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

WIRING DIAGRAM

B004WZDE07

CAUTION / NOTICE / HINT

Note

If the main body ECU (multiplex network body ECU) is replaced, refer to the 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 Front passenger door control switch lock signal OFF or ON

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

      ON: Lock side of front passenger door control switch pushed

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

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

      ON: Unlock side of front passenger door control switch 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

    • *2: for RHD


    1. Disconnect the I1*1 or I4*2 power window regulator switch assembly connector.

    2. Disconnect the 5D*1 or 5A*2 instrument panel junction block assembly connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I1-12 (L) - 5D-13 Always Below 1 Ω
      I1-7 (UL) - 5D-12 Always Below 1 Ω
      I1-12 (L) or 5D-13 - Other terminals and body ground Always 10 kΩ or higher
      I1-7 (UL) or 5D-12 - Other terminals and body ground Always 10 kΩ or higher
      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      I4-12 (L) - 5A-38 Always Below 1 Ω
      I4-7 (UL) - 5A-39 Always Below 1 Ω
      I4-12 (L) or 5A-38 - Other terminals and body ground Always 10 kΩ or higher
      I4-7 (UL) or 5A-39 - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH ASSEMBLY - BODY GROUND)


    1. Disconnect the I1*1 or I4*2 power window regulator switch assembly connector.


      • *1: for LHD

      • *2: for RHD

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I1-5 (GND) - Body Ground Always Below 1 Ω
      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      I4-5 (GND) - Body Ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    NG

    CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (for Front Passenger Door) - POWER WINDOW REGULATOR SWITCH ASSEMBLY AND BODY GROUND) Click here

    OK

  5. 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) from the instrument panel junction block assembly.

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

      B004WTKC02
      *A for LHD *B for RHD
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      A-20 (L1) - 5D-13 Always Below 1 Ω
      A-22 (UL1) - 5D-12 Always Below 1 Ω
      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      A-20 (L1) - 5A-38 Always Below 1 Ω
      A-22 (UL1) - 5A-39 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

  6. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU (for Front Passenger Door) - POWER WINDOW REGULATOR SWITCH ASSEMBLY AND BODY GROUND)


    • *1: for LHD

    • *2: for RHD


    1. Disconnect the I1*1 or I4*2 power window regulator switch assembly connector.

    2. Disconnect the H12*1 or H31*2 front multiplex network door ECU (for Front Passenger Door) connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I1-5 (GND) - H12-9 (SGND) Always Below 1 Ω
      H12-1 (GND) - Body ground Always Below 1 Ω
      I1-5 (GND) or H12-9 (SGND) - Other terminals and body ground Always 10 kΩ or higher
      Standard Resistance
      for RHD
      Tester Connection Condition Specified Condition
      I4-5 (GND) - H31-9 (SGND) Always Below 1 Ω
      H31-1 (GND) - Body ground Always Below 1 Ω
      I4-5 (GND) or H31-9 (SGND) - Other terminals and body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE FRONT MULTIPLEX NETWORK DOOR ECU (for Front Passenger Door) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR