U0301high severityNetwork
Software Incompatibility with ECM/PCM
on 2016 Audi A6 3.0L Supercharged V6 · AWD
What this code means
The data protocol or software version from the ECM/PCM is incompatible with other vehicle modules.
Symptoms
- Check Engine Light
- Transmission shift issues
- Other modules reporting ECM data errors
- Systems not responding to ECM commands
Common causes
- ECM software version mismatch
- ECM reprogramming incomplete
- Wrong ECM software loaded
- ECM hardware revision mismatch
Diagnostic steps
- Check ECM software version
- Compare to required version
- Reprogram ECM with correct software
- Check for TSBs
- Verify ECM hardware part number matches software
Repair notes
Reprogram ECM/PCM with correct calibration. Verify correct part number and software version.
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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