What does code U0559 mean?

Q: What does code U0559 mean?

Invalid Data Received From Radio Transceiver. U0559 is a communication fault indicating that a control module received invalid or corrupted data from the radio transceiver over the vehicle's network. The computer detected a message from the radio transceiver that failed its internal validity check, such as a checksum error or missing expected data, so it flagged the signal as unreliable.

DTC codes / U05xx · Network communication / U0559

U0559Invalid Data Received From Radio Transceiver

U0559 is a communication fault indicating that a control module received invalid or corrupted data from the radio transceiver over the vehicle's network. The computer detected a message from the radio transceiver that failed its internal validity check, such as a checksum error or missing expected data, so it flagged the signal as unreliable.

SystemNetwork

Code typeGeneric (all makes)

SeverityLow

Fix difficultyIntermediate

AreaNetwork communication

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.