POWER DOOR LOCK CONTROL SYSTEM All Doors cannot be Locked / Unlocked Simultaneously

DESCRIPTION

The integration relay drives the door lock motors according to switch signals from the door control switch of the power window regulator master switch and the driver side door key cylinder.

However, the driver side door key-linked lock / unlock function will not operate when the seat belt is fastened.

WIRING DIAGRAM

A01J5DPE01
A01J5H7E05

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DOOR LOCK / UNLOCK OPERATION


    1. Proceed to the next step according to the system listed in the table below.

      Symptom Proceed to
      All doors cannot be locked / unlocked at once using door control switch on master switch (switch operation) A
      All doors cannot be locked / unlocked at once using door key cylinder on driver side (key operation) B
      Only one door cannot be locked / unlocked C
      All symptoms listed above are present D

    B

    INSPECT FRONT DOOR LOCK (DRIVER SIDE DOOR LOCK AND UNLOCK SWITCH) Click here

    C

    INSPECT DOOR LOCK (DRIVER SIDE, PASSENGER SIDE, REAR LH, REAR RH AND BACK DOOR) Click here

    D

    INSPECT FUSE (ECU-B, DCC, DOOR) Click here

    A

  2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH (DOOR CONTROL SWITCH)

    A01J2Z8E01

    1. Measure the resistance of the door control switch.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      5 - 3 Lock Below 1 Ω
      5 - 3, 8- 3 OFF 10 kΩ or higher
      8 - 3 Unlock Below 1 Ω

    NG

    REPLACE POWER WINDOW REGULATOR MASTER SWITCH

    OK

  3. CHECK WIRE HARNESS (MASTER SWITCH - INTEGRATION RELAY AND BODY GROUND)

    A01J72DE06

    1. Disconnect the P6 switch connector.

    2. Disconnect the 2A and 2D integration relay connectors.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Specified Condition
      P6-5 - 2A-4 (L1) Below 1 Ω
      P6-8 - 2D-4 (UL1) Below 1 Ω
      P6-3 - Body ground Below 1 Ω
      P6-5 or 2A-4 (L1) - Body ground 10 kΩ or higher
      P6-8 or 2D-4 (UL1) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

  4. INSPECT FRONT DOOR LOCK (DRIVER SIDE DOOR LOCK AND UNLOCK SWITCH)

    A01J6EHE01

    1. w/ Wireless Door Lock Control System:


      1. Measure the resistance of the door lock and unlock switch.

        Standard resistance
        Tester Connection Door Lock Condition Specified Condition
        7 - 9 Lock Below 1 Ω
        7 - 9, 7 - 10 OFF 10 kΩ or higher
        7 - 10 Unlock Below 1 Ω

      2. Measure the resistance of the detection switch.

        Standard resistance
        Tester Connection Door Lock Condition Specified Condition
        7 - 8 Lock 10 kΩ or higher
        7 - 8 Unlock Below 1 Ω

    2. w/o Wireless Door Lock Control System:


      1. Measure the resistance of the door lock and unlock switch.

        Standard resistance
        Tester Connection Door Lock Condition Specified Condition
        7 - 9 Lock Below 1 Ω
        7 - 9, 7 - 10 OFF 10 kΩ or higher
        7 - 10 Unlock Below 1 Ω

    NG

    REPLACE FRONT DOOR LOCK (DRIVER SIDE)

    OK

  5. INSPECT FRONT SEAT INNER BELT (FOR DRIVER SIDE)


    1. A01J6QOE01

      for Power Seat:

      Measure the resistance of the buckle switch.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - 4 Seat belt is unfastened Below 1 Ω
      1 - 4 Seat belt is fastened 1 MΩ or higher
    2. A01J3ZAE16

      for Manual Seat:

      Measure the resistance of the buckle switch.

      Standard resistance
      Tester Connection Switch Condition Specified Condition
      1 - 2 Seat belt is unfastened Below 1 Ω
      1 - 2 Seat belt is fastened 1 MΩ or higher

    NG

    REPLACE FRONT SEAT INNER BELT (FOR DRIVER SIDE)

    OK

  6. CHECK WIRE HARNESS (DRIVER SIDE DOOR LOCK - INTEGRATION RELAY AND BODY GROUND)

    A01J64YE06

    1. Disconnect the D8 door lock connector.

    2. Disconnect the 2A and 2D integration relay connectors.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Condition Specified Condition
      D8-10 - 2D-4 (UL1) Always Below 1 Ω
      D8-9 - 2A-4 (L1) Always Below 1 Ω
      D8-7 - Body ground Driver seat belt is unfastened Below 1 Ω
      D8-8 - 2D-7 (LSWD)* Always Below 1 Ω
      D8-10 or 2D-4 (UL1) - Body ground Always 10 kΩ or higher
      D8-9 or 2A-4 (L1) - Body ground Always 10 kΩ or higher
      D8-8 or 2D-7 (LSWD) - Body ground* Always 10 kΩ or higher

      *: w/ Wireless Door Lock Control System


    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

  7. INSPECT DOOR LOCK (DRIVER SIDE, PASSENGER SIDE, REAR LH, REAR RH AND BACK DOOR)

    A01J3OYE01

    1. Apply battery voltage to the door lock and check the operation of the door lock motor.

      OK
      Driver side, Passenger side, Rear LH, Rear RH
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 4

      Battery negative (-) → Terminal 1

      		 Lock

      Battery positive (+) → Terminal 1

      Battery negative (-) → Terminal 4

      		 Unlock
      Back door
      Measurement Condition Specified Condition

      Battery positive (+) → Terminal 4

      Battery negative (-) → Terminal 3

      		 Lock

      Battery positive (+) → Terminal 3

      Battery negative (-) → Terminal 4

      		 Unlock

    NG

    REPLACE DOOR LOCK

    OK

  8. CHECK WIRE HARNESS (DOOR LOCK - INTEGRATION RELAY AND BODY GROUND)

    A01J467E01

    1. Disconnect the D8, D9, D10 and D11 door lock connectors.

    2. Disconnect the B9 back door lock connector.

    3. Disconnect the 2K and 2R integration relay connectors.

    4. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Specified Condition
      D8-4 - 2R-28 (ACT+) Below 1 Ω
      D8-1 - 2R-27 (ACT-) Below 1 Ω
      D9-4 - 2K-11 (ACT+) Below 1 Ω
      D9-1 - 2K-10 (ACT-) Below 1 Ω
      D10-4 - 2R-28 (ACT+) Below 1 Ω
      D10-1 - 2R-27 (ACT-) Below 1 Ω
      D11-4 - 2K-11 (ACT+) Below 1 Ω
      D11-1 - 2K-10 (ACT-) Below 1 Ω
      B9-4 - 2K-11 (ACT+) Below 1 Ω
      B9-3 - 2K-10 (ACT-) Below 1 Ω
      D8-4 or 2R-28 (ACT+) - Body ground 10 kΩ or higher
      D8-1 or 2R-27 (ACT-) - Body ground 10 kΩ or higher
      D9-4 or 2K-11 (ACT+) - Body ground 10 kΩ or higher
      D9-1 or 2K-10 (ACT-) - Body ground 10 kΩ or higher
      D10-4 or 2R-28 (ACT+) - Body ground 10 kΩ or higher
      D10-1 or 2R-27 (ACT-) - Body ground 10 kΩ or higher
      D11-4 or 2K-11 (ACT+) - Body ground 10 kΩ or higher
      D11-1 or 2K-10 (ACT-) - Body ground 10 kΩ or higher
      B9-4 or 2K-11 (ACT+) - Body ground 10 kΩ or higher
      B9-3 or 2K-10 (ACT-) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY

  9. INSPECT FUSE (ECU-B, DCC, DOOR)


    1. Remove the ECU-B and DCC fuses from the engine room relay block.

    2. Remove the DOOR fuse from the No. 3 relay block.

    3. Measure the resistance of the fuses.

      Standard resistance
      Below 1 Ω

    NG

    REPLACE FUSE

    OK

  10. CHECK WIRE HARNESS (INTEGRATION RELAY - BATTERY AND BODY GROUND)

    A01J67BE01

    1. Disconnect the 2D, 2H and 2L integration relay connectors.

    2. Measure the voltage and resistance of the wire harness side connectors.

      Standard voltage
      Tester Connection Specified Condition
      2L-12 (BECU) - Body ground 11 to 14 V
      2H-4 (ALTB) - Body ground 11 to 14 V
      Standard resistance
      Tester Connection Specified Condition
      2D-9 (GND) - Body ground Below 1 Ω
      2D-18 (GND) - Body ground Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

  11. CHECK WIRE HARNESS (MASTER SWITCH - INTEGRATION RELAY AND BODY GROUND)

    A01J72DE06

    1. Disconnect the P6 switch connector.

    2. Disconnect the 2A and 2D integration relay connectors.

    3. Measure the resistance of the wire harness side connectors.

      Standard resistance
      Tester Connection Specified Condition
      P6-5 - 2A-4 (L1) Below 1 Ω
      P6-8 - 2D-4 (UL1) Below 1 Ω
      P6-3 - Body ground Below 1 Ω
      P6-5 or 2A-4 (L1) - Body ground 10 kΩ or higher
      P6-8 or 2D-4 (UL1) - Body ground 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS AND CONNECTOR

    OK

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY