What does code P2A90 mean?

Q: What does code P2A90 mean?

Alternative Fuel Pump C Performance. P2A90 indicates that the powertrain control module has detected a performance fault with the alternative fuel pump circuit, meaning the pump is not delivering the expected pressure or flow for the commanded duty cycle. The computer monitors the pump's electrical current and feedback signal, and when the actual response deviates from the expected profile, it sets this code and illuminates the malfunction indicator lamp.

DTC codes / P2Axx · Hybrid propulsion / P2A90

P2A90Alternative Fuel Pump C Performance

P2A90 indicates that the powertrain control module has detected a performance fault with the alternative fuel pump circuit, meaning the pump is not delivering the expected pressure or flow for the commanded duty cycle. The computer monitors the pump's electrical current and feedback signal, and when the actual response deviates from the expected profile, it sets this code and illuminates the malfunction indicator lamp.

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.