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POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch

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DTC Code DTC Name
  All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch
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DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the multiplex network master switch assembly via LIN communication system. The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

Table 1. *1 Multiplex Network Master Switch Assembly *2 Front Multiplex Network Door ECU (for Driver Door) *3 Main Body ECU (Multiplex Network Body ECU) *4 LIN Communication Line
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WIRING DIAGRAM

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CAUTION / NOTICE / HINT

Note:

  • 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.

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

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PROCEDURE


  1. Click here

    CHECK POWER WINDOW CONTROL SYSTEM


    1. Check that the power window operates normally via multiplex network master switch assembly.

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      OK
      Each power window operates normally.
      Result
      Proceed to
      OK
      NG

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    READ VALUE USING GTS (Door Lock Switch Status, Door Unlock Switch Status)


    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 / Master Switch / Data List.

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


      1. Body Electrical > Master Switch > Data List
        Tester Display Measurement Item Range Normal Condition Diagnostic Note
        Door Lock Switch Status Multiplex network master switch assembly lock signal OFF or ON

        OFF: Lock side of multiplex network master switch assembly not pushed

        ON: Lock side of multiplex network master switch assembly pushed

        		 -
        Door Unlock Switch Status Multiplex network master switch assembly unlock signal OFF or ON

        OFF: Unlock side of multiplex network master switch assembly not pushed

        ON: Unlock side of multiplex network master switch assembly pushed

        		 -




      1. Body Electrical > Master Switch > Data List
        Tester Display
        Door Lock Switch Status
        Door Unlock Switch Status





      OK
      On the GTS screen, ON or OFF is displayed for each item according to the table above.
      Result
      Proceed to
      OK
      NG

    • OK

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

    • NG

      REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLYClick here