GS 460 V8-4.6L (1UR-FSE) (2008)
Headlamp Relay: Testing and Inspection
Headlight Relay Circuit
LIGHTING: LIGHTING SYSTEM: Headlight Relay Circuit
Headlight Relay Circuit
DESCRIPTION
The headlight relay is turned ON by operating the headlight switch.
When the theft deterrent system is activated, it causes the ECU to turn the headlight relay on and off repeatedly at approximately 0.25 second intervals to
flash the headlights.
In this condition, if any of the following operations is performed, the ECU to turns the headlight relay off to stop the headlight from flashing:
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Unlock the driver door with a key.
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Turn the engine switch on (ACC) or on (IG).
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Unlock the doors with the wireless door lock control system.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. PERFORM ACTIVE TEST USING TECHSTREAM
(a) Select the ACTIVE TEST, use the Techstream to generate a control command, and then check that the headlight assembly (low)