P2A9A

Alternative Fuel Tank Select Valve C Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$28–89 (est.)

Symptoms

Check Engine light comes on
Deterioration of vehicle dynamics
Engine transition to emergency mode
Unstable engine operation
Increased fuel consumption

Causes

Open or short circuit in control circuit
Solenoid valve malfunction
Relay or fuse problems
Oxidation of contacts in connectors
Engine control unit (ECU) malfunction

How to Fix

Conduct a visual inspection of the control circuit
Check valve resistance
Check voltage at valve connector
Replace faulty valve if necessary
Clean or replace oxidized contacts

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