U0202moderate severityNetwork
Lost Communication with Wiper Control Module
on 2003 Subaru Legacy 3.0L H6 · AWD
What this code 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
Repair notes
Check fuses and wiper motor. Module may be integrated into wiper motor assembly.
Other Network codes on this vehicle
U0001
High Speed CAN Communication Bus
U0002
High Speed CAN Communication Bus Performance
U0003
High Speed CAN Communication Bus (+) Open
U0004
High Speed CAN Communication Bus (+) Low
U0005
High Speed CAN Communication Bus (+) High
U0006
High Speed CAN Communication Bus (-) Open
U0007
High Speed CAN Communication Bus (-) Low
U0008
High Speed CAN Communication Bus (-) High
U0009
High Speed CAN Communication Bus Shorted Together
U0010
Medium Speed CAN Communication Bus