U0204low severityNetwork
Lost Communication with Mirror Control Module
on 2010 Audi R8 5.2L V10 (Gen 1, 525hp) ยท AWD
What this code means
Cannot communicate with the power mirror or auto-dimming mirror control module.
Symptoms
- Mirror adjustment not working
- Auto-dimming not functioning
- Mirror memory not working
- Auto-fold mirrors disabled
Common causes
- Mirror module failure
- Wiring issue
- Module power loss
- Fuse blown
- Mirror motor failure
Diagnostic steps
- Check mirror module fuse
- Test power and ground
- Inspect door jamb wiring
- Test mirror motors
- Check mirror switch
Repair notes
Check door jamb wiring. Mirror wiring passes through flex point and commonly breaks.
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Other Network codes on this vehicle
00003
Control Module - Defective
01304
Radio - No Communication
01312
Powertrain Data Bus - Defective
01314
Engine Control Module (ECM) - no communications
01315
Transmission Control Module (TCM) - No Communication
01316
ABS Control Module - No Communication
01317
Instrument Cluster Control Module (J285) - No Communication
01318
Immobilizer Control Module - No Communication
01321
Airbag Control Module - No Communication
U0001
High Speed CAN Communication Bus