What does code U0277 mean?

Q: What does code U0277 mean?

Lost Communication With Seat Control Module K. U0277 is a generic network communication code indicating that a primary control module has lost the expected data messages from the Seat Control Module K over the vehicle's Controller Area Network (CAN) bus. The detecting module sets this code when it stops receiving the periodic status frames that the seat module normally broadcasts, which can be caused by a fault in the seat module itself, its power or ground supply, or the communication wiring between them.

DTC codes / U02xx · Lost communication with a control module / U0277

U0277Lost Communication With Seat Control Module K

U0277 is a generic network communication code indicating that a primary control module has lost the expected data messages from the Seat Control Module K over the vehicle's Controller Area Network (CAN) bus. The detecting module sets this code when it stops receiving the periodic status frames that the seat module normally broadcasts, which can be caused by a fault in the seat module itself, its power or ground supply, or the communication wiring between them.

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.