Entry &amp; start system (start function)

·When replacing the collation ECM (smart key ECM ASSY), it is also necessary to prepare all the registered electrical key transmitter SUB-ASSYs.
·It is not possible to use a registered electrical key transmitter SUB-ASSY or ECM in a different vehicle.

(a) ID code box (immobilizer code ECM) *1

(b) Collation ECM (smart key ECM ASSY)

(d) Steering lock actuator ASSY (steering lock ECM)

(e) Electrical key transmitter SUB-ASSY

*1: The ID code box is included.

2. System functions
The push button start functions are described below:

Function	Procedures
Ignition function	When the electrical key transmitter SUB-ASSY is confirmed to be in the vehicle interior, and the engine switch and brake pedal 1 or clutch pedal 2 are operated, the ignition function changes the power or starts the engine.
Vehicle battery power saving function	When not using the vehicle for long periods of time, this function extends the interval for the periodic sending of request signals or stops the sending of request signals, and saves the vehicle's battery power. ·If 5 days pass without a response from the electrical key transmitter SUB-ASSY, the periodic sending of signals is stopped. ·If 14 days pass without a response from the electrical key transmitter SUB-ASSY, the lock / unlock sensors of all the door outside handle ASSYs except for the driver side door are disabled. If 10 minutes or more pass with the electrical key transmitter SUB-ASSY inside the detection area, the entry & start system will automatically disable the vehicle exterior detection area where the electrical key transmitter SUB-ASSY is.
Electrical key transmitter SUB-ASSY battery power saving function	If you press the switch on the electrical key transmitter SUB-ASSY, this function stops the sending of signals approx. 20 seconds later, and saves the power consumed by the electrical key transmitter SUB-ASSY.
Entry cancel function	Cancels the entry & start system when certain operations are performed.
Immobilizer function	Because the engine is only started by the registered electrical key transmitter SUB-ASSY, this prevents unauthorized people from starting the engine.
Automatic power OFF function	With automatic transmission If the vehicle is left for 60 minutes or more with the shift lever in P and ACC ON or IG ON (with the engine not started, or the vehicle stopped), the power automatically turns off. With manual transmission If the vehicle is left for 60 minutes or more in ACC ON or IG ON (with the engine not started and the vehicle stopped), the power automatically turns off.

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

·Depending on the shape of the vehicle body, there may be certain places where the electrical key transmitter SUB-ASSY doesn't operate.
·Even if the electrical key transmitter SUB-ASSY is within the vehicle exterior key detection area, if the electrical key transmitter SUB-ASSY is near a window, a door handle, or the center of the rear bumper, it may not be detected properly.
·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 held improperly, the electrical key transmitter SUB-ASSY may not work properly.
·In the following conditions, the range of the detection area may become smaller, or the key may not be detected properly:

·The battery of the electrical key transmitter SUB-ASSY is drained.
·There is a facility that produces strong radio waves nearby, such as a TV tower, a power plant, a TV station, or a gas station.
·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.
·The electrical key transmitter SUB-ASSY is covered by or touching a metal product.
·A radio wave type keyless entry system is being used nearby.
·The electrical key transmitter SUB-ASSY is near a high-voltage device or a device that produces electrical noise.
·There is an electric device, such as a charger, near the electrical key transmitter SUB-ASSY.

(1) The request signal from the collation ECM (smart key ECM ASSY) is sent via each electrical key antenna (vehicle exterior), and forms the detection area. The detection area formed by each electrical key antenna (vehicle exterior) is 0.7 m from the door handle and the rear bumper (electrical key antenna (trunk exterior)).

(2) When the vehicle is parked (with the power off and the door locked *), the detection area of each electrical key antenna (vehicle exterior) is formed by emitting a periodic request signal every 0.25 second to detect the electrical key transmitter SUB-ASSY. Also, with the door locked and touching the lock sensor, the request signal is emitted, and by forming the detection area on the vehicle exterior, the electrical key transmitter SUB-ASSY is detected.

*: The entry & start system controls each door individually. If you lock a door with the door lock switch or the wireless remote control function, even if all doors are not locked, a detection area is formed around the locked door.

(3) The detection area of the electrical key antenna (trunk exterior) is formed when you press the trunk opening switch ASSY.

(4) The vehicle interior detection area is formed and the electrical key transmitter SUB-ASSY is detected in any of the following conditions: 1) a door is opened or closed, 2) the brake pedal *1 or the clutch pedal *2 is depressed, 3) the engine switch is operating, 4) the conditions required for a warning are met, 5) operation of the entry door lock is performed.

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

(5) The settings of the vehicle interior detection area for when the engine in turned on can be customized with the customize function. (Refer to

)

HOW TO PROCEED WITH TROUBLESHOOTING

NOTE:

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

1. VEHICLE BROUGHT TO WORKSHOP

NEXT▼

2. CUSTOMER PROBLEM ANALYSIS CHECK

NOTE:

·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
Where	Road conditions
Under what conditions?	Running conditions, driving conditions, weather conditions
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.
·If the customer attempted to start the engine by touching the electrical key to the engine switch and pressing the engine switch.
·If the interior warning buzzers do not sound.
·If the steering does not unlock.
·Any other details concerning the problem.

·If it is thought that 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 even when the key was near 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 {0.33ft.} away from such items).
·Where the key is being kept when not in use:
Whether or not the key being placed within 1m {3.28ft.} 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 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.

NEXT▼

3. INSPECT BASIC OPERATION

(1) Inspect battery voltage.

Standard voltage : 11 to 14 V

CAUTION:

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

(2) Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected.

NEXT▼

4. Communication inspection of the CAN communication system

(1) Check CAN communication system. (Refer to

)

Result

Result	Go to
Functioning properly	A
Not functioning properly	B

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

A▼

5. 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

)

Result

Result	Go to
Functioning properly	A
Not functioning properly	B

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

)

A▼

6. CHECK FOR DTC*

(1) Check for DTCs and note any codes that are output. (See page

)

Result

Result	Go 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
Entry and start system (for Start Function) DTC is output	E

>Go to “steering lock system (List of diagnostic codes)” (Refer to

)

>GO TO ENGINE IMMOBILISER SYSTEM (DIAGNOSTIC TROUBLE CODE CHART) (See page

)

>GO TO ENTRY AND START SYSTEM (for Entry Function) (DIAGNOSTIC TROUBLE CODE CHART) (See page

)

>GO TO DIAGNOSTIC TROUBLE CODE CHART (See page

)

A▼

7. PROBLEM SYMPTOMS TABLE

(1) Refer to Problem Symptoms Table. (See page

)

Result

Result	Proceed to
Fault is not listed in the Problem Symptoms Table	A
Fault is listed in the Problem Symptoms Table	B

>Go to step 9

8. OVERALL ANALYSIS AND TROUBLESHOOTING*

(1) Operation Check. (See page

)

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

)

(3) Terminals of ECU. (See page

)

NEXT▼

9. REPAIR OR REPLACE

NEXT▼

10. CHECK FOR DTC*

(1) Clear the DTCs. (See page

)

(2) Recheck for DTCs. (See page

)

NOTE:

Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

>GO TO DIAGNOSTIC TROUBLE CODE CHART

Result	Proceed to
DTC is not output	A
DTC is output	B

(1) Entry ignition function (with automatic transmission):

END

FUNCTION INSPECTION

1. Operation explanation

(a) If the electrical key transmitter SUB-ASSY is in the vehicle interior detection area and the brake pedal is depressed, you can press the engine switch and start the engine.

(b) If the electrical key transmitter SUB-ASSY is in the vehicle interior detection area and the brake pedal is not depressed, you can press the engine switch to change the power mode. The power mode changes each time you press the engine switch, in the following order: OFF → ACC ON→ IG ON → OFF.

(c) In IG OFF, after you enter the vehicle interior carrying the electrical key transmitter SUB-ASSY, if you press the engine switch without depressing the brake pedal, the power mode switches to ACC, and the entry key indicator light in the combination meter ASSY blinks green.

(d) With the engine switch turned off, after you enter the vehicle interior holding the electrical key transmitter SUB-ASSY in your hand, and with the shift lever put in P, if you depress the brake pedal, the entry key indicator light in the combination meter ASSY will light up green.

(e) If you press the engine switch when the entry key indicator light of the combination meter ASSY is lit up green, the engine will start.

(2) Changing the power mode when the electrical key transmitter SUB-ASSY doesn't operate properly due to radio wave interference or the battery of the electrical key transmitter SUB-ASSY being drained (for automatic transmission):

(a) Use the integrated mechanical key to unlock the door, hold the electrical key transmitter SUB-ASSY, and enter the vehicle interior.

(b) Depress the brake pedal and hold the ornament side of the electrical key transmitter SUB-ASSY up to the engine switch.

If the entry cancel function has been customized, the power mode changes to on (ACC).

(3) Starting the engine when the electrical key transmitter SUB-ASSY doesn't operate properly due to radio wave interference or the battery of the electrical key transmitter SUB-ASSY being drained (for automatic transmission):

(a) Use the integrated mechanical key to unlock the door, hold the electrical key transmitter SUB-ASSY, and enter the vehicle interior.

(b) Depress the brake pedal, move the shift lever in P, and hold the ornament side of the electrical key transmitter SUB-ASSY up to the engine switch.

(c) The buzzer sounds and the vehicle turns to IGN ON. When the entry key indicator light of the combination meter ASSY lights up green, press the engine switch while pressing the brake pedal, and start the engine.

If the entry cancel function has been customized, the power mode changes to on (ACC).

(4) Entry ignition function (with manual transmission):

(a) If the electrical key transmitter SUB-ASSY is in the vehicle interior detection area and the clutch pedal is depressed, you can press the engine switch and start the engine.

(b) If the electrical key transmitter SUB-ASSY is in the vehicle interior detection area and the clutch pedal is not depressed, you can press the engine switch to change the power mode. The power mode changes each time you press the engine switch, in the following order: OFF → ACC ON→ IG ON → OFF.

(c) In IG OFF, after you enter the vehicle interior carrying the electrical key transmitter SUB-ASSY, if you press the engine switch without depressing the clutch pedal, the power mode switches to ACC, and the entry key indicator light in the combination meter ASSY blinks green.

(d) In IG OFF, after you enter the vehicle interior carrying the electrical key transmitter SUB-ASSY, if you depress the clutch pedal, the entry key indicator light in the combination meter ASSY will light up green.

(e) If you press the engine switch when the entry key indicator light of the combination meter ASSY is lit up green, the engine will start.

(5) Changing the power mode when the electrical key transmitter SUB-ASSY doesn't operate properly due to radio wave interference or the battery of the electrical key transmitter SUB-ASSY being drained (for manual transmission):

(a) Use the integrated mechanical key to unlock the door, hold the electrical key transmitter SUB-ASSY, and enter the vehicle interior.

(b) Depress the clutch pedal and hold the ornament side of the electrical key transmitter SUB-ASSY up to the engine switch.

If the entry cancel function has been customized, the power mode changes to ACC.

(6) Starting the engine when the electrical key transmitter SUB-ASSY doesn't operate properly due to radio wave interference or the battery of the electrical key transmitter SUB-ASSY being drained (for manual transmission):

(a) Use the integrated mechanical key to unlock the door, hold the electrical key transmitter SUB-ASSY, and enter the vehicle interior.

(b) Depress the clutch pedal and hold the ornament side of the electrical key transmitter SUB-ASSY up to the engine switch.

(c) The buzzer sounds and the vehicle turns to IGN ON. When the entry key indicator light of the combination meter ASSY lights up green, press the engine switch while depressing the clutch pedal to start the engine.

2. Function inspection for the entry ignition

(1) Inspect the entry ignition function (only for automatic transmission).

(a) In IG OFF, with the shift lever in P, while carrying the electrical key transmitter SUB-ASSY, depress the brake pedal, and check that the entry key indicator light of the combination meter ASSY lights up green. If the entry 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, after putting the vehicle in IG OFF, press the electrical key transmitter SUB-ASSY, and check that the power mode changes in the following way: OFF → ACC ON → IG ON → OFF. However, in IG ON, if the shift lever is in a position other than P, the power mode will not turn OFF but will turn to ACC ON.

(c) Turn off the vehicle's engine, press the engine switch, and check that it turns to IG OFF (the engine stops, and all electrical systems turn off). However, with the vehicle stopped, if the shift lever is in a position other than P, even if you press the engine switch, the power mode will not turn OFF but will turn to ACC ON. 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 operation range of the entry ignition (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 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 may not start.

Perform the inspection from both of these inspection points.

(e) Inspect the operation range of the entry ignition (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.

(2) Check the entry ignition function (only for manual transmission).

(a) In IG OFF, while carrying the electrical key transmitter SUB-ASSY, depress the clutch pedal, and check that the entry key indicator light of the combination meter ASSY lights up green. If the entry 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, after putting the vehicle in IG OFF, press the electrical key transmitter SUB-ASSY, and check that the power mode changes in the following way: OFF → ACC ON → IG ON → OFF.

(c) Turn off the vehicle's engine, press the engine switch, and check that it turns to IG OFF (the engine stops, and all electrical systems turn off). Open the door and check that the steering lock operates.

*a	Inspection point

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 may not start.

(e) Inspect the operation range of the entry ignition (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.

3. Check the power mode change function

(1) Check the engine switch.

(a) With automatic transmission: check that the power mode changes based on the following table.

Shift position	Brake pedal	Power mode when the engine switch is pressed
P	Don't step on	Off → On (ACC) → On (IG) → off
P	Don't step on	Engine operation → off
P	Don't step on	On (ACC) *1 → off
P	Step on	Off → The engine starts.
P	Step on	On (ACC) → The engine starts.
P	Step on	On (IG) → The engine starts.
P	Step on	Engine operation → off
P	Step on	On (ACC) *1 → off
N	Don't step on	Off → On (ACC) → On (IG) (After the power mode changed to On [IG], each time you press the engine switch, the power mode switches between On [IG] and On [ACC].)
N	Don't step on	Engine operating → On (ACC)
N	Step on	Off → The engine starts. *2
N	Step on	On (ACC) → The engine starts. *2
N	Step on	On (IG) → The engine starts. *2
N	Step on	Engine operating → On (ACC)
The shift lever is not in P or in N.	Don't step on	Off → On (ACC) → On (IG) (After the power mode changed to On [IG], each time you press the engine switch, the power mode switches between On [IG] and On [ACC].)
The shift lever is not in P or in N.	Don't step on	Engine operating → On (ACC)
The shift lever is not in P or in N.	Step on	Off → On (IG)
The shift lever is not in P or in N.	Step on	On (ACC) → On (IG)
The shift lever is not in P or in N.	Step on	Engine operating → On (ACC)

·*1: This situation only applies to cases where the power mode changed from On (IG) to On (ACC).
·*2: Only in cases when the steering lock was unlocked.

(2) With manual transmission:

·Check that the power mode changes based on the following table.

Clutch pedal	Power mode when the engine switch is pressed
Don't step on	Off → On (ACC) → On (IG) → off
Don't step on	Engine operation → off
Step on	Off → The engine starts.
Step on	On (ACC) → The engine starts.
Step on	On (IG) → The engine starts.
Step on	Engine operation → off

4. Check the display for the power mode change

(1) Check the entry key indicator.

Indicator unit inspection

Engine switch	Indicator
Off (Excluding conditions where the engine could start)	Off
On (ACC) (Excluding conditions where the engine could start*)	Blinking green
On (IG) (Excluding conditions where the engine could start*)	Blinking green
Conditions where the engine could start and shift P	Lit up green
After the engine starts	Off

*: Excluding conditions where the engine could start, as following:

With automatic transmission

The engine starts if the engine switch is pressed in the following conditions.
Condition 1	All conditions are met: ·The power mode switched from on (IG) to on (ACC). ·Key confirmation* or the engine immobilizer is unset (the engine switch is on (ACC) or on (IG)). ·The shift lever is in N (steering lock is unlocked). ·The stop light switch is on.
Condition 2	All conditions are met: ·The power mode is not switched from on (IG) to on (ACC). ·Key confirmation* or the engine immobilizer is unset (the engine switch is on (ACC) or on (IG)). ·The shift lever is in P or in N. ·The stop light switch is on.

With manual transmission

The engine starts if the engine switch is pressed when the following conditions are met.
Condition 1	All conditions are met: ·Key confirmation* or the engine switch is on (ACC) or on (IG). ·The clutch start switch is on.

·*: When the electrical key transmitter SUB-ASSY is in the vehicle interior, the ID code sent as a result of the communication between the electrical key transmitter SUB-ASSY and the collation ECM (smart key ECM ASSY) and the ID code calculated by the collation ECM (smart key ECM ASSY) are compared. If these ID codes match, the vehicle recognizes that the electrical key transmitter SUB-ASSY is in the vehicle interior.

(a) List of indicator conditions

Indicator	Vehicle status
Off	Any condition is met: 1. The engine is turning. 2. With the engine switch off, the vehicle is in a state where even if the engine switch is pressed, the engine won't start.
Lit up green	All the following conditions are met, the vehicle is in a state where if the engine switch is pressed, the engine will start. The electrical key transmitter SUB-ASSY is in the vehicle interior, the stop light switch ASSY 1 or the clutch start switch ASSY 2 is on, and the shift lever is in P *1.
Blinking green (Blinking slowly)	With the engine switch in on (ACC) or on (IG), the vehicle is in a state where even if the engine switch is pressed, the engine won't start.
Blinking green (Blinking quickly)	If the power is on, or the engine is started, the steering wheel is unlocked (steering lock is stuck). When the steering wheel is unlocked, the indicator begins blinking. When 30 seconds have passed since the blinking began, if the power is on, or if the engine was started again, the indicator stops blinking.
Blinking yellow	A defect is found in the steering lock ECM. If it is determined that there is a defect in the steering lock ECM or in the collation ECM (smart key ECM ASSY), the indicator begins blinking. If the ECM returns to its normal status, or if 15 seconds have passed since the blinking started, the indicator stops blinking.

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

If the shift lever is in the N position, the engine can start only when the steering wheel is unlocked. (With automatic transmission)

CUSTOMIZE PARAMETERS

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

(1) Customizing with the SSM3

·When the customer requests a change in a function, first make sure that the function can be customized.
·Be sure to make a note of the current setting before customizing.
·When troubleshooting a function, first make sure that the function is set to the default setting.

The items in the table below can be customized.

(a) Connect the SSM3 to the DLC3.

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

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

(e) 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)
[Smart Cancel]	OFF	Function that enables or disables the entry and start system.	OFF or ON	Certification ECU (smart key ECU assembly)

Warning

Display	Default	Content	Setting	Relevant ECU
[Key Low Battery Warning]	ON	Function that 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)

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.
2. 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 the system before inspecting the suspected areas below.

Symptom	Suspected Area	See page
Engine does not start	Refer to "Engine does not Start"
Power Source Mode does not Change to ON (IG and ACC)	Refer to "Power Source Mode does not Change to ON (IG and ACC)"
Power Source Mode does not Change to ON (IG)	Refer to "Power Source Mode does not Change to ON (IG)"
Power Source Mode does not Change to ON (ACC)	Refer to "Power Source Mode does not Change to ON (ACC)"

ECM TERMINAL ARRANGEMENT

·Regarding the collation ECM (smart key ECM ASSY) (entry function related), refer to the following. (Refer to

)
·Regarding the ID code box (immobilizer code ECM), refer to the following. (Refer to

)
·Regarding the steering lock actuator ASSY (steering lock ECM), refer to the following. (Refer to

)

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

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

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

Terminal No. (Terminal symbol)	Input/Output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
D41-4 (ACCD) - chassis ground	Output	ACC signal	20°C (68°F)	81.49 to 118.98 Ω	[ACC relay monitor]
D41-6 (IG1D) - chassis ground	Output	IG1 signal	20°C (68°F)	40.74 to 54.49 Ω	[IG1 relay monitor (outside)]
D41-25 (P) - D48- 11 (GND)*1	Input	Shift lever P position signal	The shift lever is in the P position → the shift lever is not in the P position	40 kΩ or more → 200 Ω or less	[Shift P Signal]
D41-26 (SLP) - D48- 11 (GND)	Input	Steering lock bar position signal	Always	10 kΩ or more	[Steering unlock SW]
D41-27 (SPD) - chassis ground	Input	Vehicle speed signal	Always	30 kΩ or more	[Vehicle Speed]
D41-28 (SSW1) - chassis ground	Input	SSW1 contact signal	The engine switch is being pushed → the engine switch is not being pushed	1 Ω or less → 10 kΩ or more	[Start switch1]
D41-30 (SSW2) - chassis ground	Input	SSW2 contact signal (Back-up for SSW1, and works in the same way as SSW1) NOTE: Backup of SSW1. Works in the same way as SSW1.	The engine switch is being pushed → the engine switch is not being pushed	1 Ω or less → 10 kΩ or more	[Start switch2]
D48-11 (GND) - chassis ground	-	Ground	Always	1 Ω or less	-
D48-5 (N-SW) - chassis ground *1	Input	Neutral switch signal	Shift position P or N → Other than P or N	1V or less → 9 V or more	[Neutral SW/Clutch SW]
D48-10 (CLUT) - chassis ground *2	Input	Clutch switch signal	Except for when the engine in cranking, perform the following operations: remove your foot from the clutch pedal → depress the clutch pedal	1V or less → 9 V or more	[Neutral SW/Clutch SW]
D48-9 (IG2D) - chassis ground	Output	IG2 signal	20°C (68°F)	74.15 to 460.88 Ω	[IG2 relay monitor (outside)]
D48-2 (+B) - chassis ground	Input	+B power supply	Always	11 to 14 V	-
D48-17 (TACH) - chassis ground	Input	Engine speed signal	Always	10 kΩ or more	[Engine conditions]
D48-18 (STP1) - chassis ground *1	Input	Stop light switch signal	Remove your foot from the brake pedal → depress the brake pedal	1 V or more → 9 V or less	[Stop Light Switch 1]

*1: With automatic transmission
*2: With manual transmission
If you cannot get the specified result, there could be a problem in the wiring harnesses.

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

(4) Refer to the table below and measure the voltage and check for a pulse.

Terminal No. (Terminal symbol)	Input/Output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
D41-25 (P) - D48-11 (GND) *1	Input	Shift lever P position signal	The shift lever is in the P position → the shift lever is not in the P position	1.5 V or more → 9 V or less	[Shift P Signal]
D41-4 (ACCD) - D48-11 (GND)	Output	ACC signal	Engine switch off → Engine switch on (ACC)	1 V or less → 8.5 V or more	[ACC relay monitor]
D41-6 (IG1D) - D48-11 (GND)	Output	IG1 signal	Engine switch on (ACC) → Engine switch on (IG)	1V or less → 9 V or more	[IG1 relay monitor (outside)]
D41-26 (SLP) - D48-11 (GND)	Input	Steering lock bar position signal	Steering wheel lock → Steering wheel unlock *3	11 to 14 V → 1.2 V or less	[Steering unlock SW]
D41-27 (SPD) - D48-11 (GND)	Input	Vehicle speed signal	The engine switch on (IG), the vehicle running at approx. 5 km/h {3 MPH}	Pulse generation (Refer to waveform 1)	[Vehicle Speed]
D41-28 (SSW1) - D48-11 (GND)	Input	Engine switch signal	The engine switch is not being pushed → the engine switch is being pushed	9 V or more → 1 V or less	[Start switch1]
D41-29 (SLR+) - D48-11 (GND)	Output	Steering lock motor drive command (motor drive permission signal sent from the collation ECM (smart key ECM ASSY))	Steering lock motor is operated → steering lock motor does not operate → steering lock motor operates *4	Pulse generation (Refer to waveform 2)	-
D41-30 (SSW2) - D48-11 (GND)	Input	SSW2 contact signal NOTE: Backup of SSW1. Works in the same way as SSW1.	The engine switch is not being pushed → the engine switch is being pushed	9 V or more → 1 V or less	[Start switch2]
D48-7 (STSW) - D48-11 (GND)	Output	Starter request signal	Depress the brake pedal 1 or the clutch pedal 2 and press the engine switch (starter on)→ After approx. 1 second, the engine switch is released (starter off)	2V or less → 9 V or more	Starter request signal
D48-5 (N-SW) - chassis ground *1	Input	Neutral switch signal	Shift position P or N → Other than P or N	1V or less → 9 V or more	[Neutral SW/Clutch SW]
D48-10 (CLUT) - chassis ground *2	Input	Clutch switch signal	Except for when the engine in cranking, perform the following operations: remove your foot from the clutch pedal → depress the clutch pedal	1V or less → 9 V or more	[Neutral SW/Clutch SW]
D40-28 (ACCR) - D48-11 (GND)	Input	ACC Relay Cut Signal	Depress the brake pedal 1 or the clutch pedal 2 and press the engine switch (starter on)→ After approx. 1 second, the engine switch is released (starter off)	2V or less → 9 V or more	ACC Relay Cut Signal
D48-17 (TACH) - D48-11 (GND)	Input	Clutch shift position sensor signal	Idle revolutions after the engine is warmed up	Pulse generation (Refer to waveform 3)	[Engine conditions]
D48-9 (IG2D) - D48-11 (GND)	Output	IG2 signal	Engine switch on (ACC) → Engine switch on (IG)	1V or less → 9 V or more	[IG2 relay monitor (outside)]
D48-18 (STP1) - D48-11 (GND)*1	Input	Stop light switch signal	Remove your foot from the brake pedal → depress the brake pedal	1V or less → 9 V or more	[Stop Light Switch 1]

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

·*3: When the shift lever is in P (with automatic transmission), if a door is opened or closed with the engine switch off, the steering is locked. If the key is in the vehicle interior and the engine switch is on (ACC) or on (IG), the steering is unlocked.
·*4: If all the following conditions are met, the steering lock motor operates and the door opens.

·The shift lever is in P (for automatic transmission).
·Holding the electrical key transmitter SUB-ASSY, turn the engine switch on (IG), and after unlocking the steering, turn the engine switch off.

(5) Using an oscilloscope, check the ECM waveform.

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
Tester connection	D41-27 (SPD) - D48-11 (GND)
Tool setting	5 V / DIV., 100 ms. / DIV.
Conditions	The engine switch on (IG), the vehicle running at approx. 5 km/h {3 MPH}

The faster the vehicle speed, the shorter the wavelength becomes.

(b) Waveform 2 (reference)

Item	Contents
Tester connection	D41-29 (SLR+) - D48-11 (GND)
Tool setting	2V/DIV., 200ms./DIV.
Conditions	Steering lock motor is operated → steering lock motor does not operate → steering lock motor operates *1

*a	The steering lock motor does not operate.
*b	The steering lock motor is operating.

*1: If all the following conditions are met, the steering lock motor operates when a door is opened.

·The shift lever is in P. *

·*: for automatic transmission

·When you turn the engine switch on (IG) holding the electrical key transmitter SUB-ASSY, the handle is unlocked.
·The engine switch is off.

Item	Contents
Tester connection	D48-17 (TACH) - D48-11 (GND)
Tool setting	2 V / DIV., 2 ms. / DIV.
Conditions	Idle revolutions after the engine is warmed up

The faster the engine speed, the shorter the wavelength becomes.

2. CHECK ECM

(1) Refer to the table below and measure the resistance and the voltage and check for a pulse.

Terminal No. (Terminal symbol)	Input/Output	Terminal description	Conditions	Specified condition	Related [Current Data Display & Save] item
A36-4 (GNDEG1) - chassis ground	-	Ground	Always	1 Ω or less	-
A33-14 (STSW2) - A36-4 (GNDEG1)	Input	Starter switch signal	Engine switch is ON (IG)	1 V or less	[Starter control]
A33-14 (STSW2) - A36-4 (GNDEG1)	Input	Starter switch signal	Cranking	6 to 13 V	[Starter control]
A33-16 (NEUT) - A36-4 (GNDEG1)	Input	Neutral switch signal	The engine switch is on (IG), the shift lever is not in P or N.	10 to 13 V	-
A33-16 (NEUT) - A36-4 (GNDEG1)	Input	Neutral switch signal	The engine switch is on (IG), the shift lever is in P or N.	1 V or less	-
A33-17 (START) - A36-4 (GNDEG1)	Input	Starter request signal	Engine switch is ON (IG)	1 V or less	-
A33-17 (START) - A36-4 (GNDEG1)	Input	Starter request signal	Cranking	6 V or more	-
A35-15 (TACHO) - A36-4 (GNDEG1)	Output	Engine speed signal	Idle revolutions after the engine is warmed up	Pulse generation (Refer to waveform 1)	Engine speed
A35-26 (STRLY) - A36-4 (GNDEG1)	Output	Starter relay signal	Engine switch is ON (IG)	11 to 14 V → 1 V or less	[Starter signal]
A35-26 (STRLY) - A36-4 (GNDEG1)	Output	Starter relay signal	Cranking	1 V or less	[Starter signal]
A35-32 (ACCR) - A36-4 (GNDEG1)	Output	ACC Relay Cut Signal	Engine switch is ON (IG)	10 to 13 V	-
A35-32 (ACCR) - A36-4 (GNDEG1)	Output	ACC Relay Cut Signal	Cranking	1 V or less	-
A35-34 (STCTRLY) - A36-4 (GNDEG1)	Output	Starter relay cut signal	Engine switch is ON (IG)	10 to 13 V	[Starter cut relay]
A35-34 (STCTRLY) - A36-4 (GNDEG1)	Output	Starter relay cut signal	Cranking	1 V or less	[Starter cut relay]

*1: With automatic transmission
*2: for manual transmission
*3: With double locking function
*4: Without double locking function
If you cannot get the specified result, there could be a problem in the ECM.

(2) Inspect using an oscilloscope.

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

(a) Waveform 3 (reference)

Item	Contents
Tester connection	A35-15 (TACHO) - A36-4 (GNDEG1)
Tool setting	2 V / DIV., 2 ms. / DIV.
Conditions	Idle revolutions after the engine is warmed up

The faster the engine speed, the shorter the wavelength becomes.

DIAGNOSIS SYSTEM

1. Description of functions

(1) Entry and start system (for start function) data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the SSM3 to check for malfunctions and perform repairs.

2. Check DLC3

(1) Check DLC3.

3. INSPECT BATTERY VOLTAGE

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

Standard voltage : 11 to 14 V

DTC CHECK / CLEAR

If the SSM3 is connected to the vehicle with the engine switch off, the information stored in entry and start system related ECUs (the certification ECU and main body ECU) cannot be read. However, entry and start system DTCs and [Current Data Display& Save] information can be confirmed even if the engine switch is off using the method below:

1. CHECK DTC (POWER SOURCE CONTROL)

(4) Enter the following menus: [Keyless access system] → [Power Supply ECM] → [Diagnostic Code(s) Display]

(5) Check for DTCs.

Refer to the SSM3 operator's manual for further details.

2. CHECK DTC (ENTRY AND START)

(4) Enter the following menus: [Keyless access system]→ [Collation ECM] → [Diagnostic Code(s) Display]

(5) Check for DTCs.

Refer to the SSM3 operator's manual for further details.

3. CHECK DTC (ENGINE AND ECT)

(4) Enter the following menus: [Engine Control System] → [Diagnostic Code(s) Display]

(5) Check for DTCs.

Refer to the SSM3 operator's manual for further details.

4. CLEAR DTC (POWER SOURCE CONTROL)

(4) Enter the following menus: [Keyless access system] → [Power Supply ECM] → [Clear Memory]

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

Refer to the SSM3 operator's manual for further details.

5. CLEAR DTC (ENTRY AND START)

(4) Enter the following menus: [Keyless access system]→ [Collation ECM] → [Clear Memory]

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

Refer to the SSM3 operator's manual for further details.

6. CLEAR DTC (ENGINE AND ECT)

(4) Enter the following menus: [Engine Control System] → [Clear Memory]

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

Refer to the SSM3 operator's manual for further details.

CURRENT DATA DISPLAY & SAVE / SYSTEM OPERATION CHECK MODE

1. Current Data Display & Save

By using the SSM3 and reading [Current Data Display & Save], you can read the statuses and values for switches, sensors, actuators, and other items without removing 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.

The normal values written in the chart below are for reference. Do not depend on reference value only when judging if the part is faulty.

(4) Input the following menus: [Keyless access system] → [Collation ECM] → [Current Data Display & Save], or [Integ. unit mode] → [Current Data Display & Save], or [Brake Control System] → [ABS/VDC System] → [Current Data Display & Save],or [Engine Control System] → [Current Data Display & Save]

SSM3 screen: [Each System Check] → [Keyless access system] → [Power Supply ECM] → [Current Data Display & Save]

Item Name	Description/display range	Normal value	Remarks
[Shift P signal] *1	Shift position is P Display range: [ON]/[OFF]	[ON]: The shift is in the P position [OFF]: The shift is not in the P position	Use this item to find out if the shift switch (P) is faulty.
[Steering unlock SW]	This item indicates the steering unlock sensor signal output from the steering lock actuator. Display range: [ON]/[OFF]	[ON]: Steering unlocked [OFF]: Steering locked	·In IG OFF and with the shift in the P position (transmission A/T), open (or close) one of the doors to lock the steering. ·Change the power status to ACC ON or IG ON with the electrical key transmitter SUB-ASSY (electronic key) in the vehicle to unlock the steering. ·The engine cannot be started when the steering unlock signal is OFF.
[Stop Light Switch 1]	Brake pedal status Display range: [ON]/[OFF]	[ON]: Depressing the brake pedal [OFF]: Brake pedal is released	·Use this item to find out if the stop light switch is faulty. ·If the engine cannot be started due to a malfunction in the stop light switch signal, “OFF” is displayed. ·In case of a malfunction, you can start the engine by holding down the push button start switch.
[System SW1]	Push button start switch 1 status Display range: [ON]/[OFF]	[ON]: Push button start switch is pressed [OFF]: Push button start switch is released	·This item may not be displayed if the push button start switch is pressed too quickly. ·Use this item to find out if the push button start switch input signal is faulty.
[System SW2]	Push button start switch 2 status Display range: [ON]/[OFF]	[ON]: Push button start switch is pressed [OFF]: Push button start switch is released	·Back-up for push button start switch 1. However, when operating by holding down the push button start switch, if both push button start switch 1 and push button start switch 2 are not functioning properly, the control will not operate. ·This switch operates in the same way as push button start switch 1.
[Neutral SW/Clutch SW (AT model)]	Shift position (P, N) status Display range: [ON]/[OFF]	[ON]: The shift is in the P or N position [OFF]: The shift is not in the P or N position	·Use this item to find out if the neutral start switch is faulty. ·If the engine cannot be started due to a malfunction in the neutral start switch, “OFF” is displayed.
[Neutral SW/Clutch SW (MT model)]	Clutch pedal status Display range: [ON]/[OFF]	[ON]: Depressing the clutch pedal [OFF]: Clutch pedal is released	·Use this item to find out if the clutch start switch is faulty. ·If the engine cannot be started due to a malfunction in the clutch start switch, “OFF” is displayed.
[IG1 relay monitor (outside)]	Coil voltage monitor status for the IG1 relay Display range: [ON]/[OFF]	[ON]: IG ON [OFF]: IG OFF	·Use this item to find out if the IG1 relay is faulty. ·When in ACC ON, “OFF” is displayed.
[IG1 relay monitor (inside)]	Drive output monitor status for the IG1 relay Display range: [ON]/[OFF]	[ON]: IG ON [OFF]: IG OFF	·Use this item to find out if the IG1 relay is faulty. ·When in ACC ON, “OFF” is displayed.
[IG2 relay monitor (outside)]	Coil voltage monitor status for the IG2 relay Display range: [ON]/[OFF]	[ON]: IG ON [OFF]: IG OFF	·Use this item to find out if the IG2 relay is faulty. ·When in ACC ON, “OFF” is displayed.
[IG2 relay monitor (inside) ]	Drive output monitor status for the IG2 relay Display range: [ON]/[OFF]	[ON]: IG ON [OFF]: IG OFF	·Use this item to find out if the IG2 relay is faulty. ·When in ACC ON, “OFF” is displayed.
[Starter request signal monitor]	Engine start request signal status Display range: [ON]/[OFF]	[ON]: With the shift in the P position, depressing the brake, press and hold the push button start switch (transmission A/T) [ON]: Depressing the clutch pedal, press and hold the push button start switch (transmission M/T) [OFF]: After approx. 1 second, release the push button start switch	·If the engine cannot be started due to a malfunction in the start request signal, “OFF” is displayed. ·If you press the push button start switch for a short time, the time “ON” is displayed will be very short. Therefore, you must press and hold it for a while.
[ACC relay monitor]	ACC relay drive status Display range: [ON]/[OFF]	[ON]: ACC ON OFF: ACC OFF	·When in IG ON, “ON” is displayed. ·When the engine is cranking, “OFF” is displayed.
[ACC Relay Cut Signal]	ACC relay cut signal input status Display range: [ON]/[OFF]	[ON]: When cranking [OFF]: When not cranking	-
[Engine Speed]	Engine status Display range: [Stopped] / [rotating]	[Rotating]: The engine is rotating [Stopped]: The engine is stopped	-
[Vehicle speed signal]	Vehicle running/stopped status Display range: [Stopped status] / [Drive status]	[Drive status]: The vehicle is running (at 5 km/h or faster) [Stopped status]: The vehicle is stopped	-
[Power supply status]	Power status Display range: [All OFF status]/ [ACC relay ON status] / [IG1 relay ON status] / [IG2 relay ON status] / [ST status]	[All OFF]: ACC OFF and IG OFF [ACC ON]: ACC ON [IG1 ON]: IG ON [IG2 ON]: IG ON [st]: Start request signal transmitting	Because “IG1 ON” and “IG2 ON” are displayed almost simultaneously, you may not be able to see the “IG1 ON” indication. (Because “IG1 ON” is displayed for a short time.)
[Powertrain Type]	Vehicle identification status Display range: [Cnv-MT] / [Cnv-AT]	[Cnv-AT]: A conventional A/T vehicle (A/T vehicle not equipped with HV) [Cnv-MT]: A conventional M/T vehicle	-
[IG1 outside circuit abnormal]	Malfunction in the coil-side circuit for the IG1 relay Display range: [Yes] / [No]	[Yes]: Circuit not functioning properly [No]: Circuit functioning properly	·Use this item to find out if the IG1 relay is faulty. ·If the engine cannot be started due to a malfunction in the IG1 relay, “OFF” is displayed.
[IG2 outside circuit abnormal]	Malfunction in the coil-side circuit for the IG2 relay Display range: [Yes] / [No]	[Yes]: Circuit not functioning properly [No]: Circuit functioning properly	·Use this item to find out if the IG2 relay is faulty. ·If the engine cannot be started due to a malfunction in the IG2 relay, “OFF” is displayed.
[Start-stop SW fault]	This item detects a mismatch between the push button start switch 1 signal and the push button start switch 2 signal. Display range: [Yes] / [No]	[Yes]: Switch not functioning properly (mismatch between the signals of push button start switches 1 and 2) [No]: switches functioning properly	You can start the engine even when the result is “[Yes]”. However, you cannot use the “emergency IG OFF when running” or “emergency engine start when the brake is faulty” functions that are operated by pressing and holding the push button start switch.
[Park Signal Mismatch]	Shift position (P) signal malfunction Display range: [Yes] / [No]	[Yes]: Signal not functioning properly (mismatch between the CAN communication and direct signal statuses) [No]: Signals functioning properly	You can switch to OFF even when the result is “[Yes]”. (vehicle will not be left ACC ON or IG ON.)
[Steering lock unlock wait time-out]	Malfunction in the steering lock / unlock function Display range: [Yes] / [No]	[Yes]: Lock/unlock not functioning properly (Example: the lock bar gets stuck) [No]: Lock/unlock functioning properly	If the engine cannot be started due to a malfunction in the steering lock/unlock, “[Yes]” is displayed.
[Key collation wait time-out]	Key collation malfunction Display range: [Yes] / [No]	[Yes]: Collation not functioning properly (A collation malfunction is detected when the ID code sent from the electronic key and the ID code recorded in the Collation ECM do not match.) [No]: Collation functioning properly	If the engine cannot be started due to a key collation malfunction, “[Yes]” is displayed.
[Shift N signal*1]	Shift in position N Display range: [ON]/[OFF]	[ON]: The shift is in the N position [OFF]: The shift is not in the N position	Use this item to find out if the shift switch (N) is faulty.

*1: Automatic transmission
*2: Transmission M/T

2. Using the SSM3 and [Current Data Display & Save], identify if there is a problem or not, and narrow down the location of the problem.

Get into the vehicle carrying the electrical key transmitter SUB-ASSY (electronic key) with you, and perform the following operations with the power status in IG OFF and the shift in position P to check the result for each [Current Data Display & Save] item.

*1: Press the push button start switch without depressing the brake pedal, and check that the power status changes to ACC ON.
*2: Press the push button start switch without depressing the brake pedal, and check that the power status changes to IG ON.
*3: Depress the brake pedal. (Stop light switch ON)
*4: Press the push button start switch while depressing the brake pedal, and check that the engine starts.
*5: Press the push button start switch while depressing the brake pedal, and check that the power status changes to IG OFF.
*6: Release the brake pedal.
*7: Open a door.

Get into the vehicle carrying the electrical key transmitter SUB-ASSY (electronic key) with you, and perform the following operations with the power status in IG OFF to check the result for each [Current Data Display & Save] item.

*1: Press the push button start switch without depressing the clutch pedal, and check that the power status changes to ACC ON.
*2: Press the push button start switch without depressing the clutch pedal, and check that the power status changes to IG ON.
*3: Depress the clutch pedal. (Clutch start switch ON)
*4: Press the push button start switch while depressing the clutch pedal, and check that the engine starts.
*5: Press the push button start switch while depressing the clutch pedal, and check that the power status changes to IG OFF.
*6: Release the clutch pedal.
*7: Open a door.

SSM3 screen: [Each System Check] → [Keyless access system check] → [Collation ECM] → [Current Data Display & Save]

Item Name	Description/display range	Normal value	Remarks
[Ignition]	This item indicates the IG power input status of the smart key ECM ASSY (collation ECM). Display range: [ON]/[OFF]	[ON]: IG ON [OFF]: IG OFF	When in ACC ON, “OFF” is displayed.
[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. NOTE: ·The security indicator light blinks when [Set] is displayed for this item. ·The security indicator light is associated with the set/unset status of the immobilizer, but not with the lock/unlock status of the steering wheel.
[Sleep possible status]	This item indicates the sleep enabled status of the steering lock ECM. Display range: [Sleep-mode possible] / [Sleep-mode not possible]	[Sleep-mode possible]: Sleep mode can be used [Sleep-mode not possible]: Sleep mode can not be used	-
[Wake-up transmission status]	This item indicates the transmission status of the wake-up signal for the steering lock ECM. Display range: [Yes] / [No]	[Yes]: The wake-up signal is transmitted [No]: The wake-up signal is not transmitted	-
[Lock confirmation]	This item indicates the lock confirmation status of the steering lock actuator ASSY (steering lock ECM). Display range: [Set] / [UnSet]	[Set]: The lock is set [UnSet]: The lock is not set	When “[UnSet]” is displayed, the steering is not locked.
[Unlock confirmation]	This item indicates the unlock confirmation status of the steering lock actuator ASSY (steering lock ECM). Display range: [Set] / [UnSet]	[Set]: The unlock is set. [UnSet]: The unlock is not set.	When “[Unset]” is displayed, the steering is not locked. (The engine cannot be started.)
[Engine start]	This item indicates the status of the engine start permission signal, which is decided by the steering actuator ASSY (steering lock ECM) and sent to the smart key computer (collation ECM). Display range: [OK] / [NG]	[OK]: The engine is permitted to start [NG]: The engine is prohibited from starting	·If “OK” is displayed for this item, the smart key ECM ASSY (collation ECM) receives the unlock confirmation signal from the steering lock actuator ASSY (steering lock ECM) and enables fuel injection and the engine to start. ·When “[NG]” is displayed for this item, you cannot start the engine.
[Sensor abnormal (past)]	This item indicates a history of malfunctions in the position sensor inside the steering lock actuator ASSY (steering lock ECM). Display range: [NG(Past)] / [OK]	[NG(Past)]: There is an error history (Both the lock and unlock sensors inside the steering lock actuator ASSY (steering lock ECM) were ON at the same time. Normally, these sensors are not ON at the same time.) [OK]: There is no error history for the lock and unlock sensors inside the steering lock actuator ASSY (steering lock ECM).	If “[NG(Past)]” is displayed for this item, the problem might be caused by a malfunction of the position sensor inside the steering lock actuator ASSY or a mechanical failure.
[Motor power supply short-circuit abnormal (past)]	This item indicates a history of malfunctions (circuit shorts) in the signal transmitted from the smart key ECM ASSY (collation ECM) to the steering lock actuator ASSY (steering lock ECM). Display range: [NG(Past)] / [OK]	[NG(Past)]: There is a history of motor power supply short circuit [OK]: There is no history of motor power supply short circuit	This item displays the history when a circuit malfunction occurs between the smart key ECM ASSY (collation ECM) and the steering lock actuator ASSY (steering lock ECM).
[Motor driver short-circuit abnormal (past)]	This item indicates a history of malfunctions (circuit shorts) in the motor drive circuit inside the steering lock actuator ASSY (steering lock ECM). (The diagnostic code B2781 is output) Display range: [NG(Past)] / [OK]	[NG(Past)]: A history of motor driver short circuit is output [OK]: No history of motor driver short circuit is output	This item indicates the malfunctions in the steering lock motor drive circuit inside the steering lock actuator ASSY (steering lock ECM).
[Steering lock lock/unlock command reception history]	This item indicates the unlock request signal reception history. Display range: [Unrec] / [Rec]	[Rec]: There is a history of the unlock request signal being received [Unrec]: There is no history of the unlock request signal being received	-
[Lock bar engagement abnormal (history)]	This item indicates a history of times when the steering lock bar was driven to the unlock position for a certain period of time but the steering wheel could not be properly unlocked. Display range: [With] / [Without]	[With]: There is a lock bar engagement history [Without]: There is no lock bar engagement history	-
[Push start abnormal]	This item indicates a history of push start malfunctions caused by the steering lock actuator ASSY (steering lock ECM). Display range: [NG(Past)] / [OK]	[NG(Past)]: There is a push start error history [OK]: There is no push start error history	-
[EEPROM access abnormal]	This item indicates the steering lock ECM status. Display range: [NG(Past)] / [OK]	[Abnormal]: Steering lock ECM not functioning properly [Normal]: Steering lock ECM functioning properly	-
[Engine start permission request reception status]	This item indicates the reception status of the engine start permission signal, which is decided by the steering lock actuator ASSY (steering lock ECM) and sent to the smart key ECM ASSY (collation ECM). Display range: [NG] / [OK]	[NG]: Signal not received [OK]: Signal received	·If “[OK]” is displayed, the smart key ECM ASSY (collation ECM) has received the unlock confirmation signal from the steering lock actuator ASSY (steering lock ECM) and the engine injection and ignition have been permitted. ·If “[NG]” is displayed for this item, the engine cannot be started.
[L Code Check]	This item indicates the result of collation between the smart key ECM ASSY (collation ECM) and the steering lock actuator ASSY (steering lock ECM). Display range: [NG(Past)] / [OK]	[Abnormal]: Collation not functioning properly [Normal]: Collation functioning properly	·The L code is not registered for the smart key ECM ASSY (collation ECM) or the steering lock actuator ASSY (steering lock ECM). ·The steering cannot be locked. ·The steering cannot be unlocked. (The engine cannot be started.)
[Steering lock unlock request reception status]	This item indicates the unlock request signal reception status. Display range: [NG(Past)] / [OK(10s)]	[NG(Past)]: Not doing IG ON, ACC ON, or engine start operations [OK(10s)]: 10 seconds since IG ON, ACC ON, or engine start operations were done	·If the unlock request signal is not received, the engine cannot be started. ·If the steering unlock conditions are met but “[OK(10s)]” is not displayed, the smart key ECM ASSY (collation ECM) might have a malfunction.
[Steering lock lock request reception status]	This item indicates the lock request signal reception status. Display range: [OK(10s)] / [NG(Past)]	[OK(10s)]: The lock request signal is received for 10 seconds after a door is opened with the shift in the P position (transmission A/T) and the power status in IG OFF. [NG(Past)]: Anything other than the above	If the steering lock conditions are met but “[OK(10s)]” is not displayed, the smart key ECM ASSY (collation ECM) might have a malfunction.
[L Code Collation result history]	This item indicates the history of the results of collation between the smart key ECM ASSY (collation ECM) and the steering lock actuator ASSY (steering lock ECM). Display range: [NG(Past)] / [OK]	[NG(Past)]: There is an error history of collation results [OK]: There is no error history of collation results	-
[S Code Check]	This item indicates the collation result between the smart key ECM ASSY and the ID code box. Display range: [NG(Past)] / [OK]	[Abnormal]: Collation not functioning properly [Normal]: Collation functioning properly	·The S code has not been registered for the smart key ECM ASSY or the ID code box. ·The engine cannot be started.
[S Code Collation result history]	This item indicates the collation result history between the smart key ECM ASSY and the ID code box. Display range: [NG(Past)] / [OK]	[NG(Past)]: There is an error history of collation results [OK]: There is no error history of collation results	-

Get into the vehicle carrying the electrical key transmitter SUB-ASSY (electronic key) with you, and perform the following operations with the power status in IG OFF and the shift in position P (transmission A/T) to check the result for each [Current Data Display & Save] item.

*1: Press the push button start switch without depressing the brake pedal (transmission A/T) or the clutch pedal (transmission M/T). Check that the power status switches to ACC ON.
*2: Press the push start switch without depressing the brake pedal (transmission A/T) or the clutch pedal (transmission M/T). Check that the power status switches to IG ON.
*3: Press the push button start switch and check that the power status switches to IG OFF.
*4: Open a door. (The steering wheel is now locked).

SSM3 display: [Each System Check] → [Engine Control System] → [Current Data Display & Save]

Item Name	Description/display range	Normal value	Remarks
[Engine Speed]	Indicates the engine speed Display range: 0 to 16383.75 r / min	Varies depending on the engine speed	-
[Starter Switch]	Starter drive request Display range: [ON]/[OFF]	[ON]: The starter drive request is output. [OFF]: No starter drive request is output.	If there is a malfunction, the engine cannot be cranked.
[Starter cut relay]	This item indicates the starter cut relay status. Display range: [ON]/[OFF]	[ON]: The starter cut relay is ON [OFF]: The starter cut relay is OFF	”ON” is displayed when the engine cannot be cranked.
[Shift SW Status (P Range)] *1	This item indicates the neutral start switch status. Display range: [ON]/[OFF]	[ON]: The shift is in the P position [OFF]: The shift is not in the P position	If there is a malfunction, the engine cannot be cranked.
[Shift SW Status (N Range)] *1	This item indicates the neutral start switch status. Display range: [ON]/[OFF]	[ON]: The shift is in the N position [OFF]: The shift is not in the N position	If there is a malfunction, the engine cannot be cranked.
[ST1]	This item indicates the signal from the stop light switch ASSY. Display range: [ON]/[OFF]	[ON]: Depressing the brake pedal [OFF]: Brake pedal is released	-
[Ignition Switch]	This item indicates the IG2 status. Display range: [ON]/[OFF]	[ON]: IG2 relay is ON [OFF]: IG2 relay is OFF	-

*1: Automatic transmission

Perform the following operations to check the result for each [Current Data Display & Save] item.

*1:

·Transmission A/T: With the power status in IG ON and the shift in position P, depress the brake pedal and press the push button start switch. Check that the engine starts.
·Transmission M/T: With the power status in IG ON, depress the clutch pedal and press the push button start switch. Check that the engine starts.

SSM3 screen: [Each System Check] → [Brake Control System] → [ABS/VDC System] → [Current Data Display & Save]

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)	-

3. System Operation Check Mode

(1) Turn the ignition switch to OFF.

(2) Connect the SSM3 to the DLC3.

(3) Turn the ignition switch to ON, select [Keyless access system] → [Power Supply ECM] → [Work Support] → [System Operation Check Mode], and display the [System Operation Check Mode] list.

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

SSM3 screen: [Each System Check] → [Keyless access system] → [Power Supply ECM] → [Work Support] → [System Operation Check Mode]

Item Name	Part to be forcibly driven	Drive	Remarks
[Steering lock power supply]	Smart key computer ASSY (collation ECM)	Supply/stop	When in IG ON
[STSW]	Smart key computer ASSY (collation ECM)	Supply/stop	Perform cranking in order to turn the starter switch ON. Be very careful regarding the service operation. When forcibly driving this item, implement it with the ignition ON.
[IG2]	Smart key computer ASSY (collation ECM)	Supply/stop	Turn the ignition power (relay upstream battery side) ON. If you forcibly drive this item, there may be failure codes registered for the engine, transmission, and the VDC unit. In that case, you must clear the failure codes.
[IG1]	Smart key computer ASSY (collation ECM)	Supply/stop	Turn the ignition power (relay upstream alternator side) ON. If you forcibly drive this item, there may be failure codes registered for the engine, transmission, and the VDC unit. In that case, you must clear the failure codes.
[ACC]	Smart key computer ASSY (collation ECM)	Supply/stop	Turn the ACC power ON.

SSM3 screen: [Each System Check] → [Keyless access system] → [Collation ECM] → [Work Support] → [System Operation Check Mode]

Item Name	Part to be forcibly driven	Drive	Remarks
[Power/Engine SW Light]	Push button start switch illumination	Output/stop	Push button start switch illumination OFF (15 seconds or more since ON→OFF) and in ACC ON, IG ON, or the engine is turning.

DIAGNOSTIC TROUBLE CODE CHART

DTC Code	Detection Item	DTC Output Confirmation Operation
B2271	[IGN fuse blown or IGN circuit fault]	Turn the engine switch on (IG).
B2274	[ACC circuit abnormal]	Wait 10 seconds after turning the engine switch on (ACC) or on (IG), and then wait another 10 seconds after turning the engine switch off.
B2275	[STSW circuit abnormal]	Start the engine.
B2276	[ACCR signal abnormal]	Start the engine.
B2277	[Submerging circuit abnormal]	Submerging circuit monitor result = ON
B2282	[Vehicle speed signal abnormal]	Drive the vehicle for 20 seconds at a vehicle speed of 25 km/h (16MPH) or more, and then drive the vehicle at a vehicle speed of less than 5 km/h {3MPH} for 20 seconds.
B2283	[Vehicle speed sensor fault detection]	In IG ON, any of the following conditions is established. ·Direct connection vehicle speed pulse showing 50 km/h or more continues for 10 seconds, then the CAN and direct connection speed pulses both turn to 0 km/h within 1 second. ·In an AT vehicle, CAN and the direct connection show 0 km/h, the engine speed (according to the direct connection) is 2000 r/min or more, the shift lever is not in P or N, and ACCR is not in LOW level for 300 seconds. ·In an MT vehicle, CAN and the direct connection show 0 km/h, the engine speed (according to the direct connection) is 2000 r/min or more, the N position for the shift lever is OFF, the clutch switch is OFF, and ACCR is in the LOW level for 300 seconds.
B2284	[Brake Signal (Cable-Information does not match to BEAN-Information)]	Connect the cable to the negative (-) battery terminal, release the brake pedal and wait 20 seconds or more. Then depress the brake pedal for 20 seconds or more.
B2285	[Steering lock position signal abnormal]	Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and then reconnect the cable to the negative (-) battery terminal. Wait 40 seconds or more with the engine switch off (with the steering wheel locked), then turn the engine switch on (ACC) (with the steering wheel unlocked) and wait 40 seconds or more.
B2286	[Run able Signal (Cable-Information does not match to BEAN-Information)]	Disconnect the cable from the negative (-) battery terminal, wait 30 seconds and reconnect the cable to the negative (-) battery terminal. Wait 20 seconds or more with the engine switch off, then start the engine and maintain an engine speed of 1000 r/min or more for 20 seconds or more after starting the engine.
U0073	Control module communication bus “A” off	10 or more seconds have passed after IG ON
U0100	[Lost Communication With ECM/PCM "A"]	10 or more seconds have passed after IG ON
U0101	[Lost Communication With TCM]	10 or more seconds have passed after IG ON
U0122	Lost Communication With Vehicle Dynamics Control Module	10 or more seconds have passed after IG ON
U0140	Lost Communication With Body Control Module	10 or more seconds have passed after IG ON
U0155	[Nonarrival of H-CAN data(METER)]	10 or more seconds have passed after IG ON
U0401	[Invalid Data Received From ECM/PCM “A”]	10 or more seconds have passed after IG ON
U0422	Invalid Data Received From Body Control Module	10 or more seconds have passed after IG ON

DTC	B2271	[IGN fuse blown or IGN circuit fault]

This DTC is output when a problem is detected in the IG1 drive circuit, the IG2 drive circuit, or the IG hold circuit in the collation ECM (smart key ECM ASSY).

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2271	Meet any of the conditions (1-trip detection logic*1): ·There is a problem in the IG1 or IG2 drive of the collation ECM (smart key ECM ASSY). ·There is a problem in the 1G hold circuit of the collation ECM (smart key ECM ASSY).	·AM2 No. 2 fuse ·Collation ECM (smart key ECM ASSY) ·Wiring harness or connector	Turn the ignition switch to ON. NOTE: To turn the engine switch to on (IG), hold the key, move the shift lever into P or N 2, remove your foot from the break pedal 2 or the clutch *3, and press the engine switch 2 times.

*1: The code is output only when the problem is found and the engine switch is on (IG).
*2: With automatic transmission
*3: for manual transmission

·The IG1 and IG2 drive circuits drive the IG1 and IG2 relays.
·Even if the collation ECM (smart key ECM ASSY) performs an inaccurate operation, if the IG1 drive circuit and the IG2 drive circuit are on, the IG hold circuit will hold the engine switch in an on (IG) status.

Vehicle status and failsafe function when a problem is detected

Vehicle status when a problem is detected	Failsafe function when a problem is detected
The power mode cannot be changed to on (IG). (the engine does not start)	The power mode does not change to on (IG).

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2271	Power supply ·[IG1 relay monitor (outside)] ·[IG2 relay monitor (outside)] Engine ·[Ignition]	-

·The entry & start system has functions that use the CAN communication. Before performing troubleshooting, perform the inspection in “How to troubleshoot”, and check that there are no communication problems. (Refer to

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

)
·After repair, perform the [DTC output confirmation operation], and check that the DTC is not output again.
·Before performing the following inspection steps, check the fuses related to this system.

1. Checking the harnesses and connectors (power supply)

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

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

Voltage

Inspection terminals	Inspection conditions	Standard value
D48-2 (+B) - chassis ground	Always	9.5 to 16 V

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

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

2. Checking the harnesses and connectors (grounding)

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

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

>Repair or replacement of the harnesses or connectors

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

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

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

Connector connected
(Collation ECM (smart key ECM ASSY))

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

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

Inspection terminals	Inspection conditions	Standard value
D41-6 (IG1D) - chassis ground	Engine switch on (ACC) → Engine switch on (IG)	1V or less → 9 V or more
D48-9 (IG2D) - chassis ground	Engine switch on (ACC) → Engine switch on (IG)	1V or less → 9 V or more

Complete (Possibly temporary poor contact)

DTC	B2274	[ACC circuit abnormal]

This DTC is output when a problem is detected in the ACC output circuit between the ACC output terminal of the collation ECM (smart key ECM ASSY) and the ACC relay.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2274	There is a problem in the ACC relay drive circuit in the vehicle exterior circuit or in the collation ECM (smart key ECM ASSY) (1 trip detection logic *1). NOTE: If the terminal ACCD voltage is not the standard value, the system can cause problems.	·AM2 No. 2 fuse ·Instrument panel junction block ASSY (ACC relay) ·Collation ECM (smart key ECM ASSY) ·Wiring harness or connector	Turn the engine switch on (ACC) or on (IG) and wait 10 seconds, turn the engine switch off, and wait 10 seconds. NOTE: To turn the engine switch on (ACC), hold the key, move the shift lever in P or N 2, remove your foot from the break pedal 2 or the clutch *3, and press the engine switch 2 times.

