Theft Deterrent System Driver Side Door Courtesy Switch Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK COMBINATION METER

CHECK WIRE HARNESS (COMBINATION METER - THEFT WARNING ECU)

INSPECT FRONT DOOR COURTESY LIGHT SWITCH (FOR DRIVER SIDE)

CHECK WIRE HARNESS (COMBINATION METER - FRONT DOOR COURTESY LIGHT SWITCH (FOR DRIVER SIDE))

THEFT DETERRENT SYSTEM - Driver Side Door Courtesy Switch Circuit


DESCRIPTION

The theft warning ECU detects the condition of the front door courtesy light switch (driver side).

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Theft Deterrent.Theft Deterrent System.Theft Deterrent System Driver Side Door Courtesy Switch Circuit


INSPECTION PROCEDURE

1.CHECK COMBINATION METER

  1. When the driver side door is opened / closed, check that the indicator in the combination meter operates normally.

    OK:
    Indicator operates normally.


NG
Go to step 3
OK


2.CHECK WIRE HARNESS (COMBINATION METER - THEFT WARNING ECU)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Theft Deterrent.Theft Deterrent System.Theft Deterrent System Driver Side Door Courtesy Switch Circuit

  1. Disconnect the C10 meter connector.

  1. Disconnect the T16 ECU connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    C10-17 - T16-7 (CTY)
    		Below 1 Ω

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

    Standard voltage:
    Tester Connection
    		Specified Condition
    C10-17 - Body ground
    		10 to 14 V


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE

3.INSPECT FRONT DOOR COURTESY LIGHT SWITCH (FOR DRIVER SIDE)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Theft Deterrent.Theft Deterrent System.Theft Deterrent System Driver Side Door Courtesy Switch Circuit

  1. Measure the resistance of the switch.

    Standard resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    1 - Body ground
    		Not pushed (ON)
    		Below 1 Ω
    1 - Body ground
    		Pushed (OFF)
    		10 kΩ or higher


NG
REPLACE FRONT DOOR COURTESY LIGHT SWITCH
OK


4.CHECK WIRE HARNESS (COMBINATION METER - FRONT DOOR COURTESY LIGHT SWITCH (FOR DRIVER SIDE))
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Theft Deterrent.Theft Deterrent System.Theft Deterrent System Driver Side Door Courtesy Switch Circuit

  1. Disconnect the C10 meter connector.

  1. Disconnect the D4 switch connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    C10-16 - D4-1
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE COMBINATION METER