entry function does not work properly.	A
The entry function works properly.	B

3. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - front door outer handle ASSY).

(1) Disconnect the D41 collation ECM (smart key ECM ASSY) connector.

(2) Remove the F5*1 or E1*2 front door outer handle ASSY (passenger’s door) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-11 (CLG2) - F5-6 (ANT1)	Always	1 Ω or less
D41-10 (CG2B) - F5-3 (ANT2)	Always	1 Ω or less
D41-21 (POS2) - F5-5 (B)	Always	1 Ω or less
D41-11 (CLG2) - chassis ground	Always	10 kΩ or more
D41-10 (CG2B) - chassis ground	Always	10 kΩ or more
D41-21 (POS2) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-11 (CLG2) - E1-6 (ANT1)	Always	1 Ω or less
D41-10 (CG2B) - E1-3 (ANT2)	Always	1 Ω or less
D41-21 (POS2) - E1-5 (B)	Always	1 Ω or less
D41-11 (CLG2) - chassis ground	Always	10 kΩ or more
D41-10 (CG2B) - chassis ground	Always	10 kΩ or more
D41-21 (POS2) - chassis ground	Always	10 kΩ or more

4. Inspect the collation ECM (smart key ECM ASSY) (output to the passenger’s side electrical key antenna).

(1) Reconnect the D41 connector of the collation ECM (smart key ECM ASSY).

*A	For LHD
*B	For RHD
*a	Front side of vehicle wiring harness connector Front door outer handle ASSY
*b	Waveform

*1: For LHD
*2: For RHD
*3: For a detailed description on outside the entry function detection area, refer to “Operation check”. (Refer to

Inspection terminals	Conditions	Tool setting	Specified condition
F5-6 (ANT1) - F5-3 (ANT2)1 E1-6 (ANT1) - E1-3 (ANT2)2	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. The electrical key transmitter SUB-ASSY is not inside the vehicle. 5. The electrical key transmitter SUB-ASSY is outside the detection area*3. 6. All doors are locked by a wireless operation.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

)

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

5. Replace the front door outer handle ASSY (passenger’s door).

(1) Temporarily replace the front door outer handle ASSY (passenger’s door) with a new one or one that functions normally.

Next▼

6. Check the front door outer handle ASSY (passenger’s door) (operation).

(1) Check if the entry function works properly. (Refer to

)

Criteria : The entry function works properly.

>Replacement of the collation ECM (smart key computer ASSY)

OK▼

END (front door outer handle ASSY malfunction)

Smart lock operation does not work on the driver’s door (but smart unlock operation works)

Circuit description

If the driver’s door lock function does not work but the entry unlock function works properly, the communication between the vehicle and the electrical key transmitter SUB-ASSY is normal. In this case, the problem might be caused by a defect in the lock sensor circuit between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (passenger’s side electrical key antenna).

Circuit figure

Inspection steps

CAUTION:

1. Check the power door lock operation.

(1) Operate the door control switch on the master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed.

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Read numerical values using the SSM3.

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Input the following menus: [Keyless access system] → [Collation ECM] → [Current Data Display & Save]

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : On the SSM3 display, [ON] or [OFF] is displayed as described in the table above.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[D seat lock person sensor]	Front door outer handle ASSY (driver’s side) (lock sensor)/[OFF] or [ON]	[OFF]: The front door outer handle ASSY (driver’s side) (lock sensor) is not touched. [ON]: The front door outer handle ASSY (driver’s side) (lock sensor) is touched.	·This item displays whether the lock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). ·This item is displayed under [Current Data Display & Save]. When the entry lock function does not work, use this item to check if the lock sensor is faulty.

> Go to Step 3.

Replacement of the collation ECM (smart key computer ASSY)

3. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - front door outer handle ASSY).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Disconnect the E1*1 or F5*2 front door outer handle ASSY connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-20 (TSW1) - E1-1 (TRG+)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-20 (TSW1) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-20 (TSW1) - F5-1 (TRG+)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-20 (TSW1) - chassis ground	Always	10 kΩ or more

4. Inspect the front door outer handle ASSY (driver’s door) unit.

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

(2) Reconnect the E1*1 or F5*2 front door outer handle ASSY (driver’s side door) connector.

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	The driver’s side lock sensor is touched.	-	-

>Replace the front door outer handle ASSY (driver’s door).

Inspection terminals	Switch conditions	Tool setting	Specified condition
D41-20 (TSW1) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Driver’s door lock sensor, not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

Replacement of the collation ECM (smart key computer ASSY)

Smart lock operation does not work on the passenger’s door (but smart unlock operation works)

If the passenger’s door lock function does not work but the entry unlock function works properly, the communication between the vehicle and the electrical key transmitter SUB-ASSY is normal. In this case, the problem might be caused by a defect in the lock sensor circuit between the collation ECM (smart key ECM ASSY) and the front door outer handle ASSY (passenger’s side electrical key antenna).

1. Check the power door lock operation.

(1) Operate the door control switch on the master switch ASSY, and check if the door locks or unlocks properly according to the switch operation you have performed.

Criteria : The door lock operation is performed properly.

>Go to “Power door lock control system” (“Symptom table”).

OK▼

2. Read numerical values using the SSM3.

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Input the following menus: [Keyless access system] → [Collation ECM] → [Current Data Display & Save]

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : On the SSM3 display, [ON] or [OFF] is displayed as described in the table above.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[P seat lock person sensor]	Front door outer handle ASSY (passenger’s side) (lock sensor)/[OFF] or [ON]	[OFF]: The front door outer handle ASSY (passenger’s side) (lock sensor) is not touched. [ON]: The front door outer handle ASSY (passenger’s side) (lock sensor) is touched.	·This item displays whether the lock sensor is ON or OFF (even when the sensor is properly touched [ON] is displayed only momentarily). ·This item is displayed under [Current Data Display & Save]. When the entry lock function does not work, use this item to check if the lock sensor is faulty.

> Go to Step 3.

Replacement of the collation ECM (smart key computer ASSY)

3. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - front door outer handle ASSY).

(1) Disconnect the D41 and D48 collation ECM (smart key ECM ASSY) connectors.

(2) Remove the F5*1 or E1*2 front door outer handle ASSY (driver’s door) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-8 (TSW2) - F5-1 (TRG+)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-8 (TSW2) - chassis ground	Always	10 kΩ or more

Inspection terminals	Inspection conditions	Standard value
D41-8 (TSW2) - E1-1 (TRG+)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D41-8 (TSW2) - chassis ground	Always	10 kΩ or more

4. Inspect the front door outer handle ASSY (passenger’s door) unit.

(1) Reconnect the D41 and the D48 connectors of the collation ECM (smart key ECM ASSY).

(2) Disconnect the F5*1 or E1*2 front door outer handle ASSY (driver’s door) connector.

*a	Connector connected (Collation ECM (smart key ECM ASSY))	*b	Waveform
*c	The passenger’s door lock sensor is touched.	-	-

>Replace the front door outer handle ASSY (passenger’s door).

Inspection terminals	Switch conditions	Tool setting	Specified condition
D41-8 (TSW2) - D48-11 (GND)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is outside the vehicle. 3. All doors are closed. 4. Passenger’s door lock sensor, not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

Replacement of the collation ECM (smart key computer ASSY)

Interior collation is NG

If the code check operation cannot be performed inside the vehicle, communication between the vehicle (indoor electrical key antenna ASSY (front floor or rear floor)) and the electrical key transmitter SUB-ASSY might be faulty, or the collation ECM (smart key ECM ASSY) might be faulty. When the electrical key transmitter SUB-ASSY is located inside the vehicle, the key ID code transmitted from the electrical key transmitter SUB-ASSY is matched against the one stored in the collation ECM (smart key ECM ASSY). If this operation cannot be performed or if the code does not match, the engine switch does not turn ON (IG) and the engine cannot be started.

