What does code P2A28 mean?

Q: What does code P2A28 mean?

Alternative Fuel Tank Shutoff Valve C Control Circuit Low. P2A28 indicates that the powertrain control module has detected an abnormally low voltage or current on the control circuit for the alternative fuel tank shutoff valve 'C'. This valve is used on vehicles with alternative fuel systems to isolate the fuel tank during certain conditions, and a low circuit condition means the control wire is likely shorted to ground, open, or the valve solenoid has failed.

DTC codes / P2Axx · Hybrid propulsion / P2A28

P2A28Alternative Fuel Tank Shutoff Valve C Control Circuit Low

P2A28 indicates that the powertrain control module has detected an abnormally low voltage or current on the control circuit for the alternative fuel tank shutoff valve 'C'. This valve is used on vehicles with alternative fuel systems to isolate the fuel tank during certain conditions, and a low circuit condition means the control wire is likely shorted to ground, open, or the valve solenoid has failed.

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.