DTC codes / P2Dxx · Hybrid propulsion / P2DDA
P2DDA indicates the engine computer has commanded the evaporative emission (EVAP) system leak detection pump to run, but the pump's electrical current or pressure response did not change as expected, so the computer flags the pump as stuck off. In plain terms, the pump is not building pressure or vacuum when told to, and the computer has detected a performance fault rather than a simple open circuit.
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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