What does code U02BF mean?

Q: What does code U02BF mean?

Lost Communication With Interior Lighting Control Module B. U02BF is a network communication code indicating that a control module on the vehicle's data bus has stopped receiving messages from the Interior Lighting Control Module B. The module that set the code detected a loss of expected periodic communication from the lighting module, not necessarily a failure of the lighting module itself.

DTC codes / U02xx · Lost communication with a control module / U02BF

U02BFLost Communication With Interior Lighting Control Module B

U02BF is a network communication code indicating that a control module on the vehicle's data bus has stopped receiving messages from the Interior Lighting Control Module B. The module that set the code detected a loss of expected periodic communication from the lighting module, not necessarily a failure of the lighting module itself.

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.