Combination Switch: Testing and Inspection
To test the turn signal, headlamp beam select and optical horn portion of the multi-function switch:1. Remove the multi-function switch, refer to Electrical, Lamps/Lighting - Exterior, Multi-Function Switch, Removal, and Installation.
Multi-Function Switch Tests:
2. Using an ohmmeter check the resistance readings between multi-function switch pins. Refer to Wiring Diagrams for proper pin numbers and the MULTI-FUNCTION SWITCH TESTS table.