Test D: The Multi-Function Switch Does Not Operate Correctly

Test D: The Multi-function Switch Does Not Operate Correctly

Refer to Vehicle/Diagrams, Front Wipers and Washers for schematic and connector information.
Refer to Vehicle/Diagrams, Headlamps for schematic and connector information.
Refer to Vehicle/Diagrams, Turn Signal/Stop/Hazard Lamps for schematic and connector information.

Normal Operation
The multi-function switch controls the various components electrically. The headlamp switch sends constant voltage to the headlamps when placed in the ON position, while the flash-to-pass is a momentary switch used to send voltage to the headlamp high beams only. The headlamp high beam/low beam switch sends voltage to the low or high beam headlamps while the headlamps are on. The turn signal switch portion of the multi-function switch operates the left and right turn signals. The windshield wiper switch function uses a ground signal to activate the various wiper modes and the wiper/washer.

Possible Causes
^ Multi-function switch

D1-D4: