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DTC codes / P2Cxx · Hybrid propulsion / P2CA8
P2CA8 indicates that the powertrain control module has detected an out-of-range or performance fault in the temperature sensor circuit for DC/DC converter E, which is a voltage conversion module used in hybrid and electric vehicles. The computer monitors the sensor's signal and flags this code when the voltage or inferred temperature falls outside the expected range for the operating conditions, or when the signal is erratic.
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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