Code result
P224C
Alternative Fuel Tank Shutoff Valve A Control Circuit/Open
High severity
What it means
The drive circuit for the shutoff valve at the alternative-fuel tank A is open. Bi-fuel vehicles (CNG, LPG, hydrogen) use a high-pressure shutoff valve at the tank for safety; with this fault the alternative fuel cannot be drawn from the tank.
Is it safe to drive?
No — stop driving
This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly.
Most likely causes
Solenoid winding open
highOne of the most commonly reported causes for this code — check this first.
Pin pushed back out of connector body
lowLess common, but worth ruling out after the more likely causes.
Cracked solder joint inside the module or sensor
lowLess common, but worth ruling out after the more likely causes.
Related help
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