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

DESCRIPTION

The main body ECU (multiplex network body ECU) receives switch signals from the power window regulator switch assembly on the front passenger door and activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

A011MP1E02

CAUTION / NOTICE / HINT

Note


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

PROCEDURE


  1. READ VALUE USING GTS (Door Lock SW-Lock, Door Lock SW-Unlock)


    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 Lock SW-Lock Power window regulator switch assembly lock signal ON or OFF

      ON: Lock side of power window regulator switch assembly pushed

      OFF: Lock side of power window regulator switch assembly not pushed

      		 -
      Door Lock SW-Unlock Power window regulator switch assembly unlock signal ON or OFF

      ON: Unlock side of power window regulator switch assembly pushed

      OFF: Unlock side of power window regulator switch assembly not pushed

      		 -

      Body Electrical > Main Body > Data List
      Tester Display
      Door Lock SW-Lock
      Door Lock SW-Unlock
      OK
      The GTS indicates ON or OFF according to the switch operation shown in the table.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY


    1. Remove the power window regulator switch assembly.

      Click here

    2. Inspect the power window regulator switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH ASSEMBLY -INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. for LHD


      1. Disconnect the 4B instrument panel junction block assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N4-7 (UL) - 4B-24 Always Below 1 Ω
        N4-12 (L) - 4B-25 Always Below 1 Ω
        N4-5 (GND) - Body ground Always Below 1 Ω
        4B-24 - Body ground Always 10 kΩ or higher
        4B-25 - Body ground Always 10 kΩ or higher
        N4-7 (UL) - Body ground Always 10 kΩ or higher
        N4-12 (L) - Body ground Always 10 kΩ or higher

    2. for RHD


      1. Disconnect the 4B instrument panel junction block assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        N19-7 (UL) - 4B-24 Always Below 1 Ω
        N19-12 (L) - 4B-25 Always Below 1 Ω
        N19-5 (GND) - Body ground Always Below 1 Ω
        4B-24 - Body ground Always 10 kΩ or higher
        4B-25 - Body ground Always 10 kΩ or higher
        N19-7 (UL) - Body ground Always 10 kΩ or higher
        N19-12 (L) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

      Click here

    2. Remove the main body ECU (multiplex network body ECU).

      A011QDUC02
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      MB-22 (UL1) - 4B-24 Always Below 1 Ω
      MB-20 (L1) - 4B-25 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here