*1: The code is output only when the problem is found and the engine switch is on (IG).
*2: With automatic transmission
*3: for manual transmission

Vehicle status and failsafe upon detection

Vehicle status when a problem is detected	Failsafe function when a problem is detected
·If a problem occurs when the relay is stuck on, even after you turn the power off, the ACC relay will not turn off. ·If a problem occurs when the relay is stuck off, even after you turn the engine switch on, the ACC relay will not turn on. NOTE: You can turn the engine switch on (IG), and start the engine.	-

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2274	Power supply ·[ACC relay monitor] Engine ·[Ignition]	-

>Repair or replacement of the harnesses or connectors

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Checking the harnesses and connectors (power supply) (Refer to )

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

OK▼

2. Checking the harnesses and connectors (grounding) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

3. Checking the harnesses and connectors (instrument panel junction block ASSY - collation ECM)

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

(2) Remove the 3A connector of the instrument panel junction block ASSY.

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

Resistance

Inspection terminals	Inspection conditions	Standard value
D41-4 (ACCD) - 3A-20	Always	1 Ω or less
3A-12 - chassis ground	Always	1 Ω or less
D41-4 (ACCD) - chassis ground	Always	10 kΩ or more

4. Unit inspection of the instrument panel junction block ASSY (ACC relay)

(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.

Connector not connected
(Instrument panel junction block ASSY)

>Replacement of the instrument panel junction block ASSY

Inspection terminals	Inspection conditions	Standard value
3E-1 - 3B-28	When there is no battery voltage	10 kΩ or more
3E-1 - 3B-28	When battery voltage is applied to terminals 3A-20 and 3A-12	1 Ω or less
3E-1 - 3A-10	When there is no battery voltage	10 kΩ or more
3E-1 - 3A-10	When battery voltage is applied to terminals 3A-20 and 3A-12	1 Ω or less

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

(1) Install the main body ECM (multiplex network body ECM) on the instrument panel junction block ASSY.

(2) Install the instrument panel junction block ASSY.

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

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

Inspection terminals	Inspection conditions	Standard value
D41-4 (ACCD) - chassis ground	Engine switch off → Engine switch on (ACC)	1 V or less → 8.5 V or more

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

*a	Connector connected (Collation ECM (smart key ECM ASSY))

Complete (Possibly temporary poor contact)

DTC	B2275	[STSW circuit abnormal]

This DTC is output when a circuit problem is detected in the engine start permission signal output circuit of the collation ECM (smart key ECM ASSY), or when a malfunction is detected in the exterior engine start permission signal.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2275	·A circuit problem is detected (1-trip detection logic *) in the engine start permission output circuit of the collation ECM (smart key ECM ASSY). ·Problem in the external engine start permission signal (1 trip detection)	·Collation ECM (smart key ECM ASSY) ·EFI system ·Wiring harness or connector	Start the engine.

*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status when a problem is detected	Failsafe function when a problem is detected
The engine does not start.	-

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2275	-	-

>Repair or replacement of the harnesses or connectors

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Checking the harnesses and connectors (collation ECM - ECM)

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

(2) Remove the A33 connector of the ECM.

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

Resistance

Tester conditions	Inspection conditions	Standard value
D48-7 (STSW) - A33-17 (START)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D48-7 (STSW) - chassis ground	Always	10 kΩ or more

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

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

(2) Reconnect the A33 connector of the ECM.

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

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

Inspection terminals	Inspection conditions	Standard value
D48-7 (STSW) - D48-11 (GND)	Depress the brake pedal 1 or the clutch pedal 2 and press the engine switch (starter on)→ After approx. 1 second, the engine switch is released (starter off)	2V or less → 9 V or more

Measure the voltage according to the following table.

*a	Connector connected (Collation ECM (smart key ECM ASSY))

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

Proceed to the “EFI system” (“How to troubleshoot”)

DTC	B2276	[ACCR signal abnormal]

This DTC is output when an input problem occurs in the ACC relay cut input signal circuit of the collation ECM (smart key ECM ASSY).

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2276	A problem is detected (1-trip detection logic *) in the ACC relay cut input signal circuit of the collation ECM (smart key ECM ASSY).	·Collation ECM (smart key ECM ASSY) ·EFI system ·Wiring harness or connector	Start the engine.

*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status when a problem is detected	Failsafe function when a problem is detected
·When the engine starts, the ACC relay is not cut. ·The start ASSY turns slowly.	-

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2276	-	-

>Replacement of the harnesses or connectors

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Checking the harnesses and connectors

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

(2) Remove the A35 connector of the ECM.

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

Resistance

Inspection terminals	Inspection conditions	Standard value
D40-28 (ACCR) - A35-32(ACCR)	Always	1 Ω or less
D48-11 (GND) - chassis ground	Always	1 Ω or less
D40-28 (ACCR) - chassis ground	Always	10 kΩ or more

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

(1) Reconnect the D41, D40, and D48 connectors of the collation ECM (smart key ECM ASSY).

(2) Reconnect the A35 connector of the ECM.

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

Connector connected
(Collation ECM (smart key ECM ASSY))

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

Inspection terminals	Inspection conditions	Standard value
D40-28 (ACCR) - D48-11 (GND)*1	Depress the brake pedal 1 or the clutch pedal 2 and press the engine switch (starter on)→ After approx. 1 second, the engine switch is released (starter off)	2V or less → 9 V or more

>Replace the ECM

Replacement of the collation ECM (smart key ECM ASSY)

DTC	B2277	[Submerging circuit abnormal]

This DTC is output when a problem is detected in the water-exposure detection circuit of the smart key ECM ASSY (collation ECM).

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2277	The water-exposure detection circuit of the collation ECM (smart key ECM ASSY) detects exposure to water (1-trip detection logic*).	·Water-exposure of the collation ECM (smart key ECM ASSY) ·Collation ECM (smart key ECM ASSY)	After connecting the battery cable, wait 300 seconds.

*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status and failsafe function when a problem is detected

Vehicle status when a problem is detected	Failsafe function when a problem is detected
Cannot turn off or start the engine.	Changing the power mode to on (IG) and driving the starter relay is prohibited.

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2277	-	-

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

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

)
·After repair, perform the [DTC output confirmation operation], and check that the DTC is not output again.

NOTE:

Before performing troubleshooting, check the collation ECM (smart key ECM ASSY) for any damage due to water. If symptoms of damage from water are found, replace the collation ECM (smart key ECM ASSY), and take countermeasures against the cause of the damage from water.

1. Checking for damage from water

(1) Check for any evidence of water on the collation ECM (smart key ECM ASSY), surrounding parts, and wiring harnesses.

Result

Result	Go to
There is evidence of water.	A
There is no evidence of water.	B

Taking the appropriate countermeasures against damage from water, and replacement the collation ECM (smart key ECM ASSY).

DTC	B2282	[Vehicle speed signal abnormal]

DTC	B2283	[Vehicle speed sensor fault detection]

DTC B2282 is output when a mismatch is detected between the vehicle speed signal via the direct line sent from the brake actuator ASSY (skid control ECM) and the vehicle speed signal sent via the CAN communication.

DTC B2283 is output when a problem is detected in the speed sensor.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2282	This is output when a mismatch is detected between the vehicle speed signal via the direct line sent from the brake actuator ASSY (skid control ECM) and the vehicle speed signal sent via the CAN communication.	·AM2 No. 2 fuse ·Vehicle stability control system ·Collation ECM (smart key ECM ASSY) ·Wiring harness or connector	Drive the vehicle at 25 km/h {16 MPH} or faster for 20 seconds, then drive the vehicle at 5 km/h {3 MPH} for 20 seconds.
B2283	Meet any of these conditions (a speed sensor problem is detected) (1-trip detection logic*1): ·Vehicle speed signal error detection 1: Major decrease of the vehicle speed is detected. ·Vehicle speed signal error detection 2: A problem was detected through engine speed detection.	·AM2 No. 2 fuse ·Vehicle stability control system ·Collation ECM (smart key ECM ASSY) ·Wiring harness or connector	In IG ON, any of the following conditions is established. ·Direct connection vehicle speed pulse showing 50 km/h or more continues for 10 seconds, then the CAN and direct connection speed pulses both turn to 0 km/h within 1 second. ·In an AT vehicle, CAN and the direct connection show 0 km/h, the engine speed (according to the direct connection) is 2000 r/min or more, the shift lever is not in P or N, and ACCR is not in LOW level for 300 seconds. ·In an MT vehicle, CAN and the direct connection show 0 km/h, the engine speed (according to the direct connection) is 2000 r/min or more, the N position for the shift lever is OFF, the clutch switch is OFF, and ACCR is in the LOW level for 300 seconds.

*1: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status and failsafe function when a problem is detected

DTC No.	Vehicle status when a problem is detected	Failsafe function when a problem is detected
B2282	·If a problem is found in the signal via the direct line or the CAN communication, and if the vehicle speed is not displayed, there is no effect on vehicle operations. ·If a problem is found in the signal from the direct line or the CAN communication, and if the vehicle running is displayed, the power mode cannot be switched from on (IG) to off.	-
B2283	·If you press the engine switch when the vehicle is running, the engine switch will turn off (the engine stops). ·If the electrical key transmitter SUB-ASSY is in the vehicle interior, even if you perform engine start operations, the engine will not start.	Steering lock motor operations are prohibited.

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2282 B2283	Power supply ·[Vehicle speed signal] ·[Engine Speed] ·[Power supply status] Engine ·[Engine Speed] ABS-VSC-TRC ·[Wheel speed]	-

Criteria : [Current Data Display & Save] is almost the same as the actual vehicle speed.

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Reading the values using the SSM3 (vehicle speed)

(1) Connect the SSM3 to the DLC3.

(2) Turn the ignition switch to ON.

(3) Turn on the SSM3.

(4) Input the following menus: [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].

ABS/VSC/TRC

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Wheel speed]	Vehicle speed / hour: 0 km/h {0 MPH}, maximum speed: 255 km/h {158 MPH}	Almost the same speed as the actual vehicle speed (speedometer tester)	-

>VSC system (How to troubleshoot) (Refer to

)

OK▼

2. Reading the values using the SSM3 (vehicle speed signal)

(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] → [Power Supply ECM] → [Current Data Display & Save]

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

Criteria : Based on the vehicle speed, [Stopped] (the vehicle is stopped) or [Driving] (the vehicle is running) is displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Vehicle speed signal]	Vehicle in running or stopped status / [stopped] or [rotating]	[Rotating]: Vehicle is running at a speed of 5 km/h {3 MPH} or faster. [Stopped]: The vehicle is stopped.	-

> Go to Step 3.

Proceed to the “vehicle stability control system” (“How to troubleshoot”)

3. Checking the harnesses and connectors (power supply) (Refer to )

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

OK▼

4. Checking the harnesses and connectors (grounding) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

5. Checking the harnesses and connectors (collation ECM - combination meter ASSY)

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

(2) Disconnect the connector A5 of the brake actuator ASSY (skid control ECM).

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

Resistance

Inspection terminals	Inspection conditions	Standard value
D41-27 (SPD) - A5-2 (VSO)	Always	1 Ω or less
D41-27 (SPD) - chassis ground	Always	10 kΩ or more

>Repair or replacement of the harnesses or connectors

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

Connector connected
(Collation ECM (smart key ECM ASSY))

(1) Reconnect the connector A5 of the brake actuator ASSY (skid control ECM).

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

(3) Using an oscilloscope, check the waveform of the vehicle speed input signal sent from the combination meter of the collation ECM (smart key ECM ASSY) terminal.

(a) Refer to the table below and check the signal waveform.

Item	Contents
Tester connection	D41-27 (SPD) - D48-11 (GND)
Tool setting	5 V / DIV., 100 ms. / DIV.
Conditions	The engine switch on (IG), the vehicle running at approx. 5 km/h {3 MPH}

Criteria : The waveform resembles the waveform shown in the figure.

If the system is functioning properly, 4 pulses are generated for each wheel revolution. The faster the vehicle speed, the shorter the width shown in the figure (A) becomes.

>Proceed to the “vehicle stability control system” (“How to troubleshoot”)

Replacement of the collation ECM (smart key ECM ASSY)

DTC	B2284	[Brake Signal (Cable-Information does not match to BEAN-Information)]

The collation ECM (smart key ECM ASSY) receives brake signal information from 2 sources. It receives signals from the stop light ASSY via the direct line, and receives signals from the ECM via CAN communication. If the information sent from these 2 sources are different, this DTC is output.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2284	The brake signal information via the direct line and the brake signal information sent from the ECM via CAN communication do not match (1-trip detection logic*).	·AM2 No. 2 fuse ·Stop fuse ·Collation ECM (smart key ECM ASSY) ·EFI system ·Wiring harness or connector	Connect the cable to the battery ground terminal (-), and after 20 seconds or more since turning the brake off, turn it on again and wait 20 seconds or more.

*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status and failsafe function when a problem is detected

Vehicle status when a problem is detected

Failsafe function when a problem is detected

If the electrical key transmitter SUB-ASSY is in the vehicle interior, even if you perform engine start operations, the engine will not start (the entry key indicator on the combination meter ASSY will not light up green). However, if you press engine switch for a certain period of time after the power mode is turned on (ACC), you can start the engine.

·If a problem is found in the direct line [ON], even if the brake is off, you can press the engine switch and start the engine.
·If a problem is found in the direct line [OFF], even if the brake is on, you cannot press the engine switch and start the engine.

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2284	Power supply ·[Stop Light Switch 1] Engine ·[Brake Switch 1]	-

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Reading the values using the SSM3 (stop light switch ASSY)

(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] → [Power Supply ECM] → [Current Data Display & Save]

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

Criteria : “ON” (depressing the brake pedal) and “OFF” (your foot removed from the brake pedal) are displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Stop Light Switch 1]	Brake pedal status / [OFF] or [ON]	[OFF]: The brake pedal is not being depressed [ON]: The brake pedal is being depressed	·Using this item, determine if there is any problem with the stop light switch. ·When this item is [OFF], the engine will not start. ·If there is a problem caused by this item, if you press the engine switch for a certain amount of time, you can start the engine.

Result	Go to
NG	A
OK	B

>See the EFI system

(4) Reconnect the A22 connector of the stop light switch ASSY.

2. Checking the harnesses and connectors (power supply) (Refer to )

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

OK▼

3. Checking the harnesses and connectors (grounding) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

4. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - stop light switch ASSY)

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

(2) Remove the A22 connector of the stop light switch ASSY.

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

Resistance

Inspection terminals	Inspection conditions	Standard value
D48-18 (STP1) - A13-4	Always	1 Ω or less
D48-18 (STP1) - chassis ground	Always	10 kΩ or more

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

Inspection terminals	Inspection conditions	Standard value
D48-18 (STP1) - chassis ground	The brake pedal is not being depressed.	1 V or less
D48-18 (STP1) - chassis ground	The brake pedal is being depressed.	9 V or more

>Repair or replacement of the harnesses or connectors

*a	Rear side of the wiring harness connector (Collation ECM (smart key ECM ASSY))

Replacement of the collation ECM (smart key ECM ASSY)

DTC	B2285	[Steering lock position signal abnormal]

This DTC is output when the steering lock position signal sent from the lock actuator ASSY (steering lock ECM) via the direct line and the steering lock position signal sent via the LIN communication do not match.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2285	The steering lock position signal sent by the steering lock ECM via the direct line and the steering lock position signal sent via the LIN communication (1-trip detection logic*) do not match.	·AM2 No. 2 fuse ·Steering lock actuator ASSY (steering lock ECM) ·Collation ECM (smart key ECM ASSY) ·Wiring harness or connector	Remove the cable from the battery ground terminal (-), and after waiting 30 seconds, reconnect the cable to the battery ground terminal (-). Turn off the engine, wait 40 seconds (the steering is locked), turn the engine switch on (ACC) (the steering is unlocked), and wait 40 seconds or more.

·*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status and failsafe function when a problem is detected

Vehicle status when a problem is detected	Failsafe function when a problem is detected
The engine does not start.	The engine start command is not output.

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2284	Power supply ·[Steering unlock SW] Collation ·[Motor power supply short-circuit abnormal] ·[Motor driver short-circuit abnormal (history)] ·[Lock bar engagement abnormal (history)]	-

)
·Before replacing the collation ECM (smart key ECM ASSY) or the steering lock actuator ASSY (steering lock ECM), refer to “entry & start system (entry function)”. (Refer to

NOTE:

If the entry key indicator of the combination meter ASSY is lit up green, there is a possibility the steering lock bar is stuck.

1. DTC check (LIN communication system)

(1) Check the output of diagnostic codes from the smart key ECM ASSY (collation ECM).

Criteria : The diagnostic code B2785, which indicates a LIN communication malfunction, is not output.

NOTE:

·If the steering lock is being locked / unlocked, the engine switch will not turn on (IG), and you cannot start the engine.
·If you cannot use the LIN communication, you cannot lock / unlock the steering lock.

>See the diagnostic code B2785 (Refer to

OK▼

2. Reading the values using the SSM3 (steering unlock switch)

(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] → [Power Supply ECM] → [Current Data Display & Save]

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

·*: for automatic transmission

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Steering unlock SW]	Status of the steering lock sensor output from the steering lock actuator ASSY / OFF or ON	[OFF]: The steering is locked. [ON]: The steering is unlocked.	·When the shift lever is in P*, if a door is opened or closed with the engine switch off, the steering is locked. ·If the electrical key transmitter SUB-ASSY is in the vehicle interior, and the engine switch is on (ACC) or on (IG), the steering is unlocked. ·If the steering unlock signal is off, the engine will not start.

>Replacing the steering lock actuator ASSY (steering lock ECM)

Result	Go to
The [Current Data Display & Save] items do not change.	A
The [Current Data Display & Save] items change. (With LHD)	B
The [Current Data Display & Save] items change. (With RHD)	C

3. Checking the harnesses and connectors (power supply) (Refer to )

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

OK▼

4. Checking the harnesses and connectors (grounding) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

5. Inspection of the steering lock actuator ASSY (steering lock ECM)

(1) Reconnect the D59 connector of the steering lock actuator ASSY (steering lock ECM).

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

Voltage

Inspection terminals	Inspection conditions	Standard value
Positive (+) tester examination → D59-4 (SLP) Ground (-) tester examination → chassis ground	The steering is locked. *	10 kΩ or more
Positive (+) tester examination → D59-4 (SLP) Ground (-) tester examination → chassis ground	The steering is unlocked.	1 Ω or less

·*: When the shift lever is in P*, if a door is opened or closed with the engine switch off, the steering wheel is locked. After that, if the engine switch turns on (ACC) or on (IG), the steering wheel is unlocked.
·DTC B2285 may be output if there is a problem in the steering lock ECM (steering lock actuator ASSY). The steering lock position signal and the unlock position signal are sent from the steering lock ECM (steering lock actuator ASSY) to the collation ECM (smart key ECM ASSY).

·*: for automatic transmission

*a	Connector connected (Steering lock actuator ASSY (steering lock ECM))

>Replacing the steering lock actuator ASSY (steering lock ECM)

Result	Go to
OK	A
NG (For LHD)	B
NG (For RHD)	C

6. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - steering lock actuator ASSY (steering lock ECM))

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

(2) Remove the D59 connector of the steering lock actuator ASSY (steering lock ECM).

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

>Repair or replacement of the harnesses or connectors

Inspection terminals	Inspection conditions	Standard value
D41-26 (SLP) - D59-4 (SLP1)	Always	1 Ω or less
D41-26 (SLP) - chassis ground	Always	10 kΩ or more

Replacement of the collation ECM (smart key ECM ASSY)

DTC	B2286	[Run able Signal (Cable-Information does not match to BEAN-Information)]

This DTC is output when the engine speed signal sent from the ECM via the direct line and the engine speed signal sent via the CAN communication do not match.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
B2286	The engine speed signal sent by the ECM via the direct line and the engine speed signal sent via the CAN communication (1-trip detection logic*) do not match.	·AM2 No. 2 fuse ·Collation ECM (smart key ECM ASSY) ·EFI system ·Wiring harness or connector	Remove the cable from the battery ground terminal (-), and after waiting 30 seconds, reconnect the cable to the battery ground terminal (-). With the engine switch off, wait 20 seconds, and start the engine. With the engine speed at 1000 r/min or faster, do not stop the engine for 20 seconds or more after starting it.

*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status and failsafe upon detection

Vehicle status when a problem is detected

Failsafe function when a problem is detected

·If a problem is found in the signal via the direct line or the CAN communication, and if the vehicle speed is not displayed, there is no effect on vehicle operations. (When the engine switch is turned on (IG), the problem is detected.)
·If a problem is found in the signal via the direct line or the CAN communication, and if the vehicle is running, you cannot start the engine. However, if you turn the engine switch off, you can start the engine.

·If a problem is found in the signal via the direct line or the CAN communication, and if the vehicle speed is not displayed, there is no effect on vehicle operations.
·If a problem is found in the signal via the direct line or the CAN communication, and if the vehicle is running:

·If the following conditions are met, the problem can be determined to be in the direct line (TACH), not the CAN communication.

·If you press the engine switch and the system controls the engine based on the starter OFF permission flag (perfect injection signal decision) via the CAN communication, the engine stops cranking.
·If you press the engine switch and the system controls the engine based on the engine speed via the CAN communication, the engine stops cranking.

·If the following conditions are met, the problem can be determined to be in the CAN communication, not the direct line (TACH).

·If you press the engine switch and the system controls the engine based on the engine speed sent via the direct line, the engine stops cranking.
·If you press the engine switch and the system controls the engine based on the engine speed sent via the direct line, the engine stops cranking.

·If the following conditions are met, the problem can be determined to be in both the CAN communication and the direct line (NE).

·After you press the engine switch, the engine cranking stops after 6 seconds.
·While pressing the engine switch, 30 seconds pass and the engine is still cranking.

DTC No.	[Current Data Display & Save] items	[System Operation Check Mode] items
B2286	Power supply ·[Engine Speed] Engine ·[Engine Speed]	-

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

1. Reading the values using the SSM3 (engine speed)

(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] → [Power Supply ECM] → [Current Data Display & Save]

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

(6) Input the following menus: [Engine Control System] → [Current Data Display & Save]

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Engine Speed]	Engine status / [stopped] or [rotating]	[Stopped]: The engine is stopped. [Rotating]: The engine is turning.	-

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

Engine and ECT

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Engine Speed]	Engine speed / 0 - 16383 r/min	Changes based on engine speed	-

Criteria : The [Current Data Display & Save] items change based on the engine status.

>Proceed to the “EFI system” (“How to troubleshoot”)

Result	Go to
NG	A
OK	B

>Repair or replacement of the harnesses or connectors

2. Checking the harnesses and connectors (power supply) (Refer to )

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

OK▼

3. Checking the harnesses and connectors (grounding) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

4. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - ECM)

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

(2) Remove the A35 connector of the ECM.

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

Resistance

Inspection terminals	Inspection conditions	Standard value
D48-17 (TACH) - A35-15 (TACHO)	Always	1 Ω or less
D48-17 (TACH) - chassis ground	Always	10 kΩ or more

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

(1) Reconnect the A35 connector of the ECM.

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

(3) Refer to the table below and check the signal waveform.

Criteria

Inspection terminals	Inspection conditions	Standard value
D48-17 (TACH) - chassis ground	The engine is stopped.	A pulse is not generated.
D48-17 (TACH) - chassis ground	The engine is turning.	A pulse is generated.

>Proceed to the “EFI system” (“How to troubleshoot”)

*a	Connector connected (Collation ECM (smart key ECM ASSY))

Replacement of the collation ECM (smart key ECM ASSY)

DTC	U0073	Control module communication bus “A” off

DTC	U0100	[Lost Communication With ECM/PCM "A"]

DTC	U0101	[Lost Communication With TCM]

DTC	U0122	Lost Communication With Vehicle Dynamics Control Module

DTC	U0140	Lost Communication With Body Control Module

DTC	U0155	[Nonarrival of H-CAN data(METER)]

DTC	U0401	[Invalid Data Received From ECM/PCM “A”]

DTC	U0422	Invalid Data Received From Body Control Module

These DTCs are output when a CAN communication error is found between the collation ECM (smart key ECM ASSY) and the ECM, the main body ECM, the combination meter ASSY, or the engine stop and start ECM.

After removing the cable, if you reconnect it to the battery ground terminal (-), the power mode returns to the same status it was before you removed the cable.

DTC No.	DTC detection status	Faulty part	DTC Output Confirmation Operation
U0073	Problem in the CAN communication system (1 trip detection)	CAN communication system	Turn the ignition switch to ON and wait 10 seconds or more.
U0100	CAN communication problem between the collation ECM (smart key ECM ASSY) and the ECM (1-trip detection logic*)	ECM	Turn the ignition switch to ON and wait 10 seconds or more.
U0101	CAN communication problem between the collation ECM (smart key ECM ASSY) and the TCM (1-trip detection logic*)	TCM	Turn the ignition switch to ON and wait 10 seconds or more.
U0122	CAN communication problem between the collation ECM (smart key ECM ASSY) and the brake actuator ASSY (1-trip detection logic*)	Brake actuator ASSY	Turn the ignition switch to ON and wait 10 seconds or more.
U0140	CAN communication problem between the collation ECM (smart key ECM ASSY) and the main body ECM (multiplex network body ECM) (1-trip detection logic*)	Main body ECM (multiplex network body ECM)	Turn the ignition switch to ON and wait 10 seconds or more.
U0155	CAN communication problem between the collation ECM (smart key ECM ASSY) and the combination meter ASSY (1-trip detection logic*)	Combination meter ASSY	Turn the ignition switch to ON and wait 10 seconds or more.
U0401	CAN communication problem between the collation ECM (smart key ECM ASSY) and the ECM (1-trip detection logic*)	ECM	Turn the ignition switch to ON and wait 10 seconds or more.
U0422	CAN communication problem between the collation ECM (smart key ECM ASSY) and the main body ECM (multiplex network body ECM) (1-trip detection logic*)	Main body ECM (multiplex network body ECM)	Turn the ignition switch to ON and wait 10 seconds or more.

*: The code is output only when the problem is found and the engine switch is on (IG).

Vehicle status and failsafe function when a problem is detected

DTC code	Vehicle status when a problem is detected	Failsafe function when a problem is detected
U0073	No effect on the vehicle status.	-
U0100	No effect on the vehicle status.	If the following conditions are met, the problem can be determined to be in the CAN communication, not the direct line (TACH). ·If you press the engine switch and the system controls the engine based on the engine speed sent via the direct line, the engine stops cranking. ·If you press the engine switch and the system controls the engine based on the engine speed sent via the direct line, the engine stops cranking. If the following conditions are met, the problem can be determined to be in both the CAN communication and the direct line (TACH). ·After you press the engine switch, the engine cranking stops after 6 seconds. ·While pressing the engine switch, 30 seconds pass and the engine is still cranking.
U0101	No effect on the vehicle status.	-
U0122	No effect on the vehicle status.	-
U0140	The doors can no longer be locked or unlocked. The warning (wireless buzzer) does not sound.	-
U0155	The warning (meter buzzer) does not sound, and the meter does not issue a warning.	-
U0401	No effect on the vehicle status.	-
U0422	The doors can no longer be locked or unlocked. The warning (wireless buzzer) does not sound.	-

Diagnostic codes	[Current Data Display & Save] items	[System Operation Check Mode] items
U0073 U0100 U0101 U0122 U0140 U0155 U0401 U0422	-	-

·After repair, perform the [DTC output confirmation operation], and check that the DTC is not output again.

1. DTC check

(1) Record the output DTC. (Refer to

)

Next▼

See the “CAN communication system (How to troubleshoot)” (Refer to

)

The engine does not start.

Circuit description

With the electrical key transmitter SUB-ASSY in the vehicle interior, press the engine switch. The collation ECM (smart key ECM ASSY) receives the signal and the power mode changes. With the shift lever in P *1 or N *1, if you depress the brake pedal *1 or the clutch pedal *2 and press the engine switch, you can start the engine.

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

NOTE:

·Only if the steering lock is unlocked, even if the shift lever is in the N position, you can start the engine. *
·In IG ON, if the shift lever is in a position other than P, if you press the engine switch, the power changes to ACC ON. After that, if you move the shift lever to P and press the engine switch while depressing the brake pedal, the power changes to IG OFF. *
·If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

·*: for automatic transmission

Diagnostic codes	[Current Data Display & Save] items	[System Operation Check Mode] items
[The engine does not start.]	Power supply ·[Stop Light Switch 11] ·[Steering unlock SW] ·[Shift P signal1] ·[Neutral SW/Clutch SW] ·[IG2 relay monitor (outside)] ·[IG2 relay monitor (inside) ] ·[ACC relay monitor] ·[IG1 relay monitor (outside)] ·[IG1 relay monitor (inside)] ·[Starter request signal monitor] ·[Power supply status] Collation ·[Engine start permission request reception status] ·[L Code Check] Engine ·[Starter Switch] ·[Shift SW Status (P Range)1] ·[Shift SW Status (N Range)1] ·[Ignition]	-

Refer to the circuit figure. (Refer to

)

Inspection steps

CAUTION:

·Before performing troubleshooting that uses CAN communication of the entry & start system, perform the inspection in “How to troubleshoot”, and check that there are no problems in the communication system. (Refer to

)
·Before replacing the collation ECM (smart key ECM ASSY), the steering lock actuator ASSY (steering lock ECM), or the ID code box (immobilizer code ECM), refer to “entry & start system (entry function)”. (Refer to

)
·If the entry & start system has been disabled by the entry & start system customize settings, enable it before performing troubleshooting. (Refer to

)
·When replacing the steering lock actuator ASSY (steering lock ECM), before starting the engine, turn the steering wheel left and right, and check that the steering has been unlocked. If for some reason the steering is locked, turn the ignition switch to OFF, open and close a door, press the engine switch and unlock the steering wheel. By doing so, you can prevent starting the engine with the steering still locked.
·After finishing repair, check that the problem doesn't occur again.
·Before performing the following inspection steps, check the fuses related to this system.

