U0178low severityNetwork
Lost Communication with Rain Sensor Module
on 2010 Cadillac SRX 3.0L V6 · AWD
What this code means
Cannot communicate with the rain-sensing windshield wiper module.
Symptoms
- Auto wipers not working
- Rain sense feature disabled
- Wipers only work in manual mode
Common causes
- Rain sensor failure
- Wiring issue
- Sensor not bonded to windshield
- Fuse blown
- Windshield replacement error
Diagnostic steps
- Check rain sensor power
- Test wiring
- Verify sensor bonded to windshield properly
- Check fuse
- Inspect sensor gel pad
Repair notes
Check sensor mounting gel pad on windshield. Must be rebonded during windshield replacement.
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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