Taillight Relay Circuit

TAILLIGHT RELAY CIRCUIT

CIRCUIT DESCRIPTION

TAILLIGHT relay will be "ON" by operating the light control switch. The transistor which activates the tail light relay has two sorts: one is activated by the light control switch for fail safe and the other is activated by CPU. When the theft deterrent system is activated, it causes the transistor in the ECU to switch ON and OFF at approximately 0.4 sec. intervals. This switches the TAILLIGHT relay ON and OFF, and thus flashing the taillights.

In this condition, if any of the following operations is done, the transistor in the ECU goes OFF and the TAILLIGHT relay switches OFF, and thus stopping the taillights flashing:

1. Unlock the front LH or RH door with a key.
2. Turn the ignition switch to ACC or ON position.
3. Unlock the doors with the wireless door lock control system.
4. Wait for approximately 60 seconds.

Wiring Diagram:

Step 1 - 3:

INSPECTION PROCEDURE

HINT: When using the hand-held tester, start the inspection from step 1 and when not using the hand-held tester, start from step 2.