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DTC codes / U03xx · Software and configuration mismatches / U0347

U0347Software Incompatibility With Hybrid/EV Battery Interface Control Module N

U0347 is a network communication fault indicating that a control module on the vehicle's data bus has detected a software incompatibility with the Hybrid/EV Battery Interface Control Module N. The computer is not reporting a failed battery pack or a wiring short; it is flagging that the software versions, calibration files, or configuration data exchanged between modules do not match what the system expects.

SystemNetwork
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaSoftware and configuration mismatches

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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