What does code U058B mean?

Q: What does code U058B mean?

Invalid Data Received From Transmission Fluid Pump Module B. U058B is a generic network communication code indicating that a control module received invalid or corrupted data from the transmission fluid pump module B over the vehicle's controller area network (CAN) bus. The computer detected a message from that module that failed its internal checksum or contained values outside the expected range, so it flagged the data as untrustworthy rather than treating it as a valid signal.

DTC codes / U05xx · Network communication / U058B

U058BInvalid Data Received From Transmission Fluid Pump Module B

U058B is a generic network communication code indicating that a control module received invalid or corrupted data from the transmission fluid pump module B over the vehicle's controller area network (CAN) bus. The computer detected a message from that module that failed its internal checksum or contained values outside the expected range, so it flagged the data as untrustworthy rather than treating it as a valid signal.

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.