ENTRY AND START SYSTEM (for Entry Function) > Front Passenger Side Door Entry Lock and Unlock Functions do not Operate

for Preparation Click here

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

NOTICE:

1. The entry and start system (for Entry Function) uses a multiplex communication system (LIN communication system) and the CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting (Click here). Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.
   
2. When using the intelligent tester with the power switch off to troubleshoot:
   Connect the intelligent tester to the DLC3 and turn a courtesy light switch on and off at 1.5-second intervals until communication between the intelligent tester and vehicle begins.
   
3. Check that there are no electrical key transmitters in the vehicle.
   
4. Before performing the inspection, check that DTC B1242 (wireless door lock control) is not output (Click here).
   
5. Before replacing the certification ECU (smart key ECU assembly), refer to the entry and start system (for Entry Function) (Click here).
   

1. When the door control switch on the multiplex network master switch assembly is operated, check that the doors unlock and lock according to the switch operation (Click here).
   

   OK:

   Door locks operate normally.
   

NG	GO TO POWER DOOR LOCK CONTROL SYSTEM (Click here)

OK

1. Connect the intelligent tester to the DLC3.
   

2. Turn the power switch on (IG).
   

3. Turn the intelligent tester on.
   

4. Enter the following menus: Body / Main Body / Data List.
   

5. Read the Data List according to the display on the intelligent tester.
   
   

   Main Body 

   Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
   FL Door Lock Pos*1	Front LH door lock position switch signal / UNLOCK or LOCK	UNLOCK: Front LH door unlocked LOCK: Front LH door locked	-
   FR Door Lock Pos*2	Front RH door lock position switch signal / UNLOCK or LOCK	UNLOCK: Front RH door unlocked LOCK: Front RH door locked	-

   1. *1: for RHD
      
   2. *2: for LHD
      

   OK:

   On the intelligent tester screen, the display changes between LOCK and UNLOCK as shown in the chart above.
   

NG	GO TO LIGHTING SYSTEM (Proceed to Door Unlock Detection Switch Circuit) (Click here)

OK

1. Check the following antennas in the key diagnostic mode (Click here).
   

   
   
   

   1. Check the electrical key antenna (for front passenger door):
      

      Text in Illustration 

      *a	0.7 to 1 m (2.30 to 3.28 ft.)

      When the electrical key transmitter is brought within 0.7 to 1 m (2.30 to 3.28 ft.) of the front door outside handle assembly (for front passenger door), check that the wireless door lock buzzer sounds.
      

      OK:

      Entry function operates normally.
      

NG	Go to step 4

OK
REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

1. Disconnect the N1*1, O1*2 front door outside handle assembly (for front passenger door) connector.
   

2. Disconnect the H1 certification ECU (smart key ECU assembly) connector.
   

3. Measure the resistance according to the value(s) in the table below.
   

   1. *1: for LHD
      
   2. *2: for RHD
      
   
   

   Standard Resistance:

   for LHD 

   Tester Connection	Condition	Specified Condition
   N1-3 (ANT2) - H1-6 (CG2B)	Always	Below 1 Ω
   N1-6 (ANT1) - H1-5 (CLG2)	Always	Below 1 Ω
   N1-5 (B) - H1-33 (POS2)	Always	Below 1 Ω
   N1-2 (GND) - Body ground	Always	Below 1 Ω
   N1-3 (ANT2) or H1-6 (CG2B) - Body ground	Always	10 kΩ or higher
   N1-6 (ANT1) or H1-5 (CLG2) - Body ground	Always	10 kΩ or higher
   N1-5 (B) or H1-33 (POS2) - Body ground	Always	10 kΩ or higher

   for RHD 

   Tester Connection	Condition	Specified Condition
   O1-3 (ANT2) - H1-6 (CG2B)	Always	Below 1 Ω
   O1-6 (ANT1) - H1-5 (CLG2)	Always	Below 1 Ω
   O1-5 (B) - H1-33 (POS2)	Always	Below 1 Ω
   O1-2 (GND) - Body ground	Always	Below 1 Ω
   O1-3 (ANT2) or H1-6 (CG2B) - Body ground	Always	10 kΩ or higher
   O1-6 (ANT1) or H1-5 (CLG2) - Body ground	Always	10 kΩ or higher
   O1-5 (B) or H1-33 (POS2) - Body ground	Always	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

1. Disconnect the N1*1, O1*2 front door outside handle assembly (for front passenger door) connector.
   

2. Connect the H1 certification ECU (smart key ECU assembly) connector.
   

3. Measure the voltage according to the value(s) in the table below.
   

   1. *1: for LHD
      
   2. *2: for RHD
      
   
   

   Standard Voltage:

   for LHD 

   Tester Connection	Condition	Specified Condition
   N1-5 (B) - Body ground	Power switch off → on (IG)	9 to 14 V → Below 2 V

   for RHD 

   Tester Connection	Condition	Specified Condition
   O1-5 (B) - Body ground	Power switch off → on (IG)	9 to 14 V → Below 2 V

4. Using an oscilloscope, check the waveform.
   
   

   OK:

   
   

   Tester Connection	Switch Condition	Tool Setting	Specified Condition
   N1-3 (ANT2) - N1-6 (ANT1)	Procedure: Power switch off Key brought outside vehicle All doors closed Key not inside vehicle All doors locked through wireless operation	2 V/DIV., 500 ms/DIV.	Pulse generation (See waveform)

NG	REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

OK

1. Temporarily replace the front door outside handle assembly (for front passenger door) with a new or normally functioning one (Click here).
   

NEXT

1. Check that the entry functions operate normally (Click here).
   

   OK:

   Entry functions operate normally.
   

NG	REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

OK
END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY WAS DEFECTIVE)