What does code P2A83 mean?

DTC codes / P2Axx · Hybrid propulsion / P2A83

P2A83Alternative Fuel Pump B Compression Stroke Valve Control Circuit/Open

P2A83 indicates that the powertrain control module (PCM) has detected an open circuit or loss of continuity in the electrical path that controls the compression stroke valve for alternative fuel pump B. This valve is part of the high-pressure fuel pump assembly on a dedicated alternative fuel vehicle, and the PCM uses it to manage fuel delivery during the compression stroke; when the circuit is open, the PCM cannot command the valve and sets this code.

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.