Wireless Door Lock Control System (For Built-In Type Door Control Receiver) Only Wireless Control Function Is Inoperative


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS

CHECK THAT TRANSMITTER LED ILLUMINATES

REPLACE TRANSMITTER BATTERY

CHECK WIRELESS DOOR LOCK CONTROL FUNCTION (STANDARD OPERATION FUNCTION)

INSPECT FUSE (ECU-B, DCC, DOOR)

INSPECT UNLOCK WARNING SWITCH ASSEMBLY

CHECK WIRE HARNESS (UNLOCK WARNING SWITCH - THEFT WARNING ECU AND BODY GROUND)

REGISTER RECOGNITION CODE

CHECK WIRE HARNESS (THEFT WARNING ECU - INTEGRATION RELAY)

CHECK WIRE HARNESS (THEFT WARNING ECU - BATTERY AND BODY GROUND)

WIRELESS DOOR LOCK CONTROL SYSTEM (for Built-in Type Door Control Receiver) - Only Wireless Control Function is Inoperative


DESCRIPTION

The theft warning ECU receives a signal from the transmitter. The theft warning ECU then controls all doors by sending all of the following: 1) lock / unlock signals to each door, 2) hazard flasher relay signals to the turn signal flasher relay (hazard warning lights), 3) security horn signals to the security horn*.
HINT:
*: The security horn applies only if the wireless answer-back function has been customized so that the hazard warning lights flash and the security horn sounds.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Wireless Door Lock Control System (For Built-In Type Door Control Receiver).Wireless Door Lock Control System (For Built-In Type Door Control Receiver) Only Wireless Control Function Is Inoperative


INSPECTION PROCEDURE

1.CHECK WIRELESS DOOR LOCK CONTROL FUNCTIONS
OK:
Each function of wireless door lock control system operates normally using transmitter switches (Toyota Fortuner RM000000Z4Y00AX.html).


OK
END
NG


2.CHECK THAT TRANSMITTER LED ILLUMINATES

  1. Check that the transmitter's LED illuminates 3 times when the switch is pressed 3 times.

    OK:
    Transmitter's LED illuminates 3 times when switch is pressed 3 times.


OK
Go to step 4
NG


3.REPLACE TRANSMITTER BATTERY

  1. After replacing the transmitter battery (Toyota Fortuner RM0000010W9004X.html), check that the doors can be locked and unlocked using the transmitter switches.

    OK:
    Doors can be locked and unlocked with transmitter switches (Toyota Fortuner RM000000Z4Y00AX.html).


NG
REPLACE DOOR CONTROL TRANSMITTER MODULE
OK

END (TRANSMITTER BATTERY IS DEFECTIVE)

4.CHECK WIRELESS DOOR LOCK CONTROL FUNCTION (STANDARD OPERATION FUNCTION)
HINT:
Use the following standardized test procedure to check the transmitter again.

  1. Hold the transmitter approximately 1 m (3.28 ft.) from the driver side door outside handle. The transmitter must be parallel to the ground and perpendicular to the side of the vehicle.

  1. Press and hold either the LOCK or UNLOCK transmitter switch for 1 second, and check that the doors lock or unlock, respectively.

    OK:
    Doors can be locked and unlocked with transmitter switches (Toyota Fortuner RM000000Z4Y00AX.html).


OK
END
NG


5.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


6.INSPECT UNLOCK WARNING SWITCH ASSEMBLY


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Wireless Door Lock Control System (For Built-In Type Door Control Receiver).Wireless Door Lock Control System (For Built-In Type Door Control Receiver) Only Wireless Control Function Is Inoperative

  1. Remove the switch.

  1. Measure the resistance of the switch.

    Standard resistance:
    Tester Connection
    		 Condition
    		Specified Condition
    1 - 2
    		Not pushed
    		10 kΩ or higher
    Pushed
    		Below 1 Ω


NG
REPLACE UNLOCK WARNING SWITCH ASSEMBLY
OK


7.CHECK WIRE HARNESS (UNLOCK WARNING SWITCH - THEFT WARNING ECU AND BODY GROUND)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Wireless Door Lock Control System (For Built-In Type Door Control Receiver).Wireless Door Lock Control System (For Built-In Type Door Control Receiver) Only Wireless Control Function Is Inoperative

  1. Disconnect the U1 switch connector.

  1. Disconnect the T16 ECU connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    U1-1 - T16-5 (KSW)
    		Below 1 Ω
    U1-2 - Body ground


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


8.REGISTER RECOGNITION CODE

  1. Check that the system can be switched to rewrite mode or add mode, and that a recognition code can be registered.

    OK:
    Recognition code can be registered.


NG
END
OK


9.CHECK WIRE HARNESS (THEFT WARNING ECU - INTEGRATION RELAY)


  1. Disconnect the T16 ECU connector.


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Wireless Door Lock Control System (For Built-In Type Door Control Receiver).Wireless Door Lock Control System (For Built-In Type Door Control Receiver) Only Wireless Control Function Is Inoperative

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

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    T16-21 (L2) - 2A-4 (L1)
    		Below 1 Ω
    T16-20 (UL3) - 2D-4 (UL1)


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


10.CHECK WIRE HARNESS (THEFT WARNING ECU - BATTERY AND BODY GROUND)


    Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Door Lock.Wireless Door Lock Control System (For Built-In Type Door Control Receiver).Wireless Door Lock Control System (For Built-In Type Door Control Receiver) Only Wireless Control Function Is Inoperative

  1. Disconnect the T16 ECU connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    T16-1 (E) - Body ground
    		Below 1 Ω
    Standard voltage:
    Tester Connection
    		Specified Condition
    T16-3 (+B1) - Body ground
    		10 to 14 V
    T16-12 (+B2) - Body ground


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE THEFT WARNING ECU