U0063high severityNetwork
Control Module Communication Bus F Shorted To Ground
on 2009 Volkswagen CC 3.6L V6 · AWD
What this code means
The F communication bus wiring is shorted to ground, cutting off data between modules. This can cause multiple modules to lose communication with each other.
Symptoms
- Warning lights on dash
- Multiple modules not responding
- Features not working
Common causes
- Bus F wiring shorted to ground
- Chafed or damaged harness
- Corroded connector
- Faulty control module
Diagnostic steps
- Scan all modules for U-codes
- Inspect bus F wiring for shorts to ground
- Measure bus voltage and resistance
- Repair wiring or replace faulty module
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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