Test E: The Rear Window Wiper Stays On Continuously
PINPOINT TEST E: THE REAR WINDOW WIPER STAYS ON CONTINUOUSLYE1-E4:
E4-E6:
Normal Operation
With the ignition switch in the START or RUN position, the wiper/washer switch receives voltage from the central junction box (CJB) through circuit 15-KA19 (GN/OG). When the rear wiper function is selected, the wiper/washer switch sends a voltage signal to the generic electronic module (GEM) through circuit 32-KA35 (WH/RD). The GEM provides a ground signal to the rear wiper relay coil through circuit 91S-KA29 (BK/YE). The relay energizes and provides voltage to the rear window wiper motor through circuit 32-KA28 (WH/RD). When the rear wiper switch is turned off, the rear window wiper motor continues to receive voltage through circuit 15-KA28 (GN/BU) until the wiper motor completes its cycle and the internal run/park switch opens the circuit.
Possible Causes
- circuit 91S-KA29 (BK/YE) short to ground
- rear window wiper motor
- rear wiper relay
- wiper/washer switch
- CJB
- GEM