Combination Switch: Testing and Inspection

Turn Signal And Hazard Warning Flasher Diagnosis (Part 1 Of 2):

Turn Signal And Hazard Warning Flasher Diagnosis (Part 2 Of 2):

FLASHER DIAGNOSIS
Should any function of the multi-function switch fail, the entire switch assembly must be replaced.

SWITCH DIAGNOSIS To test the switch:

Fig.21 Disconnect And Isolate Battery Negative Cable:

1. Disconnect and isolate the battery negative cable.
2. Remove the upper and lower steering column shrouds.
3. Disconnect the switch connector.

Fig.18 Combination Flasher Connector(A):

Fig.19 Multi-Function Switch Connector (B):

Fig.20 Windshield Wiper/Washer Switch Connector (C):

Multi-Function Switch Continuity Test:

Multi-Function Switch Dimmer Control Resistance:

Using an ohmmeter, test for continuity (no resistance) between the terminals of the switch as shown in the Multi-Function Switch Continuity Test table for diagnosis. Refer to,, and for connector terminal locations.