DTC codes / P2Axx · Hybrid propulsion / P2A1D
P2A1D indicates that the engine control module (ECM) has detected an abnormally high electrical signal from the fuel metering control circuit on the injection pump, specifically related to the cam, rotor, or injector. This high condition means the control circuit voltage or current is outside the expected range, which can disrupt precise fuel delivery and affect engine performance.
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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