P2A22
Alternative Fuel Tank Shutoff Valve B Control Circuit/Open
P2A22 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank Shutoff Valve B Control Circuit/Open. Common causes: broken wire in the valve control circuit, malfunction of the shut-off valve itself. Estimated repair cost: $17–89.
Symptoms
- Check Engine Light Is On
- Problems starting an engine on alternative fuel
- The car switches to gasoline while the engine is running
- Loss of power when running on alternative fuel
- Unstable operation of the engine using alternative fuel
Causes
- Broken wire in the valve control circuit
- Malfunction of the shut-off valve itself
- Problems with the relay or circuit fuse
- Short circuit in wiring harness
- Engine control unit (ECU) malfunction
How to Fix
- Check the integrity of the wires in the control circuit
- Check fuses and relays associated with the system
- Test the resistance of the shut-off valve
- Check the presence of power and ground at the valve connector
- If necessary, replace the fuel shut-off valve
Related codes
Error P2A22 by Vehicle Brand
FAQ
What does the P2A22 code mean?
P2A22 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank Shutoff Valve B Control Circuit/Open
What causes a P2A22 error code?
The most common causes of P2A22 include: Broken wire in the valve control circuit; Malfunction of the shut-off valve itself; Problems with the relay or circuit fuse; Short circuit in wiring harness.
How do I fix a P2A22 diagnostic trouble code?
To fix P2A22: Check the integrity of the wires in the control circuit. Check fuses and relays associated with the system. Test the resistance of the shut-off valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2A22?
Do not drive — repair immediately
How much does it cost to fix P2A22?
The estimated repair cost for P2A22 is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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