U0106high severityNetwork
Lost Communication with Glow Plug Control Module
on 2010 Audi A3 2.0L TDI I4 · FWD
What this code means
Cannot communicate with the glow plug control module on diesel vehicles.
Symptoms
- Hard cold starting
- Glow plug light stays on
- Extended cranking
- White exhaust smoke on cold start
Common causes
- Glow plug module failure
- CAN bus wiring issue
- Fuse blown
- Module connector corrosion
- Glow plug module water damage
Diagnostic steps
- Check glow plug module fuse
- Test module power and ground
- Inspect module connector
- Check CAN bus wiring
- Test glow plug module directly
Repair notes
Check fuses and power supply. Glow plug modules often fail from heat exposure.
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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