If the electrical key transmitter SUB-ASSY is located inside the vehicle with doors unlocked, the collation ECM (smart key ECM ASSY) sends out radio waves to detect the electrical key transmitter SUB-ASSY, and the indoor electrical key antenna ASSY becomes enabled. If the presence of the electrical key transmitter SUB-ASSY inside the detection area is confirmed, the collation ECM (smart key ECM ASSY) responds to the key ID code. This information is received by the door control receiver, which is then sent to the collation ECM (smart key ECM ASSY).

)
·An antenna coil is present between the 2 terminals of the indoor electrical key antenna ASSY.

NOTE:

Ensure that the entry cancel function (one of the customize setting available for the entry & start system) is not enabled. (Refer to

)

1. Check the entry & start system (entry function).

(1) Check if the entry lock/unlock function works properly. (Refer to

)

Criteria : The entry lock/unlock function works properly.

>Go to “Symptom table” (entry & start system (entry function)) (refer to

OK▼

2. Check the entry & start system (start function).

(1) Remove the battery from the electrical key transmitter SUB-ASSY. (Refer to

)

(2) Depress the brake pedal *1 or the clutch pedal *2, and touch the logo side of the electrical key transmitter SUB-ASSY to the engine switch.

*1: With automatic transmission
*2: for manual transmission

(3) Turn to IG ON, and check if the engine starts when you operate the engine switch.

NOTE:

·If the presence of the electrical key transmitter SUB-ASSY inside the detection area cannot be confirmed, remove the transmitter battery from the electrical key transmitter SUB-ASSY and then place the electrical key transmitter SUB-ASSY over the engine switch to check if the engine starts.
·If the engine does not start during this inspection procedure, the collation ECM (smart key ECM ASSY), steering lock actuator ASSY (steering lock ECM), or the ID code box*1 might be faulty.

*1: The ID code box is included.

Criteria : The engine starts.

>Go to “Entry & start system” (start function) (refer to

*1	Engine switch
*2	Electrical key transmitter SUB-ASSY

OK▼

3. Checking the waveform environment

(1) Insert the transmitter battery into the electrical key transmitter SUB-ASSY. (Refer to

)

(2) Move the electrical key transmitter SUB-ASSY toward the indoor electrical key antenna ASSY no. 1 (front floor) and check if the engine starts.

CAUTION:

If the key is within 0.2 m (0.656 feet) of the indoor electrical key antenna ASSY no. 1 (front floor), communication may not be possible.

(3) Move the electrical key transmitter SUB-ASSY toward the indoor electrical key antenna ASSY no. 2 (rear floor) and check if the engine starts. If a setting other than [All] is specified for [Ignition Available Area] by customization, the engine does not start. Before proceeding with this inspection procedure, check that [All] is selected for this item. (Refer to

)

CAUTION:

If the key is within 0.2 m (.0.656 feet) of the indoor electrical key antenna ASSY no. 2 (rear floor), communication is not possible.

NOTE:

·Try moving the electrical key transmitter SUB-ASSY closer to the door control receiver, so that it is less exposed to external radio waves. In this way, you can identify if the problem is caused by external radio waves or not.
·If the failure occurs in certain locations or during certain periods of time, it may be due to interference from external radio waves. In addition, the vehicle can also be affected by external radio waves generated by components installed by a dealer. If such components are found, remove them before inspecting the vehicle.
·Being close to a broadcast antenna, a large video display, a wireless garage door opener system, a wireless security camera, or a home security system makes the vehicle susceptible to interference from external radio waves. If this is the case, move the vehicle to another location to check if the problem improves.
·If a tool for checking radio waves such as a signal-strength meter is available, take measurements in the LF band (which is used by the vehicle antenna to create a detection area) and the RF band (which is used by the electrical key transmitter SUB-ASSY for signal transmission) in the vicinity of the vehicle to check where the radio waves might be present.

Criteria : The engine starts.

> Go to Step 4.

