Hazard Switch

HAZARD SWITCH

Component Function Check


1. CHECK HAZARD SWITCH SIGNAL BY CONSULT

CONSULT DATA MONITOR
1.Turn ignition switch ON.
2.Select HAZARD SW of BCM (FLASHER) Data Monitor item.
3.While operating the hazard switch, check the monitor status.





Is the inspection result normal?
YES- Hazard switch circuit is normal.
NO- Refer to "Diagnosis Procedure" .


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" [1][2]Electrical Diagrams.

1. CHECK HAZARD SWITCH SIGNAL INPUT

1.Turn ignition switch OFF.
2.Disconnect hazard switch connector.
3.Turn ignition switch ON.
4.Check voltage between hazard switch harness connector and ground.





Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 2.

2. CHECK HAZARD SWITCH SIGNAL OPEN CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect BCM connector M17.
3.Check continuity between hazard harness connector and BCM harness connector.





Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace harness or connector.

3. CHECK HAZARD SWITCH SIGNAL SHORT CIRCUIT

Check continuity between hazard switch harness connector and ground.





Is the inspection result normal?
YES- Replace BCM. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness or connector.

4. CHECK HAZARD SWITCH GROUND OPEN CIRCUIT

Check continuity between hazard switch harness connector and ground.





Is the inspection result normal?
YES- Replace hazard switch. Refer to "Removal and Installation" Service and Repair.
NO- Repair or replace harness or connector.