Alternative Fuel Tank Shutoff Valve A Control Circuit/Open
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.
Affected components
- Alternative fuel shutoff valve
Common causes
- High likelihood: Solenoid winding open
- Low likelihood: Pin pushed back out of connector body
- Low likelihood: Cracked solder joint inside the module or sensor
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- Reduced-power or limp mode may occur
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.