U0422moderate severityNetwork
Invalid Data Received from Body Control Module
on 2012 Audi A6 3.0L Supercharged V6 · AWD
What this code means
The data from the BCM is invalid, causing other modules to misinterpret body system states.
Symptoms
- Multiple body electronic glitches
- Lights behaving erratically
- Lock/unlock inconsistent
- Warning messages incorrect
Common causes
- BCM software corruption
- CAN bus noise
- BCM partial failure
- Water damage to BCM
- Bad BCM ground
Diagnostic steps
- Check BCM for stored codes
- Update BCM software
- Test CAN bus signal quality
- Inspect BCM for water damage
- Check BCM ground connections
Repair notes
Reprogram BCM. Check for water intrusion at BCM location. Inspect ground connections.
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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