POWER DOOR LOCK CONTROL SYSTEM All Doors LOCK/UNLOCK Functions do not Operate Via Master Switch, Driver Side Door Key Cylinder

DESCRIPTION

The main body ECU (multiplex network body ECU) receives door control switch signals from the power window regulator master switch assembly, and driver side door key cylinder switch signals from the front door lock assembly (for driver side). The main body ECU (multiplex network body ECU) activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

A003SKIE01

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DOOR LOCK OPERATION


    1. Check door lock operation Click here.

      Result
      Result Proceed to
      All doors cannot be locked through power window regulator master switch A
      All doors cannot be locked through driver door key cylinder B

    B

    READ VALUE USING INTELLIGENT TESTER (DOOR KEY LINKED LOCK AND UNLOCK SWITCH) Click here

    A

  2. CHECK DTC OUTPUT (LIN COMMUNICATION SYSTEM)


    1. Clear the DTCs Click here.

    2. Recheck for DTCs.

      OK
      DTC B1206 is not output.

    NG

    GO TO LIN COMMUNICATION SYSTEM (DTC B1206) Click here

    OK

  3. REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY


    1. Replace the power window regulator master switch assembly Click here.


    NEXT

  4. CHECK DOOR LOCK OPERATION


    1. Check that all doors can be locked and unlocked by using the power window regulator master switch Click here.

      OK
      All doors can be locked and unlocked with the power window regulator master switch.

    NG

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    OK

    END (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY WAS DEFECTIVE)

  5. READ VALUE USING INTELLIGENT TESTER (DOOR KEY LINKED LOCK AND UNLOCK SWITCH)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the Data List according to the display on the intelligent tester.

      Main Body (Main Body ECU (Multiplex Network Body ECU))
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Door Key SW-Lock Driver door key-linked lock/unlock switch lock signal/ON or OFF

      ON: Driver door key cylinder turned to lock position

      OFF: Driver door key cylinder not turned to lock position

      		 -
      Door Key SW-Unlock Driver door key-linked lock/unlock switch unlock signal/ON or OFF

      ON: Driver door key cylinder turned to unlock position

      OFF: Driver door key cylinder not turned to unlock position

      		 -
      OK
      The intelligent tester indicates ON or OFF according to the key cylinder operation shown in the table.

    NG

    INSPECT FRONT DOOR LOCK ASSEMBLY (for DRIVER SIDE) (DOOR KEY LINKED LOCK AND UNLOCK SWITCH) Click here

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

  6. INSPECT FRONT DOOR LOCK ASSEMBLY (for DRIVER SIDE) (DOOR KEY LINKED LOCK AND UNLOCK SWITCH)


    1. Remove the front door lock assembly (for driver side) Click here.

    2. for LHD


      1. A003TWEE17
        Text in Illustration
        *1

        Component without harness connected

        (Front Door Lock Assembly LH)
        *a Lock
        *b Unlock

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        9 (L) - 7 (E) Locked Below 1 Ω
        9 (L) - 7 (E) off 10 kΩ or higher
        10 (UL) - 7 (E) Unlocked Below 1 Ω
        10 (UL) - 7 (E) off 10 kΩ or higher

    3. for RHD (w/o Double Locking System)


      1. A003SC7E02
        Text in Illustration
        *1

        Component without harness connected

        (Front Door Lock Assembly RH)
        *a Lock
        *b Unlock

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        6 (L) - 8 (E) Locked Below 1 Ω
        6 (L) - 8 (E) off 10 kΩ or higher
        5 (UL) - 8 (E) Unlocked Below 1 Ω
        5 (UL) - 8 (E) off 10 kΩ or higher

    4. for RHD (w/ Double Locking System)


      1. A003TPYE01
        Text in Illustration
        *1

        Component without harness connected

        (Front Door Lock Assembly RH)
        *a Lock
        *b Unlock

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        6 (L) - 8 (E) Locked Below 1 Ω
        6 (L) - 8 (E) off 10 kΩ or higher
        5 (UL) - 8 (E) Unlocked Below 1 Ω
        5 (UL) - 8 (E) off 10 kΩ or higher

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY (for DRIVER SIDE) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK - MAIN BODY ECU)


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

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      I5-9 (L) - E120-11 (L2) Always Below 1 Ω
      I5-10 (UL) - E120-12 (UL2) Always Below 1 Ω
      I5-7 (E) - Body ground Always Below 1 Ω
      E120-11 (L2) - Body ground Always 10 kΩ or higher
      E120-12 (UL2) - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      H6-6 (L) - E120-11 (L2) Always Below 1 Ω
      H6-5 (UL) - E120-12 (UL2) Always Below 1 Ω
      H6-8 (E) - Body ground Always Below 1 Ω
      E120-11 (L2) - Body ground Always 10 kΩ or higher
      E120-12 (UL2) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)