Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK DOOR LOCK / UNLOCK OPERATION

INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR CONTROL SWITCH)

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

INSPECT FRONT DOOR LOCK FOR DRIVER SIDE (DOOR LOCK MOTOR, DOOR LOCK AND UNLOCK SWITCH)

INSPECT FRONT SEAT INNER BELT ASSEMBLY (FOR DRIVER SIDE)

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

CONFIRM SYMPTOM

INSPECT DOOR LOCK ASSEMBLY (FOR PASSENGER SIDE, REAR LH, REAR RH, BACK DOOR)

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

INSPECT DOOR LOCK (FOR DRIVER SIDE)

CHECK WIRE HARNESS (DOOR LOCK - INTEGRATION RELAY)

CHECK WIRE HARNESS (DOOR LOCK - THEFT WARNING ECU)

INSPECT FUSE (ECU-B, DCC, DOOR)

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

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

POWER DOOR LOCK CONTROL SYSTEM (w/ Theft Deterrent 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


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously


INSPECTION PROCEDURE

1.CHECK DOOR LOCK / UNLOCK OPERATION

  1. Proceed to the next step according to the symptom 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
Go to step 4

C
Go to step 7

D
Go to step 13
A


2.INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR CONTROL SWITCH)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  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 ASSEMBLY
OK


3.CHECK WIRE HARNESS (MASTER SWITCH - INTEGRATION RELAY AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Disconnect the P6 switch connector.

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

  1. 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 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

4.INSPECT FRONT DOOR LOCK FOR DRIVER SIDE (DOOR LOCK MOTOR, DOOR LOCK AND UNLOCK SWITCH)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

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

    OK:
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 4
    Battery negative (-) → Terminal 1
    		Lock
    Battery positive (+) → Terminal 1
    Battery negative (-) → Terminal 4
    		Unlock

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

    Standard resistance:
    Tester Connection
    		Door Lock Condition
    		Specified Condition
    6 - 8
    		Lock
    		Below 1 Ω
    5 - 8, 6 - 8
    		OFF
    		10 kΩ or higher
    5 - 8
    		Unlock
    		Below 1 Ω


NG
REPLACE FRONT DOOR LOCK ASSEMBLY (FOR DRIVER SIDE)
OK


5.INSPECT FRONT SEAT INNER BELT ASSEMBLY (FOR DRIVER SIDE)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Measure the resistance of the buckle switch.

    Standard resistance:
    Tester Connection
    		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 ASSEMBLY (FOR DRIVER SIDE)
OK


6.CHECK WIRE HARNESS (DRIVER SIDE DOOR LOCK - INTEGRATION RELAY AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Disconnect the D8 door lock connector.

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

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    D8-5 - 2D-4 (UL1)
    		Always
    		Below 1 Ω
    D8-6 - 2A-4 (L1)
    		Always
    		Below 1 Ω
    D8-8 - Body ground
    		Driver seat belt is not fastened
    		Below 1 Ω
    D8-5 or 2D-4 (UL1) - Body ground
    		Always
    		10 kΩ or higher
    D8-6 or 2A-4 (L1) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

7.CONFIRM SYMPTOM

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

    Symptom
    		Proceed to
    Passenger door, rear door LH, rear door RH or back door cannot be locked/unlocked
    		A
    Driver door cannot be locked/unlocked
    		B


B
Go to step 10
A


8.INSPECT DOOR LOCK ASSEMBLY (FOR PASSENGER SIDE, REAR LH, REAR RH, BACK DOOR)

Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

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

    OK:
    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 ASSEMBLY
OK


9.CHECK WIRE HARNESS (DOOR LOCK - INTEGRATION RELAY AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Disconnect the D9, D10 or D11 door lock connector.

  1. Disconnect the B9 back door lock connector.

  1. Disconnect the 2K or 2R relay connector.

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

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

10.INSPECT DOOR LOCK (FOR DRIVER SIDE)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

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

    OK:
    Measurement Condition
    		Specified Condition
    Battery positive (+) → Terminal 4
    Battery negative (-) → Terminal 1
    		Lock
    Battery positive (+) → Terminal 1
    Battery negative (-) → Terminal 4
    		Unlock


NG
REPLACE DOOR LOCK ASSEMBLY
OK


11.CHECK WIRE HARNESS (DOOR LOCK - INTEGRATION RELAY)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Disconnect the D8 door lock connector.

  1. Disconnect the 2R relay connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    D8-4 - 2R-28 (ACT+)
    		Below 1 Ω
    D8-4 or 2R-28 (ACT+) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


12.CHECK WIRE HARNESS (DOOR LOCK - THEFT WARNING ECU)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Disconnect the D8 door lock connector.

  1. Disconnect the T16 ECU connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    D8-1 - T16-11 (DDUL)
    		Below 1 Ω
    T16-1 (E) - Body ground
    		Below 1 Ω
    D8-1 or T16-11 (DDUL) - Body ground
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE THEFT WARNING ECU

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

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

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

  1. Measure the resistance of the fuse.

    Standard resistance:
    Below 1 Ω


NG
REPLACE FUSE
OK


14.CHECK WIRE HARNESS (INTEGRATION RELAY - BATTERY AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

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

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

    Standard voltage:
    Tester Connection
    		Specified Condition
    2L-12 (BECU) - Body ground
    		10 to 14 V
    2H-4 (ALTB) - Body ground
    		10 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


15.CHECK WIRE HARNESS (MASTER SWITCH - INTEGRATION RELAY AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Power Door Lock Control System (W/ Theft Deterrent System).Power Door Lock Control System (W/ Theft Deterrent System) All Doors Cannot Be Locked / Unlocked Simultaneously

  1. Disconnect the P6 switch connector.

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

  1. 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 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY