P2A23

Alternative Fuel Tank Shutoff Valve B Control Circuit Performance/Stuck Off

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Inability to switch to alternative fuel
Check Engine Light Illuminates
Reduced engine power when trying to use alternative fuel
Errors in the fuel management system

Causes

Open or short circuit in valve control circuit
Valve stuck in closed position
Malfunction of the solenoid part of the valve
Problems with the fuel system control unit
Corroded contacts or damaged wiring harness

How to Fix

Check valve control circuit integrity
Check valve coil resistance
Clean or replace a stuck valve
Check connections and wiring harness
If necessary, replace the fuel shut-off valve

Related codes

P2A22 P2A24 P2A25