Diesel Data: Automotive Repair

Turn Signal Switch: Description and Operation

SYSTEM OPERATION

Multi Function Switch:




The multi-function switch assembly is mounted to the left side of the steering column. This switch contains circuitry for the following functions:
- Turn signals
- Hazard warning
- Headlamp beam selection
- Headlamp optical horn
- Windshield wipers
- Windshield washers.

The information contained addresses only the switch functions for the turn signal and hazard warning circuits. However, the multi-function switch cannot be repaired. If any function of the switch is faulty, the entire switch assembly must be replaced.