What does code P2A88 mean?

DTC codes / P2Axx · Hybrid propulsion / P2A88

P2A88Alternative Fuel Pump C Compression Stroke Valve Control Circuit Range/Performance

P2A88 indicates that the powertrain control module (PCM) has detected an out-of-range or performance fault in the electrical circuit that controls the compression stroke valve for the alternative fuel pump labeled 'C'. The PCM monitors the valve's command and feedback signals and sets this code when the circuit's voltage, current, or response time falls outside the expected window during key-on or running conditions.

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.