What does code U057B mean?

Q: What does code U057B mean?

Invalid Data Received From Battery Charger Control Module C. U057B is a communication fault indicating that a control module on the vehicle's network received invalid or corrupted data from the Battery Charger Control Module C, which manages charging functions on electric and hybrid vehicles. The receiving module detected that the data frames from this charger module did not match the expected format or contained out-of-range values, so it flagged the signal as invalid rather than acting on unreliable information.

DTC codes / U05xx · Network communication / U057B

U057BInvalid Data Received From Battery Charger Control Module C

U057B is a communication fault indicating that a control module on the vehicle's network received invalid or corrupted data from the Battery Charger Control Module C, which manages charging functions on electric and hybrid vehicles. The receiving module detected that the data frames from this charger module did not match the expected format or contained out-of-range values, so it flagged the signal as invalid rather than acting on unreliable information.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyProfessional

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.