What does code P224E mean?

Q: What does code P224E mean?

Alternative Fuel Tank Shutoff Valve A Control Circuit Low. P224E indicates that the powertrain control module has detected an abnormally low voltage on the control circuit for the alternative fuel tank shutoff valve A, which is used to isolate the alternative fuel tank from the rest of the fuel system. The circuit is typically commanded by a low-side driver inside the module, and a low condition means the module sees voltage below the expected threshold when the valve should be energized or when the circuit is at rest.

DTC codes / P22xx · Fuel and air metering (injector circuits) / P224E

P224EAlternative Fuel Tank Shutoff Valve A Control Circuit Low

P224E indicates that the powertrain control module has detected an abnormally low voltage on the control circuit for the alternative fuel tank shutoff valve A, which is used to isolate the alternative fuel tank from the rest of the fuel system. The circuit is typically commanded by a low-side driver inside the module, and a low condition means the module sees voltage below the expected threshold when the valve should be energized or when the circuit is at rest.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaFuel and air metering (injector circuits)

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.