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 (instrument panel junction block) receives switch signals from the power window master switch and driver side door key cylinder, and activates the door lock motor on each door according to these signals.

WIRING DIAGRAM

A017F44E01
A017B6QE02

INSPECTION PROCEDURE

PROCEDURE


  1. INSPECT FUSE (DOOR1)


    1. Remove the DOOR1 fuse from the engine room relay block.

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

      Standard resistance
      Tester Connection Condition Specified Condition
      DOOR1 fuse Always Below 1 Ω

    NG

    REPLACE FUSE (DOOR1)

    OK

  2. CHECK DOOR LOCK OPERATION

    Result
    Result Proceed to
    Doors cannot be locked through driver side door key cylinder. A
    Doors cannot be locked through master switch. B

    A

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

    B

  3. READ VALUE USING INTELLIGENT TESTER (DOOR CONTROL SWITCH)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG).

    3. Turn the tester on.

    4. Select Door Lock SW-Lock or Door Lock SW-Unlock in the Data List and read the tester display.

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

      ON: Door control switch on power window regulator master switch is pushed to LOCK

      OFF: Door control switch on power window regulator master switch is not pushed

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

      ON: Door control switch on power window regulator master switch is pushed to UNLOCK

      OFF: Door control switch on power window regulator master switch is not pushed

      		 -
      OK
      On the tester screen, each item changes between ON and OFF according to the chart above.

    NG

    INSPECT POWER WINDOW MASTER SWITCH Click here

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

  4. INSPECT POWER WINDOW MASTER SWITCH


    1. Remove the power window master switch Click here.

    2. for LHD:


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

        A017DODE13
        Standard resistance
        Tester Connection Condition Specified Condition
        1 - 2 Locked Below 1 Ω

        1 - 2

        1 - 9

        		 OFF (Free) 10 kΩ or higher
        1 - 9 Unlocked Below 1 Ω

    3. for RHD:


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

        A017DODE17
        Standard resistance
        Tester Connection Condition Specified Condition
        9 - 2 Locked Below 1 Ω

        9 - 2

        9 - 8

        		 OFF (Free) 10 kΩ or higher
        9 - 8 Unlocked Below 1 Ω

    NG

    REPLACE POWER WINDOW MASTER SWITCH Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (POWER WINDOW MASTER SWITCH CIRCUIT)


    1. Disconnect the instrument panel junction block connector.

    2. A017CS1E01

      for LHD:


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

        Standard resistance
        Tester Connection Condition Specified Condition
        M1-2 (L) - 1K-15 Always Below 1 Ω
        M1-9 (UL) - 1K-12 Always Below 1 Ω
        M1-1 (E) - Body ground Always Below 1 Ω
        M1-2 (L) - Body ground Always 10 kΩ or higher
        M1-9 (UL) - Body ground Always 10 kΩ or higher
    3. A017CS1E02

      for RHD:


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

        Standard resistance
        Tester Connection Condition Specified Condition
        L1-2 (L) - 1K-15 Always Below 1 Ω
        L1-8 (UL) - 1K-12 Always Below 1 Ω
        L1-9 (E) - Body ground Always Below 1 Ω
        L1-2 (L) - Body ground Always 10 kΩ or higher
        L1-8 (UL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

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


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch on (IG).

    3. Turn the tester on.

    4. Select Door Key SW-Lock or Door Key SW-Unlock in the Data List and read the tester display.

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

      ON: Driver side door key cylinder is turned to LOCK

      OFF: Driver side door key cylinder is not turned

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

      ON: Driver side door key cylinder is turned to UNLOCK

      OFF: Driver side door key cylinder is not turned

      		 -
      OK
      On the tester screen, each item changes between ON and OFF according to the chart above.

    NG

    INSPECT FRONT DOOR LOCK ASSEMBLY (FOR DRIVER SIDE) Click here

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)

  7. INSPECT FRONT DOOR LOCK ASSEMBLY (FOR DRIVER SIDE)


    1. Remove the front door lock assembly (for Driver Side) Click here.

    2. A017D9TE07

      for LHD:


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

        Standard resistance
        Tester Connection Condition Specified Condition
        7 - 9 Locked Below 1 Ω

        7 - 9

        7 - 10

        		 OFF (Free) 10 kΩ or higher
        7 - 10 Unlocked Below 1 Ω
    3. A017F7ME01

      for RHD:


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

        Standard resistance
        Tester Connection Condition Specified Condition
        8 - 6 Locked Below 1 Ω

        8 - 6

        8 - 5

        		 OFF (Free) 10 kΩ or higher
        8 - 5 Unlocked Below 1 Ω

    NG

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

    OK

  8. CHECK HARNESS AND CONNECTOR (DOOR KEY LINKED LOCK UNLOCK SWITCH CIRCUIT)


    1. for LHD:


      1. Disconnect the instrument panel junction block connector.

        A017FCXE01

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

        Standard resistance
        Tester Connection Condition Specified Condition
        H6-9 (L) - 1K-16 (L2) Always Below 1 Ω
        H6-10 (UL) - 1K-7 (UL2) Always Below 1 Ω
        H6-7 (E) - Body ground Always Below 1 Ω
        H6-9 (L) - Body ground Always 10 kΩ or higher
        H6-10 (UL) - Body ground Always 10 kΩ or higher

    2. for RHD:


      1. Disconnect the main body ECU (instrument panel junction block) and instrument panel junction block connectors.

        A017EY5E03

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

        Standard resistance
        Tester Connection Condition Specified Condition
        G8-6 (L) - 1K-16 Always Below 1 Ω
        G8-5 (UL) - D7-10 (UL3) Always Below 1 Ω
        G8-8 (E) - Body ground Always Below 1 Ω
        G8-6 (L) - Body ground Always 10 kΩ or higher
        G8-5 (UL) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU (INSTRUMENT PANEL JUNCTION BLOCK)