RAM 3500 Truck 2WD V10-8.0L VIN W MDC (1999)
Windshield Washer Switch: Description and Operation
Multi-Function Switch
SYSTEM OPERATION
The windshield wiper and washer switches are contained in the multi-function switch assembly. The multi-function switch assembly is secured to
the left side of the steering column. A knob on the end of the multi-function switch stalk is rotated to select the desired wiper speed or intermittent
wipe delay, or depressed toward the steering column to activate the washer system.
The multi-function switch contains circuitry for the following functions:
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Turn signals
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Hazard warning
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Headlamp beam selection A
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Headlamp optical horn
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Windshield wipers
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Windshield washers.
However, the multi-function switch cannot be repaired. If any function of the multi-function switch is faulty, or if the switch is damaged, the entire
switch assembly must be replaced.