NOTE:

With the engine stopped, if you repeatedly depress the brake pedal, the brake booster pressure is released. This increases the force on the brake pedal necessary to make the stop light turn on.*

·*: for automatic transmission

1. Checking the battery

(1) Measure the battery voltage.

Voltage : 11 to 14 V

NOTE:

·You can check if the vehicle battery is discharged by operating the horn.
·If the battery voltage is 11 V or less, it is necessary to charge or replace the battery.

OK▼

2. Checking the DTC (all)

(1) Using the SSM3, check the DTC output for all systems.

Criteria : No DTC is output

>Proceed to “List of diagnostic codes”. (Refer to

)

OK▼

3. Checking the waveform environment

(1) If a problem occurs only in certain places or at certain times, it is likely the effect of radio wave interference.

NOTE:

You can check if the problem is due to radio wave interference or not by holding the electrical key transmitter ASSY up to the door control receiver (RF band).

Next▼

4. Checking the engine switch status

(1) Enter the vehicle interior holding the electrical key transmitter SUB-ASSY.

(2) Move the shift lever in the P position.*

·*: for automatic transmission

(3) Depressing the brake pedal *1 or the clutch pedal *2, press the engine switch, and check that the power mode changes.

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

Result

Result	Go to
The power mode changes in the following way (functioning properly): OFF → ACC ON → IG ON → OFF	A
The power mode does not change to IG ON or ACC ON.	B
The power mode does not change to IG ON but does change to ACC ON.	C
The power mode does not change to ACC ON but does change to IG ON.	D

>See “the power mode does not change to on (IG and ACC)” (Refer to

)

>See “the power mode does not change to on (IG)” (Refer to

)

>See “the power mode does not change to on (ACC)” (Refer to

)

A▼

5. Checking the cranking function

(1) Enter the vehicle interior holding the electrical key transmitter SUB-ASSY.

(2) Move the shift lever in the P position.*

·*: for automatic transmission

(3) Depress the brake pedal *1 or the clutch pedal *2.

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

(4) If the entry key indicator light of the combination meter ASSY lights up green, press the engine switch, and check that the engine cranks.

Criteria : The engine cranks.

Result

Result	Go to
NG	A
OK	B

>See the “EFI system” (Symptom table)

6. Reading the values using the SSM3 (immobilizer)

(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 : When the power changes to ACC ON or IG ON, the [Current Data Display & Save] item changes to unset.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Immobilizer]	Immobilizer system status, as determined by the collation ECM (smart key ECM ASSY) / [Set] or [Unset]	[Set]: The engine immobilizer is set (starting the engine is prohibited) (IG OFF) [Unset]: The engine immobilizer is not set (starting the engine is permitted) (ACC ON or IG ON)	·If the immobilizer cannot be unset, this item is used to check if the collation ECM (smart key ECM ASSY) is causing the problem. ·If this item is [Set], the engine will not start.

Result	Go to
OK	A
NG (when there is an ID code box)	B
NG (when there is no ID code box)	C

> Go to Step 10.

> Go to Step 11.

7. Checking the combination meter ASSY (entry key indicator light)

(1) While carrying the electrical key transmitter SUB-ASSY, enter the vehicle interior, move the shift lever in P *1, and while depressing the brake pedal *1 or the clutch pedal *2, check if the entry key indicator light of the combination meter ASSY changes.

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

Criteria : The entry key indicator light lights up green.

When performing the above procedure, if the entry key indicator of the combination meter ASSY lights up green, P, N, the brake pedal *1, and the clutch pedal *2 are operating properly.

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

Result	Go to
OK	A
NG (with automatic transmission)	B
NG (with manual transmission)	C

> Go to Step 14.

> Go to Step 20.

8. Reading the values using the SSM3 (STARTER REQUEST SIGNAL)

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

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

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

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Starter request signal monitor]	Status of the engine start command signal 1 / [OFF] or [ON]	[OFF]: The engine switch is released after approx. 1 second. [ON]: Move the shift lever in P 1, depress the brake pedal 1 or the clutch pedal *2, and holding the electrical key transmitter ASSY, press the engine switch.	·If the engine does not start due to a problem in the start request signal, [OFF] is displayed. ·If you press the engine switch, the time [ON] is displayed will be very short. Therefore, it is necessary to press and hold the engine switch for a certain amount of time.

Criteria : The displayed contents change according to the engine switch operation.

Before you press the engine switch, check that the entry key indicator of the combination meter ASSY lights up green.

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

9. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - chassis ground)

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

(2) Remove the A33 connector of the ECM.

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

>Repair or replacement of the harnesses or connectors

Inspection terminals	Inspection conditions	Standard value
D48-7 (STSW) - A33-17 (START)	Always	1 Ω or less
D48-7 (STSW) - chassis ground	Always	10 kΩ or more

See the “EFI system” (Symptom table)

10. Reading the values using the SSM3 (S Code Check)

(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 : OK (OK result of the S Code Check) is displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[S Code Check]	Confirmation result of the collation ECM (smart key ECM ASSY) code and the ID code box (immobilizer code ECM) code / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The S code is not registered for the collation ECM (smart key ECM ASSY) and the ID code box (immobilizer code ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

> Go to Step 23.

(1) When in ACC ON, check that the steering can be unlocked.

11. Checking the steering lock

Criteria : The steering is unlocked.

> Go to Step 25.

12. Reading the values using the SSM3 (IMMOBILISER)

(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 : When the power changes to ACC ON or IG ON, the [Current Data Display & Save] items changes to unset.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Immobilizer]	Immobilizer system status, as determined by the collation ECM (smart key ECM ASSY) / [Set] or [Unset]	[Unset]: The engine immobilizer is not set (ACC ON or IG ON) [Set]: The engine immobilizer is set (IG OFF)	·If the immobilizer cannot be unset, this item is used to check if the collation ECM (smart key ECM ASSY) is causing the problem. ·If this item is [Set], the engine will not start.

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

Result	Go to
OK	A
NG (when there is an ID code box)	B
NG (when there is no ID code box)	C

> Go to Step 29.

13. Reading the values using the SSM3 (STARTER REQUEST SIGNAL)

(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].

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

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Starter request signal monitor]	Status of the engine start command signal 1 / [OFF] or [ON]	[OFF]: The engine switch is released after approx. 1 second. [ON]: Move the shift lever in P 1, depress the brake pedal 1 or the clutch pedal *2, and holding the electrical key transmitter ASSY, press the engine switch.	·If the engine does not start due to a problem in the start request signal, [OFF] is displayed. ·If you press the engine switch, the time [ON] is displayed will be very short. Therefore, it is necessary to press and hold the engine switch for a certain amount of time.

Criteria : The displayed contents change according to the engine switch operation.

Before you press the engine switch, check that the entry key indicator of the combination meter ASSY lights up green.

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

14. Reading the values using the SSM3 (NEUTRAL SW / CLUTCH SW, SHIFT SWITCH STATUS P OR N)

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

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

(6) Input the following menus: [Engine Control System] → [Current Data Display & Save]

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Neutral SW/Clutch SW]	Shift position (P, N) / [OFF] or [ON]	[OFF]: The shift lever is not in P or N, the pedal is not being depressed [ON]: The shift lever is in P or N, the pedal is being depressed.	·Using this item, determine if there is any problem with the parking / neutral position switch. ·When this item is [OFF], the engine will not start.

Engine and ECT

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Shift SW Status (P Range)]	Status of the parking / neutral position switch / [OFF] or [ON]	[OFF]: The shift lever is not in P [ON]: The shift lever is in P.	If a problem is found, the engine will not crank.
[Shift SW Status (N Range)]	Status of the parking / neutral position switch / [OFF] or [ON]	[OFF]: The shift lever is not in N [ON]: The shift lever is in N.	If a problem is found, the engine will not crank.

Criteria : The [Current Data Display & Save] items change based on the shift position.

> Go to Step 16.

15. Reading the values using the SSM3 (STOP LIGHT SWITCH 1)

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

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

Criteria : If you remove your foot after depressing the brake pedal, the [Current Data Display & Save] item changes.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Stop Light Switch 1]	Brake pedal status / [OFF] or [ON]	[OFF]: The brake pedal is not being depressed [ON]: The brake pedal is being depressed	·Using this item, determine if there is any problem with the parking / neutral position switch. ·When this item is [OFF], the engine will not start. ·If there is a problem caused by this item, if you press the engine switch for a certain amount of time, you can start the engine.

> Go to Step 18.

Replacement of the collation ECM (smart key computer ASSY)

16. Unit inspection of the parking / neutral position switch ASSY

(1) Remove the parking / neutral position switch ASSY.

(2) Inspect the parking / neutral position switch ASSY.

>Replacement of the parking / neutral position switch ASSY

17. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - parking / neutral position switch ASSY)

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

(2) Remove the L2 connector of the parking / neutral position switch ASSY.

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

>Repair or replacement of the harnesses or connectors

Tester display	Inspection conditions	Standard value
D48-5 (N-SW) - L2-1	Always	1 Ω or less
L2-9 - Chassis ground	Always	1 Ω or less
D48-5 (N-SW) - chassis ground	Always	10 kΩ or more

Replacement of the collation ECM (smart key computer ASSY)

18. Unit inspection of the stop light switch ASSY

(1) Remove the stop light switch ASSY. (Refer to

)

(2) Inspect the stop light switch ASSY. (Refer to

)

>Replacement of the stop light switch ASSY

OK▼

19. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - stop light switch ASSY) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

Replacement of the collation ECM (smart key computer ASSY)

20. Reading the values using the SSM3 (NEUTRAL SW / CLUTCH SW)

(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] → [Power Supply ECM] → [Current Data Display & Save]

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

Criteria : Based on the status of the clutch pedal, [ON] (depressing the clutch pedal) and [OFF] (your foot removed from the clutch pedal) are displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Neutral SW/Clutch SW]	Clutch pedal status / [OFF] or [ON]	[OFF]: The brake pedal is not being depressed [ON]: The brake pedal is being depressed	·Using this item, determine if there is any problem with the clutch position switch. ·When this item is [OFF], the engine will not start.

> Go to Step 21.

Replacement of the collation ECM (smart key computer ASSY)

21. Unit inspection of the clutch start switch ASSY

(1) Remove the clutch start switch ASSY. (Refer to

)

(2) Inspect the clutch start switch ASSY. (Refer to

)

>Repair or replacement of wiring harness or connector

OK▼

22. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - clutch start light switch ASSY)

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

(2) Remove the A20 connector of the clutch start switch ASSY.

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

Resistance

Tester display	Inspection conditions	Standard value
D48-10 (CLUT) - A20-2	Always	1 Ω or less
D48-10 (CLUT) - chassis ground	Always	10 kΩ or more

(4) Reconnect the A20 connector of the clutch start switch ASSY.

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

Inspection terminals	Inspection conditions	Standard value
D48-10 (CLUT) - chassis ground	Remove your foot from the clutch pedal → depress the clutch pedal	1V or less → 9 V or more

>Repair or replacement of the harnesses or connectors

*a	Rear of vehicle wire harness connector

Replacement of the collation ECM (smart key computer ASSY)

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

(1) 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.

(2) Perform the registration settings. (Refer to the “immobilizer registration manual”)

(3) Using [Current Data Display & Save], check if S code collation is functioning properly.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[S Code Check]	Confirmation result of the collation ECM (smart key ECM ASSY) code and the ID code box (immobilizer code ECM) code / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The S code is not registered for the collation ECM (smart key ECM ASSY) and the ID code box (immobilizer code ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

> Go to Step 24.

OK ▼

24. Replacement of the ID code box (immobilizer code ECM)

(1) Replace the ID code box (immobilizer code ECM) with a new one.

(2) Perform the registration settings. (Refer to the “immobilizer registration manual”)

(3) Using [Current Data Display & Save], check if S code collation is functioning properly.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[S Code Check]	Confirmation result of the collation ECM (smart key ECM ASSY) code and the ID code box (immobilizer code ECM) code / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The S code is not registered for the collation ECM (smart key ECM ASSY) and the ID code box (immobilizer code ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

Next▼

25. Reading the values using the SSM3 (STEERING UNLOCK SWITCH)

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

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

Criteria : [ON] is displayed for the [Current Data Display & Save] item (Steering lock is unlocked).

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Steering unlock SW]	Status of the steering lock sensor output from the steering lock actuator ASSY / [OFF] or [ON]	[OFF]: The steering is locked. [ON]: The steering is unlocked.	·When the shift lever is in P, if a door is opened or closed with the engine switch off, the steering is locked. ·If the electrical key transmitter ASSY is in the vehicle interior, and the engine switch is on (ACC) or on (IG), the steering is unlocked. ·If the steering unlock signal is off, the engine will not start.

> Go to Step 26.

See “Steering lock system” (steering lock cannot be unlocked)

26. Reading the values using the SSM3 (L Code Check)

(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 : If the electrical key transmitter ASSY is in the vehicle interior, the [Current Data Display & Save] item changes to [OK].

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[L Code Check]	Confirmation result of the ID code box (immobilizer code ECM) code and the steering lock actuator ASSY (steering lock ECM) / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The L code is not registered for ID code box (immobilizer code ECM) or the steering lock actuator ASSY (steering lock ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

Reasons for confirmation failure:

·There is a problem in the steering lock ECM and ID code box (immobilizer code ECM)*.
·There is a problem in communications between ECMs.
·The ECM was replaced, but is not yet registered.
·The ECM was replaced with an ECM that has a code that was already registered.

·*: The ID code box is included.

> Go to Step 28.

27. Replacement of the steering lock actuator ASSY (steering lock ECM)

(1) Replace the steering lock actuator ASSY (steering lock ECM) with a new one.

(2) Perform the registration settings. (Refer to the “immobilizer registration manual”)

(3) Turn the ignition switch to ON.

(4) Operate the steering wheel to check the steering status.

Next▼

28. Replacement the steering lock actuator ASSY (steering lock ECM)

(1) Replace the steering lock actuator ASSY (steering lock ECM) with a new one.

(2) Perform the registration settings. (Refer to the “immobilizer registration manual”)

(3) Using [Current Data Display & Save], check if L code collation is functioning properly.

Criteria : OK ([L Code Check] OK) is displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[L Code Check]	Confirmation result of the ID code box (immobilizer code ECM) code and the steering lock actuator ASSY (steering lock ECM) / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The L code is not registered for ID code box (immobilizer code ECM) or the steering lock actuator ASSY (steering lock ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

>Replacement of the ID code box (immobilizer code ECM)

Result	Go to
OK	A
NG (when there is an ID code box)	B
NG (when there is no ID code box)	C

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

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

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

(2) Perform the registration settings. (Refer to the “immobilizer registration manual”)

(3) Using [Current Data Display & Save], check if S code collation is functioning properly.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[S Code Check]	Confirmation result of the collation ECM (smart key ECM ASSY) code and the ID code box (immobilizer code ECM) code / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The S code is not registered for the collation ECM (smart key ECM ASSY) and the ID code box (immobilizer code ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

> Go to Step 30.

30. Replacement of the ID code box (immobilizer code ECM)

(1) Replace the ID code box (immobilizer code ECM) with a new one.

(2) Perform the registration settings. (Refer to the “immobilizer registration manual”)

(3) Using [Current Data Display & Save], check if S code collation is functioning properly.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[S Code Check]	Confirmation result of the collation ECM (smart key ECM ASSY) code and the ID code box (immobilizer code ECM) code / [OK] or [NG]	[OK]: Normal confirmation result [NG]: Abnormal confirmation result	If [NG] is displayed: ·The S code is not registered for the collation ECM (smart key ECM ASSY) and the ID code box (immobilizer code ECM). ·The steering is not locked. ·The steering is not unlocked (you cannot start the engine).

Next▼

The power does not turn on (does not change to both ACC ON or IG ON)

If any of the following operations are performed, the collation ECM (smart key ECM ASSY) receives a signal and changes the power mode.

·When the electrical key transmitter SUB-ASSY is in the vehicle interior, press the engine switch.
·When the transmitter battery of the electrical key transmitter SUB-ASSY is drained, depress the brake pedal *1 or the clutch pedal *2, and hold the electrical transmitter SUB-ASSY up to the engine switch.
·If the entry cancel function has been customized, while depressing the brake pedal *1 or the clutch pedal *2, hold the electrical key transmitter SUB-ASSY up to the engine switch.

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

If you remove and then reconnect the battery cable, the power returns to the power mode it was before you removed the cable.

Symptoms	[Current Data Display & Save] items	[System Operation Check Mode] items
The power mode does not switch to on (IG) or to on (ACC).	Power supply ·[System SW1] ·[System SW2] ·[IG2 relay monitor (outside)] ·[IG2 relay monitor (inside) ] ·[ACC relay monitor] ·[IG1 relay monitor (outside)] ·[IG1 relay monitor (inside)] ·[Power supply status] Engine ·[Ignition]	-

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

)
·Check that no DTC is output. If any DTC is output, proceed to “List of diagnostic codes”. (Refer to

)
·If the entry & start system has been disabled by the entry & start system customize settings, enable it before performing troubleshooting. (Refer to

)
·After finishing repair, check that the problem doesn't occur again.
·Before performing the following inspection steps, check the fuses related to this system.

1. Checking the wireless door lock control system (operation)

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

)

Criteria : The wireless door and lock function operates properly.

>See “Entry & Start system” (The entry lock / unlock function and wireless function for all doors does not function) (Refer to

)

OK▼

2. Checking the harnesses and connectors (power supply) (Refer to )

>Repair or replacement of the harnesses or connectors of the circuits that connect to the power source

OK▼

3. Checking the harnesses and connectors (GND) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

4. Checking the entry & start system

(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) When you touch the logo side of the electrical key transmitter SUB-ASSY to the engine switch, check if the power mode changes.

Criteria : The power mode changes.

NOTE:

If the power mode does not change, there is a problem in the cabin confirmation function.

Result

Result	Go to
NG (The power mode does not change)	A
OK (The power mode changes)	B

> Go to Step 13.

5. Reading the values using the SSM3 (STOP LIGHT SWITCH 1, NEUTRAL SW / CLUTCH SW)

(1) With automatic transmission

(a) Connect the SSM3 to the DLC3.

(b) Turn the ignition switch to ON.

(d) Input the following menus: [Keyless access system] → [Power Supply ECM] → [Current Data Display & Save]

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

Criteria : Based on the status of the stop light switch, “ON” (depressing the brake pedal) and “OFF” (your foot removed from the brake pedal) are displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Stop Light Switch 1]	Brake pedal status / [OFF] or [ON]	[OFF]: The brake pedal is not being depressed [ON]: The brake pedal is being depressed	·Using this item, determine if there is any problem with the stop light switch. ·When this item is [OFF], the engine will not start. ·If there is a problem caused by this item, if you press the engine switch for a certain amount of time, you can start the engine.

(2) With manual transmission

(a) Connect the SSM3 to the DLC3.

(b) Turn the ignition switch to ON.

(d) Input the following menus: [Keyless access system] → [Power Supply ECM] → [Current Data Display & Save]

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

Criteria : Based on the status of the stop light switch, [ON] (depressing the clutch pedal) and [OFF] (your foot removed from the clutch pedal) are displayed on the screen.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Neutral SW/Clutch SW]	Clutch pedal status / [OFF] or [ON]	[OFF]: The brake pedal is not being depressed [ON]: The brake pedal is being depressed	·Using this item, determine if there is any problem with clutch switch. ·When this item is [OFF], the engine will not start.

Result	Go to
OK	A
NG (with automatic transmission)	B
NG (with manual transmission)	C

> Go to Step 8.

> Go to Step 10.

6. Reading the values using the SSM3 (POWER SUPPLY CONDITION)

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

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

Criteria : Based on the change of power mode when you pressed the engine switch, the change contents are displayed.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Power supply status]	Power supply status / [All OFF], [IG1 ON] or [ACC ON], [IG2 ON], [ST ON]	[All OFF]: Engine switch off (ACC and IG) [ACC ON]: The engine switch is on (ACC) [IG1 ON]: The engine switch is on (IG) (IG1 relay on) [IG2 ON]: The engine switch is on (IG) (IG2 relay on) [ST ON]: The engine start request signal is sent.	Because [IG1 ON] and [IG2 ON] occur almost simultaneously, [IG1] may not be displayed ([IG1 ON] is displayed for a very short period of time).

> Go to Step 12.

7. Inspection of the collation ECM (smart key ECM ASSY)

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

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

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

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[Power supply status]	Power supply status / [All OFF], [IG1 ON] or [ACC ON], [IG2 ON], [ST ON]	[All OFF]: Engine switch off (ACC and IG) [ACC ON]: The engine switch is on (ACC) [IG1 ON]: The engine switch is on (IG) (IG1 relay on) [IG2 ON]: The engine switch is on (IG) (IG2 relay on) [ST ON]: The engine start request signal is sent.	Because [IG1 ON] and [IG2 ON] occur almost simultaneously, [IG1] may not be displayed ([IG1 ON] is displayed for a very short period of time).

Connector connected
(Collation ECM (smart key ECM ASSY))

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

Inspection terminals	Inspection conditions	Standard value
D41-6 (IG1D) - chassis ground	IG OFF	1 V or less
	ACC ON	1 V or less
	IG ON	9 V or more
D48-9 (IG2D) - chassis ground	IG OFF	1 V or less
	ACC ON	1 V or less
	IG ON	9 V or more
D41-4 (ACCD) - chassis ground	IG OFF	1 V or less
	ACC ON	8.5 V or more
	IG ON	8.5 V or more

Checking the circuits connected to the relay

8. Unit inspection of the stop light switch ASSY

(1) Remove the stop light switch ASSY. (Refer to

)

(2) Inspect the stop light switch ASSY. (Refer to

)

>Replacement of the stop light switch ASSY

OK▼

9. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - stop light switch ASSY) (Refer to )

>Repair or replacement of the harnesses or connectors

OK▼

Replacement of the collation ECM (smart key computer ASSY)

10. Unit inspection of the clutch start switch ASSY

(1) Remove the clutch start switch ASSY. (Refer to

)

(2) Inspect the clutch start switch ASSY. (Refer to

)

>Replacement of the clutch start switch ASSY

OK▼

11. Checking the harnesses and connectors

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

(2) Remove the A20 connector of the clutch start switch ASSY.

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

Voltage

Tester display	Inspection conditions	Standard value
D48-10 (CLUT) - A20-1	Always	1 Ω or less
D48-10 (CLUT) - chassis ground	Always	10 kΩ or more

(4) Reconnect the A20 connector of the clutch start switch ASSY.

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

Tester display	Inspection conditions	Standard value
D48-10 (CLUT) - chassis ground	Remove your foot from the clutch pedal → depress the clutch pedal	1V or less → 9 V or more

>Repair or replacement of the harnesses or connectors

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

Replacement of the collation ECM (smart key computer ASSY)

12. DTC check

(1) Check for DTC. (Refer to

)

>Proceed to “List of diagnostic codes” (B2784) (Refer to

Result	Go to
No DTC is output	A
DTC B2784 is output	B
DTC B2785 is output	C

)

>Proceed to “List of diagnostic codes” (B2785)

A▼

Replacement of the electrical key transmitter SUB-ASSY

13. Reading the values using the SSM3 (START SWITCH 1, 2)

(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] → [Power Supply ECM] → [Current Data Display & Save]

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

Criteria : According to the engine switch operation, the [Current Data Display & Save] display contents are changed.

Tester display	Measurement items / range	Normal condition	Notes for diagnosis
[System SW1]	Connection status of the engine switch 1 / [OFF] or [ON]	[OFF]: The engine switch is not being pushed. [ON]: The engine switch is being pushed.	·If the engine switch is not pressed for a long enough time, the display contents may not change. ·Using this item, determine if there is any problem with the engine switch input signal.
[System SW2]	Connection status of the engine switch 2 / [OFF] or [ON]	[OFF]: The engine switch is not being pushed. [ON]: The engine switch is being pushed.	·Back-up for engine switch 1. If you press the engine switch, the control function only works if the both engine switch 1 and 2 are operating properly. ·Works in the same way as engine switch 1.

>Proceed to “Entry & Start system” (entry function) (ROOM OSCILLATOR does not recognize the key) (Refer to

Result	Go to
NG	A
OK	B

)

A▼

14. Unit inspection of the engine switch

(1) Remove the engine switch ASSY. (Refer to

)

(2) Inspect the engine switch ASSY. (Refer to

)

>Replacement of the engine switch

OK▼

15. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - engine switch)

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

(2) Remove the D25 connector of the engine switch.

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

Resistance

Tester display	Inspection conditions	Standard value
D41-28 (SSW1) - D25-5 (SS1)	Always	1 Ω or less
D41-30 (SSW2) - D25-1 (SS2)	Always	1 Ω or less
D41-28 (SSW1) - chassis ground	Always	10 kΩ or more
D41-30 (SSW2) - chassis ground	Always	10 kΩ or more

>Repair or replacement of the harnesses or connectors

Replacement of the collation ECM (smart key computer ASSY)

Power does not turn ON (power status changes to ACC ON but not to IG ON)

With the electrical key transmitter SUB-ASSY in the vehicle interior, press the engine switch. The collation ECM (smart key ECM ASSY) receives the signal and the power mode changes.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.

·The entry & start system uses the CAN communication. Before performing troubleshooting, perform the inspection in “How to troubleshoot”, and check that there are no communication problems. (Refer to

)
·Before replacing the collation ECM (smart key ECM ASSY), refer to “entry & start system (entry function)”. (Refer to

)
·Check that no DTC is output. If any DTC is output, proceed to “List of diagnostic codes”. (Refer to

)
·If the entry & start system has been disabled by the entry & start system customize settings, enable it before performing troubleshooting. (Refer to

)
·Before performing the following inspection steps, check the fuses related to this system.
·After finishing repair, check that the problem doesn't occur again.

1. Checking the harnesses and connectors (collation ECM (smart key ECM ASSY) - IG2 relay)

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

(2) Remove the IG2 relay from the engine compartment relay block.

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

Resistance

Tester display	Inspection conditions	Standard value
D48-9 (IG2D) - IG2 relay terminal 2	Always	1 Ω or less
IG2 relay terminal 1 - chassis ground	Always	1 Ω or less

>Repair or replacement of the harnesses or connectors

(1) Inspect the IG2 relay unit. (Refer to

2. Unit inspection of the IG2 relay

)

>Replacement of the IG2 relay

OK▼

3. Checking the harnesses and connectors (collation ECM - instrument panel junction block ASSY)

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

(2) Remove the 3A connector of the instrument panel junction block ASSY.

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

Resistance

Tester display	Inspection conditions	Standard value
D41-6 (IG1D) - 3A-15	Always	1 Ω or less
3A-12 - chassis ground	Always	1 Ω or less

>Repair or replacement of the harnesses or connectors

4. Unit inspection of the instrument panel junction block ASSY (IG1 NO. 1, IG1 NO. 2, IG1 NO. 3, IG1 NO. 4 relay)

(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.

Connector not connected
(Instrument panel junction block ASSY)

>Replacement of the instrument panel junction block ASSY

Inspection terminals	Inspection conditions	Standard value
3E-1 - 3C-35	Battery voltage is not applied to terminals 3A-15 and 3A-12.	10 kΩ or more
3E-1 - 3C-35	Battery voltage is applied to terminals 3A-15 and 3A-12.	1 Ω or less
3E-1 - 3C-34	Battery voltage is not applied to terminals 3A-15 and 3A-12.	10 kΩ or more
3E-1 - 3C-34	Battery voltage is applied to terminals 3A-15 and 3A-12.	1 Ω or less
3E-1 - 3A-32	Battery voltage is not applied to terminals 3A-15 and 3A-12.	10 kΩ or more
3E-1 - 3A-32	Battery voltage is applied to terminals 3A-15 and 3A-12.	1 Ω or less
3E-1 - 3A-3	Battery voltage is not applied to terminals 3A-15 and 3A-12.	10 kΩ or more
3E-1 - 3A-3	Battery voltage is applied to terminals 3A-15 and 3A-12.	1 Ω or less

5. Inspection of the collation ECM (smart key ECM ASSY)

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

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

Connector connected
(Collation ECM (smart key ECM ASSY))

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

Inspection terminals	Inspection conditions	Standard value
D41-6 (IG1D) - chassis ground	ACC ON → IG ON	1V or less → 9 V or more
D48-9 (IG2D) - chassis ground	ACC ON → IG ON	1V or less → 9 V or more

Checking the circuits connected to the relay

The power does not turn ON (power status changes to IG ON but not to ACC ON)

With the electrical key transmitter SUB-ASSY in the vehicle interior, press the engine switch. The collation ECM (smart key ECM ASSY) receives the signal and the power mode changes. If the power mode does not change to ACC ON but does change to IG ON, use these troubleshooting procedures.

If you remove and then reconnect the battery cable, the power returns to the mode it was before you removed the cable.