00003high severityNetwork
Control Module - Defective
on 1998 Audi A6 2.8L V6 · AWD
What this code means
The control module has an internal fault and is not working properly. Similar to OBD U0100/P0600 depending on the affected module.
Symptoms
- Warning lights on dash
- Module functions not working
- No communication with scan tool
Common causes
- Internal module failure
- Water damage or corrosion
- Power or ground fault
- Firmware corruption
Diagnostic steps
- Scan all modules for fault codes
- Check module power and ground
- Inspect connectors for corrosion
- Replace module if confirmed faulty
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Other Network codes on this vehicle
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
U0002
High Speed CAN Communication Bus Performance