U0104moderate severityNetwork
Lost Communication with Cruise Control Module
on 2019 Audi A6 3.0L V6 TFSI · AWD
What this code means
Cannot communicate with the cruise control module.
Symptoms
- Cruise control inoperative
- Cruise light not illuminating
- Adaptive cruise not available
- Speed not maintained
Common causes
- Cruise control module failure
- CAN bus wiring issue
- Clockspring failure
- Fuse blown
- Steering wheel button failure
Diagnostic steps
- Check cruise control fuse
- Test module power and ground
- Check clockspring continuity
- Inspect steering wheel button connections
- Check CAN wiring to module
Repair notes
Check clockspring (common failure) and fuses. Test steering wheel controls.
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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