FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Wiper Not Working at All

Test 1 - 5:




Test 6 - 11:




Test 12 - 15:




Test 16 - 21:




Test 22 - 26:




Test 27 - 31:




Test 32 - 36:




SYMPTOM
WIPER NOT WORKING AT ALL

POSSIBLE CAUSES
- SCI/PCI comm failure- bus operational
- Open B (+) circuit- battery/wiper fuse
- Open ignition switch output circuit
- Intermittent wiper relay
- Intermittent wiper relay/RLY coil
- Fused B (+) circuit short/GND
- HI/LO wiper relay HI speed output circuit- short/GND
- Open fused B(+) circuit-between fuse/intermittent relay
- Open ground circuit
- Open intermittent wiper relay control circuit
- Open wiper relay common circuit between intermittent-HI/LO relay
- Wiper relay common CKT short/GND
- HI/LO wiper relay LO speed output circuit- short/GND
- Open HI/LO wiper LO speed output circuit between H/L RLY
- open wiper switch signal circuit between SW/BCM
- Wiper switch signal CKT short/ground
- Fused ignition switch output CKT short/GND
- Open fused ignition switch output circuit
- Open fused ignition switch output circuit- switch/fuse #15
- HI/LO wiper relay- wiper motor
- HI/LO wiper relay-relay coil
- Multi-function switch/BCM
- Multi-function switch/fused ignition switch output CKT
- Wiper motor/ground ckt
- Wiper motor/H/L relay default
- BCM default
- BCM/wiper motor operate
- BCM/wiper motor actuation