Hazard Warning Lamp Does Not Operate But Turn Signal Lamp Operates

TURN SIGNAL AND HAZARD WARNING LAMPS

Hazard Warning Lamp Does Not Operate But Turn Signal Lamp Operates


1. CHECK HAZARD SWITCH INPUT SIGNAL

With CONSULT
1.Select "BCM" on CONSULT. Select "FLASHER" on "SELECT TEST ITEM" screen.
2.Select "DATA MONITOR" on "SELECT DIAG MODE" screen. Make sure that "HAZARD SW" turns ON-OFF linked with operation of hazard switch.





Without CONSULT





Check voltage between BCM harness connector and ground.





OK or NG
OK- Replace BCM. Service and Repair .
NG- GO TO 2.

2. CHECK HAZARD SWITCH CIRCUIT






1.Turn ignition switch OFF.
2.Disconnect BCM connector and hazard switch connector.
3.Check continuity BCM harness connector M18 (A) and hazard switch harness connector M55 (B).





OK or NG
OK- GO TO 3.
NG- Repair harness or connector.

3. CHECK GROUND CIRCUIT






Check continuity between hazard switch harness connector M55 terminal 1 and ground.





OK or NG
OK- GO TO 4.
NG- Repair harness or connector.

4. CHECK HAZARD SWITCH






1.Disconnect hazard switch connector.
2.Check continuity hazard switch terminals.





OK or NG
OK- Replace BCM if hazard warning lamps do not operate after setting the connector again. Service and Repair .
NG- Replace hazard switch.