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 on the front passenger door and activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

A01I5XHE29

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING TECHSTREAM (DOOR CONTROL SWITCH ASSEMBLY)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the Techstream on.

    4. Enter the following menus: Body Electrical / Main Body / Data List.

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

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

      ON: Lock side of door control switch assembly pushed

      OFF: Lock side of door control switch assembly not pushed

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

      ON: Unlock side of door control switch assembly pushed

      OFF: Unlock side of door control switch assembly not pushed

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

    NG

    INSPECT DOOR CONTROL SWITCH ASSEMBLY Click here

    OK

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

  2. INSPECT DOOR CONTROL SWITCH ASSEMBLY


    1. Remove the door control switch assembly Click here.

    2. Inspect the door control switch assembly Click here.


    NG

    REPLACE DOOR CONTROL SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (DOOR CONTROL SWITCH ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the I13 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J12-2 (UL) - I13-10 (UL) Always Below 1 Ω
      J12-4 (L) - I13-9 (L1) Always Below 1 Ω
      J12-3 (E) - Body ground Always Below 1 Ω
      J12-2 (UL) - Body ground Always 10 kΩ or higher
      J12-4 (L) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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