Multiplex System: Notes

The dash switch is a combination of switches and a variable resistor controlled by a single knob and a wash button switch. There are 2 relays that control motor operation.

Parking relay (gearbox relay) located in the gearbox. Pulse relay (part of the timing circuit) located on the washer pump frame. Both relays must be energized to complete circuit to the wiper motor windings.

Both relays must be energized to complete circuit to the wiper motor windings.