ENTRY AND START SYSTEM(for Entry Function) Driver Side Door Entry Unlock Function does not Operate

DESCRIPTION

If the entry unlock function does not operate for the driver door only, but the entry lock function operates, the request code is being transmitted properly from the driver door. In this case, there may be a problem related to the unlock request detection switch (connection between the front multiplex network door ECU (for driver door) and door outside handle sub-assembly (for driver door)) or a problem with the certification ECU (smart key ECU assembly).

WIRING DIAGRAM

B000V5QE20

CAUTION / NOTICE / HINT

Note


  • When using the GTS with the engine switch off, connect the GTS to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical /Entry&Start. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

  • The entry and start system (for Entry Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the entry and start system (for Entry Function) after confirming that the communication systems are functioning properly.

    Click here

  • Before replacing the certification ECU (smart key ECU assembly), refer to the Service Bulletin.

  • After repair, confirm that no DTCs are output.

    Click here

  • Check that there are no electrical key transmitter sub-assemblies in the vehicle.

PROCEDURE


  1. CHECK POWER DOOR LOCK CONTROL SYSTEM


    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.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO POWER DOOR LOCK CONTROL SYSTEM Click here

    OK

  2. READ VALUE USING GTS (SMART UNLOCK SWITCH)


    1. Turn the engine switch off.

    2. Open and close the driver door.

    3. With the electrical key transmitter sub-assembly outside of the vehicle, press the lock switch of the electrical key transmitter sub-assembly to lock all of the doors.

    4. Hold the electrical key transmitter sub-assembly at the same height as the door outside handle assembly and approximately 0.7 to 1 m (2.30 to 3.28 ft.) from the driver door.

    5. Read the Data List according to the display on the GTS.

    6. B000YTBC01
      *a Depression

      for LHD:

      Press the depression on the door outside handle sub-assembly (for driver door).

      Tech Tips

      When checking the operation of the unlock request detection switch again, make sure to perform the procedure from step (a).


      Body Electrical > Front Left Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Smart Unlock Switch Front door LH unlock request detection switch signal ON or OFF

      ON: Depression on front door outside handle LH pressed

      OFF: Depression on front door outside handle LH not pressed

      		 Use this Data List item to help determine if there is an unlock switch malfunction when the entry unlock function does not operate.

      Body Electrical > Front Left Door > Data List
      Tester Display
      Smart Unlock Switch
      OK
      The GTS display changes correctly in response to the operation of the door outside handle sub-assembly (for driver door).
    7. B000YREC01
      *a Depression

      for RHD:

      Press the depression on the door outside handle sub-assembly (for driver door).

      Tech Tips

      When checking the operation of the unlock request detection switch again, make sure to perform the procedure from step (a).


      Body Electrical > Front Right Door > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Smart Unlock Switch Front door RH unlock request detection switch signal ON or OFF

      ON: Depression on front door outside handle RH pressed

      OFF: Depression on front door outside handle RH not pressed

      		 Use this Data List item to help determine if there is an unlock switch malfunction when the entry unlock function does not operate.

      Body Electrical > Front Right Door > Data List
      Tester Display
      Smart Unlock Switch
      OK
      The GTS display changes correctly in response to the operation of the door outside handle sub-assembly (for driver door).
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

    NG

  3. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (FOR DRIVER DOOR) - DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR DRIVER DOOR))


    • *1: for LHD

    • *2: for RHD


    1. Disconnect the S8*1 or R8*2 front multiplex network door ECU (for driver door) connector.

    2. Disconnect the W2*1 or V2*2 door outside handle sub-assembly (for driver door) connector.

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

      Standard Resistance
      for LHD:
      Tester Connection Condition Specified Condition
      S8-14 (USW) - W2-2 (USW) Always Below 1 Ω
      S8-10 (PS1G) - W2-5 (USWG) Always Below 1 Ω
      S8-14 (USW) or W2-2 (USW) - Other terminals and body ground Always 10 kΩ or higher
      S8-10 (PS1G) or W2-5 (USWG) - Other terminals and body ground Always 10 kΩ or higher
      for RHD:
      Tester Connection Condition Specified Condition
      R8-14 (USW) - V2-2 (USW) Always Below 1 Ω
      R8-10 (PS1G) - V2-5 USWG) Always Below 1 Ω
      R8-14 (USW) or V2-2 (USW) - Other terminals and body ground Always 10 kΩ or higher
      R8-10 (PS1G) or V2-5 USWG) - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR DRIVER DOOR)


    1. Remove the door outside handle sub-assembly (for driver door).

      Click here

    2. Inspect the door outside handle sub-assembly (for driver door).

      Click here

      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU (FOR DRIVER DOOR) Click here

    NG

    REPLACE DOOR OUTSIDE HANDLE SUB-ASSEMBLY (FOR DRIVER DOOR) Click here