POWER DOOR LOCK CONTROL SYSTEM Collision Door Lock Release Function does not Operate

DESCRIPTION

When an impact is detected, a relay inside the main body ECU (multiplex network body ECU) is operated to switch the power source of the door lock with motor assemblies from the vehicle battery to the door control battery.

WIRING DIAGRAM

B001AVEE06

CAUTION / NOTICE / HINT

Note

Inspect the fuses for circuits related to this system before performing the following procedure.

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation Click here.

      OK
      All doors lock and unlock normally.

    NG

    GO TO PROBLEM SYMPTOMS TABLE Click here

    OK

  2. CHECK DOOR CONTROL BATTERY


    1. B0018JFE02
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Door Control Battery)

      Disconnect the door control battery connector.

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      E148-8 (IG) - Body ground Engine switch On (IG) 11 to 14 V

    NG

    CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - DOOR CONTROL BATTERY) Click here

    OK

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


    1. Disconnect the 2J main body ECU (multiplex network body ECU) connector.

    2. Disconnect the E148 door control battery connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      E117-3 (ACTG) - E148-9 (ACTG) Always Below 1 Ω
      E117-3 (ACTG) or E148-9 (ACTG) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. REPLACE DOOR CONTROL BATTERY


    1. Replace the door control battery with new or known good one.

      for LHD: Click here

      for RHD: Click here


    NEXT

  5. CHECK DOOR CONTROL BATTERY


    1. Check door control battery operation Click here.

      OK
      Collision detection door lock function operates normally.
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

    END (DOOR CONTROL BATTERY WAS DEFECTIVE)

    B

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

    C

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

  6. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) - DOOR CONTROL BATTERY)


    1. Disconnect the 2J main body ECU (multiplex network body ECU) connector.

    2. Disconnect the E148 door control battery connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2J-12 - E148-8 (IG) Always Below 1 Ω
      2J-12 or E148-8 (IG)) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

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

    B

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

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR