Headlight Control Relay Circuit

HEADLIGHT CONTROL RELAY CIRCUIT



CIRCUIT DESCRIPTION
When the theft deterrent system is activated, it causes the Tr in the ECU to switch ON and OFF at approximately 0.2 sec. intervals. This switches the headlight control relay ON and OFF, thus flashing the headlights (See the wiring diagram below).

In this condition, if any of the following operations is done, the Tr in the ECU goes OFF aid the headlight control relay switches OFF, thus stopping the headlights flashing:

1. The front LH or RH door is unlocked with a key.
2. The ignition switch is turned to the ACC or ON position.
3. Approximately 1 minute elapses.

Headlight Control Relay Circuit:

WIRING DIAGRAM

Inspection Procedure / Headlight Control Relay Circuit:

INSPECTION PROCEDURE

HINT: The flow chart below is based on the premise that the headlights light up normally whenever the light control switch is operated. If headlight operation is not normal when the light control switch is operated, proceed to troubleshooting. Testing and Inspection