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DTC codes / P2Cxx · Hybrid propulsion / P2C8B

P2C8BHybrid/EV Battery Interface Control Module B Performance

P2C8B indicates that the hybrid or electric vehicle battery interface control module B has reported a performance fault to the powertrain control module, meaning the module's internal monitoring detected that it is not operating within its expected parameters. The computer has detected a deviation in the module's ability to accurately measure, report, or control the high-voltage battery interface functions, which can affect battery management and overall hybrid system operation.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyProfessional
AreaHybrid propulsion

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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