Regarding Wiring Diagram information, refer to EXL "Wiring Diagram".
1.CHECK TURN SIGNAL LAMP BULB
Check the applicable lamp bulb to be sure the proper bulb standard is in use and the bulb is not open.
Is the bulb OK?
YES >> GO TO 2.
NO >> Replace the bulb.
2.CHECK TURN SIGNAL LAMP OUTPUT VOLTAGE
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector and the rear combination lamp connector.
3. Turn the ignition switch ON.
4. With turn signal switch operating, check the voltage between the front combination lamp harness connector and ground.
5. With turn signal switch operating, check the voltage between the rear combination lamp harness connector and ground.
Are the inspection results normal?
YES >> GO TO 5.
NO >> GO TO 3.
3.CHECK TURN SIGNAL LAMP CIRCUIT FOR OPEN
1. Turn the ignition switch OFF.
2. Disconnect BCM connector.
3. Check continuity between the BCM harness connector and the front combination lamp connector.
4. Check continuity between the BCM harness connector and the rear combination lamp connector.
Are the inspection results normal?
YES >> GO TO 4.
NO >> Repair or replace the harness or connector.
4.CHECK TURN SIGNAL LAMP SHORT CIRCUIT
Check continuity between the BCM harness connector and ground.
Is the inspection results normal?
YES >> Repair or replace the harness or connector.
NO >> Replace BCM. Refer to BCS "Removal and Installation" (with Intelligent Key) or BCS "Removal and Installation" (without Intelligent Key).
5.CHECK TURN SIGNAL LAMP GROUND CIRCUIT
1. Check continuity between the front combination lamp harness connector and ground.
2. Check continuity between the rear combination lamp harness connector and ground.
Are the inspection results normal?
YES >> Replace the malfunctioning lamp.
NO >> Repair or replace the harness or connector.