What does code U024B mean?

Q: What does code U024B mean?

Lost Communication With Seat Control Module G. U024B is a network communication fault indicating that the primary control module has lost contact with Seat Control Module G, which is one of several seat-position and memory modules on the vehicle's controller area network (CAN) bus. The computer detected that expected periodic messages from this specific module stopped arriving within the allowed timeout window, so it flagged the module as offline rather than reporting a seat motor or switch failure.

DTC codes / U02xx · Lost communication with a control module / U024B

U024BLost Communication With Seat Control Module G

U024B is a network communication fault indicating that the primary control module has lost contact with Seat Control Module G, which is one of several seat-position and memory modules on the vehicle's controller area network (CAN) bus. The computer detected that expected periodic messages from this specific module stopped arriving within the allowed timeout window, so it flagged the module as offline rather than reporting a seat motor or switch failure.

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.