DTC codes / P2Cxx · Hybrid propulsion / P2CCA
P2CCA indicates that the engine control module has detected a low signal voltage on the coolant pump speed sensor circuit, meaning the sensor is reporting a pump speed that is lower than expected or the circuit is shorted to ground. The computer compares the sensor's output against commanded pump operation and sets this code when the signal falls below a calibrated threshold for a set time.
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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