Error code
OBD2 U0008
OBD2U0008
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
High Speed CAN Communication Bus (High).
Severity
highDriving may be possible but could lead to further damage or safety issues.
Summary
U0008 indicates an issue with the high-speed CAN (Controller Area Network) data bus, specifically related to voltage being too high. This problem affects communication between vehicle modules.
Common Causes
- High voltage on the high-speed CAN bus
- Faulty CAN transceiver module
Fixes
FAQ
What does U0008 mean?
U0008 indicates a high voltage issue on the high-speed CAN bus, which is critical for communication between vehicle modules.
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)
- 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)
- U0013Medium Speed CAN Communication Bus (Low)