Diagnostic Aids
- A short to ground in the following circuits will open the WPR fuse:
- Ignition 1 voltage
- Windshield wiper motor relay coil supply voltage
- Windshield wiper switch high signal
- Windshield wiper motor low speed control
- Windshield wiper motor high speed control
- A short to B+ on any of the wiper/washer switch signal circuits will open the ground trace in the wiper switch.