U0127high severityNetwork
Lost Communication with Parking Brake Control Module
on 2016 Audi A6 3.0L Supercharged V6 · AWD
What this code means
Cannot communicate with the electronic parking brake module.
Symptoms
- Parking brake warning light
- Electronic parking brake inoperative
- Brake warning message
- Cannot release parking brake
- Hill hold not working
Common causes
- EPB module failure
- CAN bus wiring
- Module power loss
- Fuse blown
- EPB actuator failure
Diagnostic steps
- Check EPB module fuse
- Test module power and ground
- Check CAN wiring
- Try manual EPB release procedure
- Test EPB actuator motors
Repair notes
If parking brake is stuck engaged, use manual release procedure first. Check fuses.
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Other Network codes on this vehicle
00003
Control Module - Defective
01304
Radio - No Communication
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