Alternative Fuel Tank Shutoff Valve A Control Circuit High

Where it lives

For P224F, the circuit described runs through the valve. The description of P224F reports a fault at the valve.

Check these first

• A short to voltage on the shutoff valve A control wire
• A failed shutoff valve A solenoid with high resistance
• Chafed shutoff valve A wiring touching a power feed
• A driver fault in the control module for shutoff valve A

What to do next

1. Read shutoff valve A control status on a scan tool
2. Test the shutoff valve A control wire for a short to voltage
3. Inspect the shutoff valve A harness for chafe
4. Measure shutoff valve A solenoid resistance
5. Replace the shutoff valve A if the wiring tests good
6. Clear the code and retest

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