Hazard Warning Switch: Testing and Inspection

Combination Flasher Diagnosis:

The multi-function switch contains electrical circuitry for turn signal, hazard warning, headlamp beam select, headlamp optical horn, windshield wiper, pulse wipe, and windshield washer switching. Refer to Windshield Wiper and Washer Systems for Wiper and Washer functions. This integrated switch assembly is mounted to the left hand side of the steering column. Should any function of the switch fail, the entire switch assembly must be replaced. Refer to Combination Flasher Diagnosis table.

To test the switch, the switch must first be removed. Refer to Multi-function Switch Replacement procedures.

Turn Signal And Hazard Switch Connector Pin Call-Out:

Turn Signal And Hazard Switch Continuity:

Beam Select Switch Connector Pin Call-Out:

Beam Select Switch Continuity:

Using an ohmmeter, test for continuity (no resistance) between the terminals of the switch as shown in the Turn Signal and Hazard Switch Continuity and Beam Select Switch Continuity tables.