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


DESCRIPTION

The door control 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


B112005E03


INSPECTION 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
Go to step 4

C
Go to step 7

D
Go to step 9
A


2.INSPECT POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (DOOR CONTROL SWITCH)
B112007E01

  1. Measure the resistance of the door control switch.

    Standard resistance:
    Double cab:
    Tester Connection
    		Switch Condition
    		Specified Condition
    3 - 5
    		Lock
    		Below 1 Ω
    3 - 5, 3 - 8
    		OFF
    		10 kΩ or higher
    3 - 8
    		Unlock
    		Below 1 Ω
    LHD (Extra cab, Single cab):
    Tester Connection
    		Switch Condition
    		Specified Condition
    1 - 2
    		Lock
    		Below 1 Ω
    1 - 2, 1 - 5
    		OFF
    		10 kΩ or higher
    1 - 5
    		Unlock
    		Below 1 Ω
    RHD (Extra cab, Single cab):
    Tester Connection
    		Switch Condition
    		Specified Condition
    3 - 10
    		Lock
    		Below 1 Ω
    3 - 10, 4- 10
    		OFF
    		10 kΩ or higher
    4 - 10
    		Unlock
    		Below 1 Ω



NG
REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY
OK


3.CHECK WIRE HARNESS (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) AND BODY GROUND)
B112006E03

  1. Disconnect the P4 switch connector.

  1. Disconnect the 2A and 2D junction block connectors.

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

    Standard resistance:
    Double cab:
    Tester Connection
    		Specified Condition
    P4-5 - 2A-4 (L1)
    		Below 1 Ω
    P4-8 - 2D-4 (UL1)
    		Below 1 Ω
    P4-3 - Body ground
    		Below 1 Ω
    P4-5 or 2A-4 (L1) - Body ground
    		10 kΩ or higher
    P4-8 or 2D-4 (UL1) - Body ground
    		10 kΩ or higher
    LHD (Extra cab, Single cab):
    Tester Connection
    		Specified Condition
    P4-2 - 2A-4 (L1)
    		Below 1 Ω
    P4-5 - 2D-4 (UL1)
    		Below 1 Ω
    P4-1 - Body ground
    		Below 1 Ω
    P4-2 or 2A-4 (L1) - Body ground
    		10 kΩ or higher
    P4-5 or 2D-4 (UL1) - Body ground
    		10 kΩ or higher
    RHD (Extra cab, Single cab):
    Tester Connection
    		Specified Condition
    P4-3 - 2A-4 (L1)
    		Below 1 Ω
    P4-4 - 2D-4 (UL1)
    		Below 1 Ω
    P4-10 - Body ground
    		Below 1 Ω
    P4-3 or 2A-4 (L1) - Body ground
    		10 kΩ or higher
    P4-4 or 2D-4 (UL1) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) 

4.INSPECT FRONT DOOR LOCK ASSEMBLY (DRIVER SIDE (DOOR LOCK MOTOR, DOOR LOCK AND UNLOCK SWITCH))
B111989E01
B111990E01

  1. Apply battery voltage to the door lock and check 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:
    LHD:
    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
    RHD:
    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

  1. w/ Wireless door lock system:
    Measure the resistance of the position switch.

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



NG
REPLACE FRONT DOOR LOCK ASSEMBLY (DRIVER SIDE)
OK


5.INSPECT FRONT SEAT INNER BELT ASSEMBLY (DRIVER SIDE)
B085672E09

  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 (DRIVER SIDE)
OK


6.CHECK WIRE HARNESS (FRONT DOOR LOCK ASSEMBLY DRIVER SIDE - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) AND BODY GROUND)
B111991E02

  1. Disconnect the D6 door lock connectors.

  1. Disconnect the 2A, 2D and 2R junction block connector.

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

    Standard resistance:
    LHD:
    Tester Connection
    		Condition
    		Specified Condition
    D6-1 - 2R-27 (ACT-)
    		Always
    		Below 1 Ω
    D6-4 - 2R-28 (ACT+)
    		Always
    		Below 1 Ω
    D6-10 - 2D-4 (UL1)
    		Always
    		Below 1 Ω
    D6-9 - 2A-4 (L1)
    		Always
    		Below 1 Ω
    D6-7 - Body ground
    		Driver seat belt is not fastened
    		Below 1 Ω
    D6-1 or 2R-27 (ACT-) - Body ground
    		Always
    		10 kΩ or higher
    D6-4 or 2R-28 (ACT+) - Body ground
    		Always
    		10 kΩ or higher
    D6-10 or 2D-4 (UL1) - Body ground
    		Always
    		10 kΩ or higher
    D6-9 or 2A-4 (L1) - Body ground
    		Always
    		10 kΩ or higher
    RHD:
    Tester Connection
    		Condition
    		Specified Condition
    D6-1 - 2R-27 (ACT-)
    		Always
    		Below 1 Ω
    D6-4 - 2R-28 (ACT+)
    		Always
    		Below 1 Ω
    D6-5 - 2D-4 (UL1)
    		Always
    		Below 1 Ω
    D6-6 - 2A-4 (L1)
    		Always
    		Below 1 Ω
    D6-7 - 2D-7 (LSWD)*
    		Always
    		Below 1 Ω
    D6-8 - Body ground
    		Driver seat belt is not fastened
    		Below 1 Ω
    D6-1 or 2R-27 (ACT-) - Body ground
    		Always
    		10 kΩ or higher
    D6-4 or 2R-28 (ACT+) - Body ground
    		Always
    		10 kΩ or higher
    D6-5 or 2D-4 (UL1) - Body ground
    		Always
    		10 kΩ or higher
    D6-6 or 2A-4 (L1) - Body ground
    		Always
    		10 kΩ or higher
    D6-7 or 2D-7 (LSWD) - Body ground*
    		Always
    		10 k Ω or higher

