What does code U0487 mean?

Q: What does code U0487 mean?

Invalid Data Received From Audio Amplifier A. U0487 is a communication fault indicating that a control module received invalid or corrupted data from the audio amplifier, designated as 'A' in the vehicle's network. The module monitoring the amplifier's data stream detected that the messages were missing expected parameters, out of range, or failed a checksum, so it flagged the signal as invalid rather than simply absent.

DTC codes / U04xx · Invalid data received from a module / U0487

U0487Invalid Data Received From Audio Amplifier A

U0487 is a communication fault indicating that a control module received invalid or corrupted data from the audio amplifier, designated as 'A' in the vehicle's network. The module monitoring the amplifier's data stream detected that the messages were missing expected parameters, out of range, or failed a checksum, so it flagged the signal as invalid rather than simply absent.

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.