What does code P2A94 mean?

Q: What does code P2A94 mean?

Alternative Fuel Tank Select Valve A Control Circuit High. P2A94 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the alternative fuel tank select valve A, which is used on flexible-fuel or bi-fuel vehicles to switch between fuel sources. The PCM commands the valve by providing a ground path, and a high-voltage reading on the control circuit means the circuit is open, shorted to power, or the valve's internal coil is open, preventing the PCM from completing the circuit as expected.

DTC codes / P2Axx · Hybrid propulsion / P2A94

P2A94Alternative Fuel Tank Select Valve A Control Circuit High

P2A94 indicates that the powertrain control module (PCM) has detected an abnormally high voltage on the control circuit for the alternative fuel tank select valve A, which is used on flexible-fuel or bi-fuel vehicles to switch between fuel sources. The PCM commands the valve by providing a ground path, and a high-voltage reading on the control circuit means the circuit is open, shorted to power, or the valve's internal coil is open, preventing the PCM from completing the circuit as expected.

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.