What does code U0005 mean?

Q: What does code U0005 mean?

High Speed CAN Communication Bus (+) High. U0005 means the modules on the high-speed Controller Area Network (CAN) bus have detected a short to voltage on the CAN positive (CAN+) wire, so the bus can no longer carry reliable data between them. The computer is reporting that the CAN+ line is sitting at an abnormally high voltage instead of toggling between its normal recessive and dominant levels.

DTC codes / U00xx · Network wiring and bus faults / U0005

U0005High Speed CAN Communication Bus (+) High

U0005 means the modules on the high-speed Controller Area Network (CAN) bus have detected a short to voltage on the CAN positive (CAN+) wire, so the bus can no longer carry reliable data between them. The computer is reporting that the CAN+ line is sitting at an abnormally high voltage instead of toggling between its normal recessive and dominant levels.

SystemNetwork

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaNetwork wiring and bus faults

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.