Error code
OBD2 U0051
OBD2U0051
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Vehicle Communication Bus C (Open).
Severity
severeDriving may be unsafe due to potential loss of critical information and system failures.
Summary
U0051 indicates an open circuit in the Vehicle Area Network (VAN) data bus C, which is part of the communication system between vehicle modules.
Common Causes
- Open circuit in VAN data bus C
- Faulty connectors or wiring harness
Fixes
FAQ
What does U0051 mean?
U0051 indicates an issue with the VAN data bus C, specifically an open circuit that disrupts communication between vehicle modules.
How do I fix U0051?
Fixing U0051 typically involves identifying and repairing any faulty wiring or connectors in the VAN data bus C. Professional diagnosis is recommended due to the complexity of this issue.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
More OBD2 codes
- U0001High Speed CAN Communication Bus
- U0002High Speed CAN Communication Bus (Performance)
- U0003High Speed CAN Communication Bus (Open)
- U0004High Speed CAN Communication Bus (Low)
- U0005High Speed CAN Communication Bus (High)
- U0006High Speed CAN Communication Bus (Open)
- U0007High Speed CAN Communication Bus (Low)
- U0008High Speed CAN Communication Bus (High)
- U0009High Speed CAN Communication Bus (shorted to Bus)
- U0010Medium Speed CAN Communication Bus
- U0011Medium Speed CAN Communication Bus (Performance)
- U0012Medium Speed CAN Communication Bus (Open)