What does code U0489 mean?

DTC codes / U04xx · Invalid data received from a module / U0489

U0489Invalid Data Received From Digital Disc Player/Changer Module B

U0489 is a communication fault indicating that a control module on the vehicle's network received invalid or corrupted data from the digital disc player/changer module, often called the CD changer. The computer detected a message from that module that failed its internal validity check, so the infotainment or body control system flagged the data as unusable rather than acting on it.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaInvalid data received from a 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.