POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Door Control Switch or Door Key Cylinder

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly and driver door key cylinder lock or unlock switch signals from the front door lock with motor assembly RH*1 or front door lock with motor assembly LH*2. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.


WIRING DIAGRAM

A011O0ZE28

CAUTION / NOTICE / HINT

Note


  • If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

  • The power door lock control system uses the LIN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the power door lock control system after confirming that the communication systems are functioning properly.

    Click here

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation.

      Click here

      Result
      Result Proceed to
      All doors cannot be locked by multiplex network master switch assembly A
      All doors cannot be locked by driver door key cylinder B

    B

    READ VALUE USING GTS (Door Key SW-Lock, D Door Key SW-UL) Click here

    A

  2. CHECK FOR DTC (LIN COMMUNICATION SYSTEM)


    1. Clear the DTCs.

      Click here


      Body Electrical > Main Body > Clear DTCs

    2. Recheck for DTCs.


      Body Electrical > Main Body > Trouble Codes
      OK
      DTC B1206 is not output.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO LIN COMMUNICATION SYSTEM (DTC B1206) Click here

    OK

  3. REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY


    1. Replace the multiplex network master switch assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK DOOR LOCK OPERATION


    1. Check that all doors can be locked and unlocked by the multiplex network master switch assembly.

      Click here

      OK
      All doors can be locked and unlocked by the multiplex network master switch assembly.
      Result
      Proceed to
      OK
      NG

    OK

    END (MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

  5. READ VALUE USING GTS (Door Key SW-Lock, D Door Key SW-UL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

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


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Door Key SW-Lock Driver door key-linked lock / unlock switch lock signal ON or OFF

      ON: Driver door key cylinder turned to lock position

      OFF: Driver door key cylinder not turned to lock position

      		 -
      D Door Key SW-UL Driver door key-linked lock / unlock switch unlock signal ON or OFF

      ON: Driver door key cylinder turned to unlock position

      OFF: Driver door key cylinder not turned to unlock position

      		 -

      Body Electrical > Main Body > Data List
      Tester Display
      Door Key SW-Lock
      D Door Key SW-UL
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

  6. INSPECT FRONT DOOR LOCK WITH MOTOR ASSEMBLY


    1. for LHD


      1. Remove the front door lock with motor assembly LH.

        Click here

      2. Inspect the front door lock with motor assembly LH.

        Click here

    2. for RHD


      1. Remove the front door lock with motor assembly RH.

        Click here

      2. Inspect the front door lock with motor assembly RH.

        Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR LOCK WITH MOTOR ASSEMBLY Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK WITH MOTOR ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. for LHD


      1. Disconnect the K2 main body ECU (multiplex network body ECU) connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N16-9 (L) - K2-29 (L2) Always Below 1 Ω
        N16-10 (UL) - K2-2 (UL3) Always Below 1 Ω
        N16-7 (E) - Body ground Always Below 1 Ω
        N16-9 (L) - Body ground Always 10 kΩ or higher
        N16-10 (UL) - Body ground Always 10 kΩ or higher
        K2-29 (L2) - Body ground Always 10 kΩ or higher
        K2-2 (UL3) - Body ground Always 10 kΩ or higher

    2. for RHD


      1. Disconnect the K2 main body ECU (multiplex network body ECU) connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N1-6 (L) - K2-29 (L2) Always Below 1 Ω
        N1-5 (UL) - K2-2 (UL3) Always Below 1 Ω
        N1-8 (E) - Body ground Always Below 1 Ω
        N1-6 (L) - Body ground Always 10 kΩ or higher
        N1-5 (UL) - Body ground Always 10 kΩ or higher
        K2-29 (L2) - Body ground Always 10 kΩ or higher
        K2-2 (UL3) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR