U0104moderate severityNetwork
Lost Communication with Cruise Control Module
on 2000 Audi A4 2.8L V6 · 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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00003
Control Module - Defective
01304
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01312
Powertrain Data Bus - Defective
01314
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01315
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01316
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01317
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01318
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01321
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U0001
High Speed CAN Communication Bus