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DTC codes / P2Dxx · Hybrid propulsion / P2D53
P2D53 means the hybrid or electric vehicle battery pack coolant temperature sensor on circuit C is reporting a value outside the range the computer expects, or the signal is behaving erratically. The battery energy control module compares this sensor's reading against other temperature sensors and operating conditions, and it sets the code when the circuit's performance does not match a plausible coolant temperature.
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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