Switch Diagnosis Test

Fig.5 Battery Negative Cable Remove/Install:

To test the switch:
1. Disconnect and isolate the battery negative cable.
2. Remove the upper and lower steering column shrouds. Refer to Instrument Panel Systems, Removal and Installation, Steering Column Shrouds.
3. Disconnect the switch connector.

Multi-Function Switch Continuity Test:

Multi-Function Switch Dimmer Control Resistence:

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.