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

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

The main body ECU (multiplex network body ECU) receives switch signals from the door control switch and activates the door lock motor on each door according to these signals.

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WIRING DIAGRAM

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INSPECTION PROCEDURE

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PROCEDURE


  1. Click here

    READ VALUE USING INTELLIGENT TESTER (DOOR CONTROL SWITCH)


    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.

      Table 1. Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Lock SW-Lock Front passenger door control switch lock signal/ON or OFF

      ON: Lock side of front passenger door control switch pushed

      OFF: Lock side of front passenger door control switch not pushed

      		 -
      Door Lock SW-Unlock Front passenger door control switch unlock signal/ON or OFF

      ON: Unlock side of front passenger door control switch pushed

      OFF: Unlock side of front passenger door control switch not pushed

      		 -
      OK
      The intelligent tester indicates ON or OFF according to the switch operation shown in the table.

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    INSPECT DOOR CONTROL SWITCH ASSEMBLY


    1. A003XL6E09

      Remove the door control switch (Click here).

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      4 (L) - 3 (E) Locked Below 1 Ω
      4 (L) - 3 (E) off 10 kΩ or higher
      2 (UL) - 3 (E) Unlocked Below 1 Ω
      2 (UL) - 3 (E) off 10 kΩ or higher
      Table 2. Text in Illustration
      *a

      Component without harness connected

      (Door Control Switch)
      *b Unlock
      *c Lock

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    CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH - MAIN BODY ECU AND BODY GROUND)


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

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

      Standard Resistance
      Table 3. for LHD
      Tester Connection Condition Specified Condition
      J7-2 (UL) - H16-10 (+B1) Always Below 1 Ω
      J7-4 (L) - H16-9 (L1) Always Below 1 Ω
      J7-3 (E) - Body ground Always Below 1 Ω
      J7-2 (UL) - Body ground Always 10 kΩ or higher
      J7-4 (L) - Body ground Always 10 kΩ or higher
      Table 4. for RHD
      Tester Connection Condition Specified Condition
      K9-2 (UL) - H16-10 (+B1) Always Below 1 Ω
      K9-4 (L) - H16-9 (L1) Always Below 1 Ω
      K9-3 (E) - Body ground Always Below 1 Ω
      K9-2 (UL) - Body ground Always 10 kΩ or higher
      K9-4 (L) - Body ground Always 10 kΩ or higher

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

  5. Click here

    REPLACE DOOR CONTROL SWITCH ASSEMBLYClick here

  6. Click here

    REPAIR OR REPLACE HARNESS OR CONNECTOR