Alternative Fuel Tank Select Valve B Control Circuit High

Where it lives

For P2A98, the circuit described runs through the valve. The description of P2A98 reports a fault at the valve.

Check these first

• A short to voltage on the alternative fuel tank select valve B control wire
• A failed tank select valve B solenoid
• An open ground at valve B
• Corrosion in the valve B connector
• A control module driver fault holding valve B high

What to do next

1. Command alternative fuel tank select valve B with a scan tool
2. Test the valve B control circuit for a short to voltage
3. Check the valve B ground
4. Inspect the valve B connector for corrosion
5. Replace the tank select valve B if the circuit tests good
6. Clear the code and retest

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