U0202
NetworkModule Communicationmoderate severityLost Communication with Wiper Control Module
What U0202 Means
Cannot communicate with the windshield wiper control module.
Symptoms
- Wipers not working
- Wiper speed not changing
- Intermittent wiper mode not working
- Rear wiper inoperative
Common Causes
- Wiper module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- Wiper motor failure
Diagnostic Steps
- Check wiper module fuse
- Test power and ground
- Check CAN wiring
- Test wiper motor directly
- Inspect wiper switch
Where to start: Check fuses and wiper motor. Module may be integrated into wiper motor assembly.
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