P2A29

Alternative Fuel Tank Shutoff Valve C Control Circuit High

Severity

🔴 High

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–167 (est.)

Symptoms

Switching to the main fuel type
Check Engine light comes on
Inability to refuel with alternative fuels
Reduced engine power
Smell of fuel in the cabin

Causes

Short circuit in valve control circuit
Fuel cut-off valve malfunction
Broken or damaged wiring
Problems with the engine control unit
Contact corrosion

How to Fix

Check valve control circuit for short circuit
Test valve resistance
Inspect the wiring harness for damage
Check contacts and connectors
Replace the fuel shut-off valve if necessary

Related codes

P2A28 P2A30 P2A31