OK▼

Interference from external radio waves

4. Perform the keyless access system check.

(1) Perform keyless access system check for the following antennas. (Refer to

)

(a) Check the indoor electrical key antenna ASSY no. 1 (front floor):

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located at the inspection points.

*a	Inspection point

(2) Check the indoor electrical key antenna ASSY no. 2 (rear floor).

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located at the inspection points.

*a	Inspection point

·If the buzzer beeps, it means that the indoor transmitter is functioning properly.
·You can identify which indoor electrical key antenna ASSY (front floor or rear floor) is functioning properly by checking if the buzzer beeps when the key is near the respective antennas.
·If the buzzer does not go off when the key is near the indoor electrical key antenna ASSY, the circuit inside the collation ECM (smart key ECM ASSY) might be faulty.

>Replacement of the collation ECM (smart key computer ASSY)

Result	Go to
Front side operation failure	A
Rear floor operation failure	B
Front and rear operation check results are OK.	C

> Go to Step 9.

5. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - indoor electrical key antenna no. 1 (front floor)).

(1) Disconnect the D41 collation ECM (smart key ECM ASSY) connector.

(2) Disconnect the D26 indoor electrical key antenna ASSY no. 1 (front floor) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D41-3 (CLG5) - D26-1 (ANTE5)	Always	1 Ω or less
D41-2 (CG5B) - D26-3 (CLGB)	Always	1 Ω or less
D41-3 (CLG5) - chassis ground	Always	10 kΩ or more
D41-2 (CG5B) - chassis ground	Always	10 kΩ or more

6. Inspect the collation ECM (smart key ECM ASSY) (output to the electrical key antenna ASSY no. 1 (front floor)).

(1) Reconnect the D41 connector of the collation ECM (smart key ECM ASSY).

Inspection terminals	Conditions	Tool setting	Specified condition
D26-1 (ANTE5) - D26-3 (CLGB)	Procedure: 1. The engine switch is OFF. 2. A door is open. 3. A door is closed. 4. 30 seconds elapses. 5. The electrical key transmitter SUB-ASSY is not inside the vehicle.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

>Replacement of the collation ECM (smart key computer ASSY)

*a	Front side of vehicle wiring harness connector Indoor electrical key antenna ASSY no. 1 (front floor)
*b	Waveform
*c	Door open → within 30 seconds after closing
*d	After 30 seconds from closing the door

7. Replace the indoor electrical key antenna ASSY no. 1 (front floor).

(1) Temporarily replace the indoor electrical key antenna ASSY no. 1 (front floor) with a new one or one that functions normally.

8. Perform the keyless access system check.

(1) Perform keyless access system check for the following antennas. (Refer to

)

(2) Check the indoor electrical key antenna ASSY no. 1 (front floor):

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located at the inspection points.

*a	Inspection point

>Replacement of the collation ECM (smart key computer ASSY)

END (indoor electrical key antenna ASSY no. 1 malfunction)

9. Check the harnesses and connectors (collation ECM (smart key ECM ASSY) - indoor electrical key antenna ASSY no. 2).

(1) Disconnect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Disconnect the H15 indoor electrical key antenna ASSY no. 2 (rear floor) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D40-11 (CLG6) - H15-1 (ANTE6)	Always	1 Ω or less
D40-10 (CG6B) - H15-3 (CLGB)	Always	1 Ω or less
D40-11 (CLG6) - chassis ground	Always	10 kΩ or more
D40-10 (CG6B) - chassis ground	Always	10 kΩ or more

10. Inspect the collation ECM (smart key ECM ASSY) (output to the indoor electrical key antenna no. 2).

(1) Reconnect the D40 collation ECM (smart key ECM ASSY) connector.

Inspection terminals	Conditions	Tool setting	Specified condition
H15-1 (ANTE6) - H15-3 (CLGB)	Procedure: 1. The engine switch is OFF. 2. A door is open. 3. A door is closed. 4. 30 seconds elapses. 5. The electrical key transmitter SUB-ASSY is not inside the vehicle.	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

>Replacement of the collation ECM (smart key computer ASSY)

*a	Front side of vehicle wiring harness connector Indoor electrical key antenna ASSY no. 2 (rear floor)
*b	Waveform
*c	Door open → within 30 seconds after closing
*d	After 30 seconds from closing the door

11. Replace the indoor electrical key antenna ASSY no. 2 (rear floor).

(1) Temporarily replace the indoor electrical key antenna ASSY no. 2 (rear floor) with a new one or one that functions normally.

