What does code U0477 mean?

Q: What does code U0477 mean?

Invalid Data Received From Restraints System Sensor G. U0477 means the module that monitors the restraints system received invalid or missing data from a specific sensor, designated Sensor G, within the airbag and seatbelt safety network. The computer detected a message that failed its internal plausibility or checksum test, so it cannot trust the sensor reading and sets this communication fault.

DTC codes / U04xx · Invalid data received from a module / U0477

U0477Invalid Data Received From Restraints System Sensor G

U0477 means the module that monitors the restraints system received invalid or missing data from a specific sensor, designated Sensor G, within the airbag and seatbelt safety network. The computer detected a message that failed its internal plausibility or checksum test, so it cannot trust the sensor reading and sets this communication fault.

SystemNetwork

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

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.