What does code U0246 mean?

Q: What does code U0246 mean?

Lost Communication With Seat Control Module E. U0246 is a generic network communication code indicating that a primary control module, usually the body control module (BCM), has lost contact with the seat control module E over the vehicle's controller area network (CAN) bus. The computer detects this when it sends periodic messages to the seat module and receives no response within a specified timeout window, logging the fault and often illuminating the warning light.

DTC codes / U02xx · Lost communication with a control module / U0246

U0246Lost Communication With Seat Control Module E

U0246 is a generic network communication code indicating that a primary control module, usually the body control module (BCM), has lost contact with the seat control module E over the vehicle's controller area network (CAN) bus. The computer detects this when it sends periodic messages to the seat module and receives no response within a specified timeout window, logging the fault and often illuminating the warning light.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

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.