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DTC codes / U04xx · Invalid data received from a module / U04C0

U04C0Invalid Data Received From Battery Management Control Module

U04C0 is a communication fault indicating that one or more control modules received invalid or corrupted data from the Battery Management Control Module over the vehicle's network. The computer detected that the battery management module's messages were missing, malformed, or failed a checksum, so other modules could not trust its data.

SystemNetwork
Code typeGeneric (all makes)
SeverityMedium
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.

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