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

DESCRIPTION

The body ECU receives switch signals from the power window regulator master switch assembly and driver door key cylinder lock or unlock switch signals from the front door lock assembly RH. The body ECU activates the door lock motor on each door according to these signals.

WIRING DIAGRAM


  1. Figure 1. w/o Smart Entry and Start System

    B003OMLE10

    Figure 2. w/ Smart Entry and Start System

    B003KAIE07

CAUTION / NOTICE / HINT

Note


  • If the body ECU has been replaced, it is necessary to initialize the body ECU.

    Click here

  • As the door control battery is installed between the vehicle battery and body ECU, first perform the inspections to confirm that there are no malfunctions in the power source circuit for the body ECU before performing this troubleshooting procedure.

    Click here

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation.

      Click here

      Result
      Result Proceed to
      All doors cannot be locked by power window regulator master switch assembly (w/o Smart Entry and Start System) A
      All doors cannot be locked by power window regulator master switch assembly (w/ Smart Entry and Start System) B
      All doors cannot be locked by driver door key cylinder C

    B

    CHECK POWER WINDOW CONTROL SYSTEM Click here

    C

    INSPECT FRONT DOOR LOCK ASSEMBLY Click here

    A

  2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY


    1. Remove the power window regulator master switch assembly.

      Click here

    2. Inspect the power window regulator master switch assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - BODY ECU AND BODY GROUND)


    1. Disconnect the K15*1 or J14*2 power window regulator master switch assembly connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the G33 body ECU connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      K15-2 (L) - G33-19 (L1) Always Below 1 Ω
      K15-2 (L) or G33-19 (L1) - Body ground Always 10 kΩ or higher
      K15-8 (UL) - G33-12 (UL1) Always Below 1 Ω
      K15-8 (UL) or G33-12 (UL1) - Body ground Always 10 kΩ or higher
      K15-1 (E) - Body ground Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      J14-8 (L) - G33-19 (L1) Always Below 1 Ω
      J14-8 (L) or G33-19 (L1) - Body ground Always 10 kΩ or higher
      J14-2 (UL) - G33-12 (UL1) Always Below 1 Ω
      J14-2 (UL) or G33-12 (UL1) - Body ground Always 10 kΩ or higher
      J14-9 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BODY ECU for LHD: Click here
    REPLACE BODY ECU for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. CHECK POWER WINDOW CONTROL SYSTEM


    1. Check the power window control system.

      Click here

      OK
      Power window control system operates normally.
      Result
      Proceed to
      OK
      NG

    NG

    GO TO POWER WINDOW CONTROL SYSTEM Click here

    OK

  5. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY


    1. Replace the power window master switch assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK DOOR LOCK OPERATION


    1. Check door lock operation.

      Click here

      OK
      Power door lock control system operates normally.
      Result
      Proceed to
      OK
      NG

    OK

    END (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE BODY ECU for LHD: Click here
    REPLACE BODY ECU for RHD: Click here

  7. INSPECT FRONT DOOR LOCK ASSEMBLY


    1. Remove the front door lock assembly RH.

      Click here

    2. Inspect the front door lock assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY Click here

    OK

  8. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY - BODY ECU AND BODY GROUND)


    1. Disconnect the K1*1 or J1*2 front door lock assembly LH*1 or RH*2 connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the G33 body ECU connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      K1-9 (L) - G33-18 (L2) Always Below 1 Ω
      K1-9 (L) or G33-18 (L2) - Body ground Always 10 kΩ or higher
      K1-10 (UL) - G33-11 (UL2) Always Below 1 Ω
      K1-10 (UL) or G33-11 (UL2) - Body ground Always 10 kΩ or higher
      K1-7 (E) - Body ground Always Below 1 Ω
      for RHD, w/o Double Locking System
      Tester Connection Condition Specified Condition
      J1-6 (L) - G33-18 (L2) Always Below 1 Ω
      J1-6 (L) or G33-18 (L2) - Body ground Always 10 kΩ or higher
      J1-5 (UL) - G33-11 (UL2) Always Below 1 Ω
      J1-5 (UL) or G33-11 (UL2) - Body ground Always 10 kΩ or higher
      J1-8 (E) - Body ground Always Below 1 Ω
      for RHD, w/ Double Locking System
      Tester Connection Condition Specified Condition
      J1-6 (L) - G33-18 (L2) Always Below 1 Ω
      J1-6 (L) or G33-18 (L2) - Body ground Always 10 kΩ or higher
      J1-5 (UL) - G33-4 (UL3) Always Below 1 Ω
      J1-5 (UL) or G33-4 (UL3) - Body ground Always 10 kΩ or higher
      J1-8 (E) - Body ground Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE BODY ECU for LHD: Click here
    REPLACE BODY ECU for RHD: Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR