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DTC codes / P2Dxx · Hybrid propulsion / P2D63
P2D63 indicates that the battery charging system's negative contactor C is stuck in the closed position, meaning the high-voltage battery pack's negative-side switch will not open when commanded. The battery energy control module detects this by comparing the commanded contactor state to the actual voltage on the negative side of the pack, and it sets the code when voltage remains present after the open command.
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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