What does code U04B0 mean?

DTC codes / U04xx · Invalid data received from a module / U04B0

U04B0Invalid Data Received From Hybrid/EV Battery Interface Control Module P

U04B0 is a communication fault where one electronic control module on the vehicle's network receives invalid or corrupted data from the Hybrid/EV Battery Interface Control Module P, which is the module that manages the high-voltage battery pack and reports its status to the rest of the car. The computer detected that the data frames coming from that module are missing expected values, out of range, or fail the checksum, so it cannot trust the battery information being broadcast.

SystemNetwork

Code typeGeneric (all makes)

SeverityMedium

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.