DESCRIPTION & OPERATION
All wiper/washer functions are controlled by the multifunction switch and Generic Electronic Module (GEM) located in the instrument panel, between radio and steering column. GEM controls wiper/washer functions through 3 relays. Two relays control wipers and the third relay controls washers. One wiper control relay switches between high (HI) and low (LO) speeds. The other wiper relay switches between run and a dynamic brake (armature short circuit) and is used in interval (INT) mode of operation. Interval delay is controlled by control knob on end of multifunction switch lever. Interval speed is also vehicle speed dependent. Interval delay times decrease as vehicle speed increases.