Error code
OBD2 U0014
OBD2U0014
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Medium Speed CAN Communication Bus (High).
Severity
highDriving may be possible but could lead to further damage and reduced vehicle functionality.
Summary
U0014 indicates an issue with the medium speed CAN data bus, specifically that the voltage is too high on the (+) side of this communication network.
Common Causes
- CAN bus (+) voltage is abnormally high
- Faulty or damaged wiring in the CAN system
Fixes
FAQ
What does U0014 mean?
U0014 indicates a problem with the medium speed CAN data bus, specifically high voltage on the (+) side.
How serious is this issue?
This is a high severity issue that can affect multiple systems in your vehicle. It's recommended to address it promptly to avoid further damage.
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)