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 door control switch assembly and activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

B006ZXAE09

CAUTION / NOTICE / HINT

Note


  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.*


    • *: w/ Smart Entry and Start System

PROCEDURE


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


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    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 Door control switch assembly lock signal OFF or ON

      OFF: Lock side of door control switch assembly not pushed

      ON: Lock side of door control switch assembly pushed

      		 -
      Door Lock SW-Unlock Door control switch assembly unlock signal OFF or ON

      OFF: Unlock side of door control switch assembly not pushed

      ON: Unlock side of door control switch assembly 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 DOOR CONTROL SWITCH ASSEMBLY


    1. Remove the door control switch assembly.

      Click here

    2. Inspect the door control switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DOOR CONTROL SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the 3A and 3B instrument panel junction block assembly connectors.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      N4-2 (UL) - 3A-39 Always Below 1 Ω
      N4-4 (L) - 3B-16 Always Below 1 Ω
      N4-5 (E) - Body ground Always Below 1 Ω
      3A-39 or N4-2 (UL) - Other terminals and body ground Always 10 kΩ or higher
      3B-16 or N4-4 (L) - Other terminals and 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).

      B0070MXC07
      *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) - 3A-39 Always Below 1 Ω
      MB-20 (L1) - 3B-16 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