12. Perform the keyless access system check.

(1) Perform keyless access system check for the following antennas. (Refer to

)

(a) Check the indoor electrical key antenna ASSY no. 2 (rear floor).

Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located at the inspection points.

*a	Inspection point

>Replacement of the collation ECM (smart key computer ASSY)

END (indoor electrical key antenna ASSY no. 2 malfunction)

Smart trunk open operation does not work (when the transmitter is located outside trunk)

If the trunk entry unlock function does not work, a request code might not be transmitted from the trunk. If the entry function works properly on other doors, the electrical key transmitter SUB-ASSY and the door control receiver are functioning properly. It can therefore be assumed that something is wrong with the transmission of a request code (communication between the collation ECM (smart key ECM ASSY) and the electrical key antenna (trunk exterior antenna)), that the switch located outside the trunk is faulty, or that interference from external radio waves is present.

·Some functions of the smart entry & start system (entry function) use the CAN communication system and the LIN communication system. Inspect the communication function first by referring to “How to troubleshoot” (refer to

). Confirm that the communication system is functioning properly before proceeding to repair the smart entry & start system (entry function).
·Check if the electrical key transmitter SUB-ASSY is inside the vehicle.
·Before proceeding with the inspection procedure, check that the DTC B1242 (wireless door lock control) is not output. (Refer to

)
·Refer to the notes provided under “Smart entry & start system (entry function)” before proceeding to replace the collation ECM (smart key ECM ASSY). (Refer to

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the diagnostic code is not output again.

1. Read numerical values using the SSM3.

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Enter the following menu items: [Keyless access system check] → [Collation ECM] → [Unit customizing].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Trunk Open Mode]	Trunk opening switch ASSY/[OFF] or [ON]	Customization status is displayed.	-

>Specify the customize setting (go to “customize function”) (refer to

Result	Go to
The entry trunk open mode is ON.	A
The entry trunk open mode is OFF.	B

A▼

2. Read numerical values using the SSM3.

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Enter the following menu items: [Keyless access system check] → [Collation ECM] → [Unit customizing].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : The monitor changes as you operate the trunk opening switch ASSY.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Tr/B-Door Unlock SW]	Trunk opening switch ASSY/[OFF] or [ON]	[ON]: The trunk opening switch ASSY is pressed. [OFF]: The trunk door opening switch ASSY is not pressed.	-

> Go to Step 8.

3. Using the SSM3, execute [System Operation Check Mode].

(4) Enter the following menu items: [Integ. unit mode] → [Work Support] → [System Operation Check Mode].

(5) Based on the contents of the SSM3 display, read the [Current Data Display & Save].

Criteria : The trunk opens.

Tester display	Tested parts	Control range	Notes for diagnosis
[Trunk and Back-Door Open]	Operate the trunk lock motor.	ON/OFF	-

> Go to Step 10.

(1) Move the electrical key transmitter SUB-ASSY toward the electrical key antenna (trunk exterior antenna) and check the entry trunk open function.

4. Checking the waveform environment

*a	Approx. 0.3 m

If the electrical key transmitter SUB-ASSY is within 0.2m of the rear bumper, communication is not possible.

·Press the switch located outside the trunk opener, holding the electrical key transmitter SUB-ASSY approximately 1 m above ground and approximately 0.3 m away from the vehicle, as shown in the figure.
·Try moving the electrical key transmitter SUB-ASSY closer to the electrical key antenna (trunk exterior antenna), so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by external radio waves or not.
·If the operation check reveals a normal result, it is highly likely that the problem is caused by the effect of electromagnetic interference. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation.

Criteria : The entry function works properly.

> Go to Step 5.

Interference from external radio waves

5. Perform the keyless access system check.

(1) Perform keyless access system check for the following antennas. (Refer to

)

(a) Check the indoor electrical key antenna ASSY no. 2 (rear floor).

(2) Hold the electrical key transmitter SUB-ASSY at the same level as the upper surface of the rear bumper, positioning it at the center of the rear end of the vehicle. Check if the wireless door lock buzzer beeps.

*a	0.7 - 1.0m

·Hold the electrical key transmitter SUB-ASSY at the same level as the upper surface of the rear bumper, positioning it at the center of the rear end of the vehicle (0.7 - 1.0 m (2.30 - 3.28 feet)). Check that the electrical key transmitter SUB-ASSY is facing in the same direction as shown in the figure.
·If the buzzer beeps, it means that the transmitter located outside the trunk is functioning properly.

> Go to Step 6.

Replacement of the collation ECM (smart key computer ASSY)

6. Check the harnesses and connectors (collation ECM - electrical key antenna).

(1) Disconnect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Disconnect the H3 electrical key antenna (trunk exterior antenna) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D40-1 (CG8B) - H3-2 (ANTE2)	Always	1 Ω or less
D40-2 (CLG8) - H3-1 (ANTE1)	Always	1 Ω or less
D40-1 (CG8B) - chassis ground	Always	10 kΩ or more
D40-2 (CLG8) - chassis ground	Always	10 kΩ or more

7. Inspect the electrical key antenna (trunk exterior antenna) unit.

(1) Remove the electrical key antenna (trunk exterior antenna).

(2) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
1 (ANTE1) - 2 (ANTE2)	Always	1 Ω or less

>Replace the electrical key antenna (trunk exterior antenna).

*a	Connector not connected (Electrical key antenna (trunk exterior antenna))

Replacement of the collation ECM (smart key computer ASSY)

8. Inspect the trunk opening switch ASSY unit.

(1) Remove the trunk opening switch ASSY. (Refer to

)

(2) Inspect the trunk opening switch ASSY. (Refer to

)

>Replacement of the trunk opening switch ASSY

OK▼

9. Check the harnesses and connectors (collation ECM - trunk opening switch ASSY).

(1) Disconnect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Remove the J2 trunk opening switch ASSY connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
D40-27 (TSW5) - J2-2	Always	1 Ω or less
J2-1 - chassis ground	Always	1 Ω or less
D40-27 (TSW5) - chassis ground	Always	10 kΩ or more

Replacement of the collation ECM (smart key computer ASSY)

10. Inspect the trunk lock ASSY unit.

(1) Remove the trunk lock ASSY. (Refer to

)

(2) Inspect the trunk lock ASSY. (Refer to

)

>Replacement of the trunk lock ASSY

OK▼

11. Check the harnesses and connectors (trunk lock - instrument panel junction block).

(1) Disconnect the 3B and 3D instrument panel junction block ASSY connectors.

(2) Disconnect the J3 trunk lock ASSY connector.

(3) Measure the resistance according to the following table.

Resistance

Inspection terminals	Inspection conditions	Standard value
3B-6 - J3-1	Always	1 Ω or less
3D-26 -J3-3	Always	1 Ω or less
J3-2 - chassis ground	Always	1 Ω or less
3B-6 - chassis ground	Always	10 kΩ or more
3D-26 - chassis ground	Always	10 kΩ or more

12. Inspect the instrument panel junction block ASSY unit.

(1) Remove the instrument panel junction block ASSY.

(2) Remove the main body ECM (multiplex network body ECM) from the instrument panel junction block ASSY.

(3) Measure the resistance according to the following table.

>Replacement of the instrument panel junction block ASSY

Inspection terminals	Conditions	Specified condition
3B-6 - MB-4	Always	1 Ω or less
3D-26 - MB-12	Always	1 Ω or less

Replace the main body ECM (multiplex network body ECM).

