What does code U0254 mean?

Q: What does code U0254 mean?

Lost Communication With Remote Start Module. U0254 is a generic network communication code indicating that the module responsible for remote start functions has stopped reporting on the vehicle's controller area network (CAN) bus. The computer that set the code, typically the body control module (BCM) or gateway module, expected regular status messages from the remote start module but detected a loss of communication for a calibrated time period.

DTC codes / U02xx · Lost communication with a control module / U0254

U0254Lost Communication With Remote Start Module

U0254 is a generic network communication code indicating that the module responsible for remote start functions has stopped reporting on the vehicle's controller area network (CAN) bus. The computer that set the code, typically the body control module (BCM) or gateway module, expected regular status messages from the remote start module but detected a loss of communication for a calibrated time period.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaLost communication with a control module

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