Theft Deterrent System Ecu Power Source Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT FUSE (ECU-B, DCC, DOOR)

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

THEFT DETERRENT SYSTEM - ECU Power Source Circuit


DESCRIPTION

This circuit provides power to operate the theft warning ECU.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Theft Deterrent.Theft Deterrent System.Theft Deterrent System Ecu Power Source Circuit


INSPECTION PROCEDURE

1.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


2.CHECK WIRE HARNESS (THEFT WARNING ECU - BATTERY AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Theft Deterrent.Theft Deterrent System.Theft Deterrent System Ecu Power Source Circuit

  1. Disconnect the T16 ECU connector.

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

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

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    T16-1 (E) - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

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