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

for Preparation Click here


DESCRIPTION

When the driver door entry lock and unlock functions do not operate, one of the following may be malfunctioning: 1) power door lock control system; 2) front door outside handle assembly (for driver side); or 3) certification ECU.

WIRING DIAGRAM


B216377E01


INSPECTION PROCEDURE

NOTICE:
  1. The entry and start system (for entry function) uses a multiplex communication system (LIN communication system) and 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 system is functioning properly.
  2. When using the intelligent tester with the engine 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 tester and vehicle begins.

1.CHECK POWER DOOR LOCK OPERATION

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

    OK:
    Door locks operate normally.



NG
GO TO POWER DOOR LOCK CONTROL SYSTEM (PROCEED TO PROBLEM SYMPTOMS TABLE) (Click here)
OK


2.CHECK WAVE ENVIRONMENT


    B216695E01

  1. Bring the electrical key transmitter near the front door outside handle assembly (for driver side), and perform a driver door entry lock and unlock operation check.

    NOTICE:
    If the key is brought within 0.2 m (0.656 ft.) of the door outside handle assembly, communication is not possible.

    HINT:
    1. When the electrical key transmitter is brought near the front door outside handle assembly (for driver side), the possibility of wave interference decreases, and it can be determined if wave interference is causing the problem symptom.
    2. If the operation is normal, the possibility of wave interference is high. Also, added vehicle components may cause wave interference. If installed, remove them and perform the operation check.

    OK:
    Entry functions operate normally.



NG
Go to step 3
OK

AFFECTED BY WAVE INTERFERENCE 

3.CHECK HARNESS AND CONNECTOR (CERTIFICATION ECU - FRONT DOOR OUTSIDE HANDLE)


    B199545E03

  1. Disconnect the certification ECU connector.

  1. Disconnect the front door outside handle assembly (for driver side) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    R1-3 (ANT2) - D34-4 (CG1B)*1
    		Always
    		Below 1 Ω
    Q1-3 (ANT2) - D34-4 (CG1B)*2
    		Always
    		Below 1 Ω
    R1-6 (ANT1) - D34-3 (CLG1)*1
    		Always
    		Below 1 Ω
    Q1-6 (ANT1) - D34-3 (CLG1)*2
    		Always
    		Below 1 Ω
    R1-2 (GND) - Body ground*1
    		Always
    		Below 1 Ω
    Q1-2 (GND) - Body ground*2
    		Always
    		Below 1 Ω
    D34-4 (CG1B) - Body ground
    		Always
    		10 kΩ or higher
    D34-3 (CLG1) - Body ground
    		Always
    		10 kΩ or higher

    1. *1: for LHD
    2. *2: for RHD
    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Front Door Outside Handle assembly)
    *2
    		Front view of wire harness connector
    (to Certification ECU)
    *3
    		for LHD
    *4
    		for RHD



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.CHECK HARNESS AND CONNECTOR (DOOR OUTSIDE HANDLE - BATTERY AND BODY GROUND)

  1. Reconnect the certification ECU connector.



    B199753E01

  1. Measure the pulse generation according to the value(s) in the table below.

    OK:
    Tester Connection
    		Condition
    		Specified Condition
    R1-3 (ANT2) - R1-6 (ANT1)*1
    		Engine switch off, all doors closed, all doors locked with wireless door lock control, and key not in the cabin
    		No pulse generation → Pulse generation
    Q1-3 (ANT2) - Q1-6 (ANT1)*2
    		Engine switch off, all doors closed, all doors locked with wireless door lock control, and key not in the cabin
    		No pulse generation → Pulse generation

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

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

    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    R1-5 (B) - Body ground*1
    		Engine switch off →Engine switch on (IG)
    		9 to 12 V → Below 2 V
    Q1-5 (B) - Body ground*1
    		Engine switch off →Engine switch on (IG)
    		9 to 12 V → Below 2 V

    1. *1: for LHD
    2. *2: for RHD
    Text in Illustration 
    *1
    		Front view of wire harness connector
    (to Front Door Outside Handle assembly)
    *2
    		for LHD
    *3
    		for RHD



NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


5.REPLACE FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE)

  1. Replace the front door outside handle assembly (for driver side) (Click here).


NEXT


6.CHECK FRONT DOOR OUTSIDE HANDLE ASSEMBLY (FOR DRIVER SIDE)

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

    OK:
    Entry functions operate normally.



NG
REPLACE CERTIFICATION ECU
OK

END (FRONT DOOR OUTSIDE HANDLE ASSEMBLY IS DEFECTIVE)