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DTC codes / P2Axx · Hybrid propulsion / P2A7F

P2A7FAlternative Fuel Pump A Compression Stroke Valve Control Circuit/Open

P2A7F indicates that the powertrain control module (PCM) has detected an open circuit or excessive resistance in the electrical path controlling the compression stroke valve for alternative fuel pump A. This valve is part of the alternative fuel delivery system and is commanded by the PCM to open or close at specific times during the engine cycle; the code sets when the PCM's commanded state does not match the expected feedback from the circuit.

SystemPowertrain
Code typeGeneric (all makes)
SeverityMedium
Fix difficultyIntermediate
AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

Running on fumes Free guides aren't free to make. Top up the tank. Any amount, one time. Fuel the Garage