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DTC codes / P0Cxx · Hybrid propulsion / P0C7F
P0C7F indicates that the hybrid or electric vehicle battery management system has detected an abnormally high voltage on the signal circuit for temperature sensor G, which monitors a specific cell or module within the high-voltage battery pack. The computer compares this signal against expected limits and sets the code when the circuit voltage exceeds the calibrated threshold, often indicating an open circuit, a short to voltage, or a sensor fault.
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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