Headlights - Automatic: Wiring Lexus SC I

Integration Relay Circuit (At Harness)

Turn ignition off. Disconnect harness connector from integration relay. Remove integration relay. Check for continuity between chassis ground and following integration relay harness connector terminals. (Схема №3) If continuity is as specified, perform circuit voltage test. See VOLTAGE TESTS.

1. Terminal No. 1 - With passenger's door locked, there should be no continuity. With passenger's door unlocked, there should be continuity.
2. Terminal No. 2 - With driver's door locked, there should be no continuity. With driver's door unlocked, there should be continuity.
3. Terminal No. 3 - With headlight switch in OFF position, there should be no continuity. With headlight switch in TAIL or HEAD position, there should be continuity.
4. Terminal No. 6 - With headlight switch in TAIL or OFF position, there should be no continuity. With headlight switch in HEAD position, there should be continuity.