Alternative Fuel Tank Shutoff Valve A Control Circuit Performance/Stuck Off
Alternative-fuel shutoff valve A is electrically OK but does not open when commanded. Vehicle remains on petrol/diesel only.
Affected components
- Alternative fuel shutoff valve
Common causes
- High likelihood: Valve seized closed
- Low likelihood: Carbon or debris buildup preventing free movement
- Low likelihood: Component wear with age - mechanical play
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
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.