Error code
OBD2 U0041
OBD2U0041
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Vehicle Communication Bus B (High).
Severity
highDriving may be possible but could cause further damage to the vehicle's electronics.
Summary
U0041 indicates that the voltage on Vehicle Area Network (VAN) data bus B is too high, which can affect communication between vehicle modules.
Common Causes
- High voltage on VAN data bus B
- Faulty wiring or connectors in VAN data bus B
Fixes
FAQ
What should I do if my car has U0041?
Consult a professional mechanic to diagnose and repair the high voltage issue on VAN data bus B.
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)