The smart key lockout protection function for the trunk does not work (trunk does not open)

If the entry luggage compartment lock-in prevention function does not work, communication between the indoor electrical key antenna ASSY no. 3 (trunk interior antenna) and the electrical key transmitter SUB-ASSY might be faulty, interference from external radio waves might be present, or the collation ECM (smart key ECM ASSY) might be faulty.

>Proceed to check other problems (“Symptom table”) (refer to

)
·Refer to the notes provided under “Smart entry & start system (entry function)” before proceeding to replace the collation ECM (smart key ECM ASSY). (Refer to

)
·After the repair work is complete, perform the “DTC output check operation” to confirm that the diagnostic code is not output again.

1. Check the entry function (entry trunk open function).

(1) Check if the entry trunk open function works properly. (Refer to

)

Result

Result	Go to
The entry trunk open function works properly.	A
The entry trunk open function does not work properly.	B

A▼

2. Checking the waveform environment

(1) Move the electrical key transmitter SUB-ASSY toward the indoor electrical key antenna ASSY no. 3 (trunk interior antenna) and check if the entry luggage compartment lock-in prevention function works.

*a	Inspection point

If the electrical key transmitter SUB-ASSY is within 0.2 m (0.656 feet) of the indoor electrical key antenna ASSY no. 3 (rear floor), communication is not possible.

·Try moving the electrical key transmitter SUB-ASSY closer to the indoor electrical key antenna ASSY no. 3 (trunk interior antenna), so that it is less likely to be affected by interference from external radio waves. In this way, you can identify if the problem is caused by electromagnetic interference.
·If the operation check reveals a normal result, it is highly likely that the problem is caused by the effect of electromagnetic interference. In addition, installing an additional component to the vehicle makes the vehicle more susceptible to interference from external radio waves. If such components are found, remove them, and then proceed to check the operation.

Criteria : The entry function works properly.

> Go to Step 3.

Interference from external radio waves

3. Perform the keyless access system check.

(1) Perform keyless access system check for the following antennas. (Refer to

)

(2) Check if the wireless door lock buzzer beeps when the electrical key transmitter SUB-ASSY is located in the trunk.

*a	Inspection point

·Place the key in the trunk.
·If the buzzer beeps, it means that the indoor electrical key antenna ASSY no. 3 (located inside the trunk) is functioning properly.

> Go to Step 4.

Replacement of the collation ECM (smart key computer ASSY)

4. Check the harnesses and connectors (collation ECM - indoor electrical key antenna no. 3).

(1) Disconnect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Disconnect the H9 indoor electrical key antenna ASSY No. 3 (trunk interior antenna) connector.

(3) Measure the resistance according to the following table.

Inspection terminals	Inspection conditions	Standard value
D40-9 (CLG7) - H9-1 (ANTE7)	Always	1 Ω or less
D40-8 (CG7B) - H9-3 (CLGB)	Always	1 Ω or less
D40-9 (CLG7) - chassis ground	Always	10 kΩ or more
D40-8 (CG7B) - chassis ground	Always	10 kΩ or more

5. Check the collation ECM (smart key ECM ASSY).

(1) Connect the D40 collation ECM (smart key ECM ASSY) connector.

(2) Disconnect the H9 indoor electrical key antenna ASSY no. 3 (trunk interior antenna) connector.

(3) Measure the voltage according to the following table.

Inspection terminals	Switch conditions	Tool setting	Specified condition
H9-1 (CLG7) -H9-3 (CLGB)	Procedure: 1. The engine switch is OFF. 2. The electrical key transmitter SUB-ASSY is not inside the vehicle. 3. All doors are closed. 4. Driver’s door lock sensor, not touched → touched	2 V/DIV., 500 ms/DIV.	Pulse generation (refer to the waveform)

>Replacement of the collation ECM (smart key computer ASSY)

*a	Front side of vehicle wiring harness connector (Indoor electrical key antenna ASSY no. 3 (trunk interior antenna))
*b	Waveform
*c	The driver’s side lock sensor is not touched.
*d	The driver’s side lock sensor is touched.