Component Circuits Diagnosis

BULBS
Visually inspect the bulb. Check the resistance through the bulb.

Replace as needed.

HEADLAMP SWITCH
Refer to Turn Signals/Combination Switch for Lever Combination Switch (LCS) testing. Combination Switch

Repair/replace as needed.

I/P DIMMER
Perform the following checks at the instrument panel dimmer harness connector, with the instrument panel dimmer disconnected.
Pin A Continuity to ground
Pin B Battery voltage with park lights On
Pin C Battery voltage with park lights On

Repair/replace as needed.

If all other wiring, components, and all of the above checks are ok, replace I/P dimmer.