    HINT:
    *: w/ Wireless door lock system



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) 

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

B111992E01

  1. Apply battery voltage to the door lock and check 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


8.CHECK WIRE HARNESS (DOOR LOCK ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) AND BODY GROUND)
B111993E01

  1. Disconnect the D6, D7, D8* or D9* door lock connector.

  1. Disconnect the 2K or 2R junction block connector.

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

    Standard resistance:
    LHD:
    Tester Connection
    		Specified Condition
    D6-4 - 2R-28 (ACT+)
    		Below 1 Ω
    D6-1 - 2R-27 (ACT-)
    		Below 1 Ω
    D7-4 - 2K-11 (ACT+)
    		Below 1 Ω
    D7-1 - 2K-10 (ACT-)
    		Below 1 Ω
    D8-4 - 2R-28 (ACT+)*
    		Below 1 Ω
    D8-1 - 2R-28 (ACT-)*
    		Below 1 Ω
    D9-4 - 2K-11 (ACT+)*
    		Below 1 Ω
    D9-1 - 2K-10 (ACT-)*
    		Below 1 Ω
    D6-4 or 2R-28 (ACT+) - Body ground
    		10 kΩ or higher
    D6-1 or 2R-27 (ACT-) - Body ground
    		10 kΩ or higher
    D7-4 or 2K-11 (ACT+) - Body ground
    		10 kΩ or higher
    D7-1 or 2K-10 (ACT-) - Body ground
    		10 kΩ or higher
    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
    RHD:
    Tester Connection
    		Specified Condition
    D6-4 - 2R-28 (ACT+)
    		Below 1 Ω
    D6-1 - 2R-27 (ACT-)
    		Below 1 Ω
    D7-4 - 2K-11 (ACT+)
    		Below 1 Ω
    D7-1 - 2K-10 (ACT-)
    		Below 1 Ω
    D8-4 - 2K-11 (ACT+)*
    		Below 1 Ω
    D8-1 - 2K-10 (ACT-)*
    		Below 1 Ω
    D9-4 - 2R-28 (ACT+)*
    		Below 1 Ω
    D9-1 - 2R-27 (ACT-)*
    		Below 1 Ω
    D6-4 or 2R-28 (ACT+) - Body ground
    		10 kΩ or higher
    D6-1 or 2R-27 (ACT-) - Body ground
    		10 kΩ or higher
    D7-4 or 2K-11 (ACT+) - Body ground
    		10 kΩ or higher
    D7-1 or 2K-10 (ACT-) - Body ground
    		10 kΩ or higher
    D8-4 or 2K-11 (ACT+) - Body ground*
    		10 kΩ or higher
    D8-1 or 2K-10 (ACT-) - Body ground*
    		10 kΩ or higher
    D9-4 or 2R-28 (ACT+) - Body ground*
    		10 kΩ or higher
    D9-1 or 2R-28 (ACT-) - Body ground*
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY 

9.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 fuses.

    Standard resistance:
    Below 1 Ω



NG
REPLACE FUSE
OK


10.CHECK WIRE HARNESS (INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) - BATTERY AND BODY GROUND)
B111994E01

  1. Disconnect the 2D, 2H and 2L junction block 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


11.CHECK WIRE HARNESS (POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY) AND BODY GROUND)
B112006E04

  1. Disconnect the P4 switch connector.

  1. Disconnect the 2A and 2D junction block connectors.

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

    Standard resistance:
    Double cab:
    Tester Connection
    		Specified Condition
    P4-5 - 2A-4 (L1)
    		Below 1 Ω
    P4-8 - 2D-4 (UL1)
    		Below 1 Ω
    P4-3 - Body ground
    		Below 1 Ω
    P4-5 or 2A-4 (L1) - Body ground
    		10 kΩ or higher
    P4-8 or 2D-4 (UL1) - Body ground
    		10 kΩ or higher
    LHD (Extra cab, Single cab):
    Tester Connection
    		Specified Condition
    P4-2 - 2A-4 (L1)
    		Below 1 Ω
    P4-5 - 2D-4 (UL1)
    		Below 1 Ω
    P4-1 - Body ground
    		Below 1 Ω
    P4-2 or 2A-4 (L1) - Body ground
    		10 kΩ or higher
    P4-5 or 2D-4 (UL1) - Body ground
    		10 kΩ or higher
    RHD (Extra cab, Single cab):
    Tester Connection
    		Specified Condition
    P4-3 - 2A-4 (L1)
    		Below 1 Ω
    P4-4 - 2D-4 (UL1)
    		Below 1 Ω
    P4-10 - Body ground
    		Below 1 Ω
    P4-3 or 2A-4 (L1) - Body ground
    		10 kΩ or higher
    P4-4 or 2D-4 (UL1) - Body ground
    		10 kΩ or higher



NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY (INTEGRATION RELAY)