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. (Refer to LAMPS/LIGHTING - EXTERIOR/MULTI-FUNCTION SWITCH - REMOVAL).

SWITCH DIAGNOSIS To test the switch:

Fig.22 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.

Multi-function Switch Continuity Test:

Multi-Function Switch Dimmer Control Resistance:

Fig.4 Combination Flasher Connector (A):

Fig.5 Multi-Function Switch Connector (B):

Fig.6 Windshield Wiper/Washer Switch Connector (C):

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.