All codes/P2A2A

P2A2A

Alternative Fuel Tank Shutoff Valve D Control Circuit/Open

High severity

The control circuit of alternative fuel tank shutoff valve D reports a control circuit/open condition. Tank isolation cannot be commanded as expected on multi-tank CNG/LPG systems.

The control circuit of alternative fuel tank shutoff valve D reports a control circuit/open condition. Tank isolation cannot be commanded as expected on multi-tank CNG/LPG systems.

Common causes

  • Open in valve control wire

    One of the most commonly reported causes for this code — check this first.

    high

    Typical part cost: $170-880

  • Open valve coil

    A plausible cause — test and verify before replacing parts.

    medium

    Typical part cost: $170-880

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First things to check

  1. 1Confirm the code with a scan tool and check for additional related codes.
  2. 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does P2A2A mean?

P2A2A means "Alternative Fuel Tank Shutoff Valve D Control Circuit/Open". It is a generic OBD-II code that points to a fault in the auxiliary emission controls.

What are the most common causes of P2A2A?

open in valve control wire; open valve coil; pin pushed back out of connector body — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

This code can put the vehicle into limp or reduced-power mode. Avoid extended driving and have the vehicle diagnosed promptly. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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