What does code P2A9B mean?

Q: What does code P2A9B mean?

Alternative Fuel Tank Select Valve C Control Circuit Low. P2A9B indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the alternative fuel tank select valve C. This valve directs alternative fuel from a specific tank, and the low circuit voltage tells the PCM that the valve may not be receiving the command signal it expects, which can prevent proper fuel tank selection.

DTC codes / P2Axx · Hybrid propulsion / P2A9B

P2A9BAlternative Fuel Tank Select Valve C Control Circuit Low

P2A9B indicates that the powertrain control module (PCM) has detected a low-voltage condition on the control circuit for the alternative fuel tank select valve C. This valve directs alternative fuel from a specific tank, and the low circuit voltage tells the PCM that the valve may not be receiving the command signal it expects, which can prevent proper fuel tank selection.

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.