Fuel Shutoff Valve "A" Control Circuit Low
The P0006 code means the vehicle's onboard diagnostic system has detected: Fuel Shutoff Valve "A" Control Circuit Low. This is a critical severity code.
- Keep driving?
- No — stop driving
- DIY difficulty
- hard
- Estimated cost
- $200 - $700 (parts and labor)
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What Are the Symptoms of P0006?
- Engine stalls unexpectedly
- No restart after stall
- Check Engine Light on
- Loss of fuel delivery
What Causes P0006? (Most Likely First)
- Short to ground in fuel shutoff valve wiring Very High
- Failed fuel shutoff valve with internal short High
- Damaged wiring harness near engine components Moderate
- Water intrusion in shutoff valve connector Moderate
Can I Still Drive with P0006?
No — stop driving. P0006 is rated critical severity. Continuing to drive in this state risks further damage — get it looked at before your next trip.
Frequently Asked Questions
What is the difference between P0005 and P0006?
P0005 indicates an open circuit (no electrical connection) in the fuel shutoff valve wiring. P0006 indicates a low voltage condition, typically caused by a short to ground that pulls the circuit voltage below the expected operating range.
Can water cause P0006?
Yes. Water intrusion into the fuel shutoff valve connector is a common cause, especially on trucks used in wet or snowy conditions. Corrosion from water can create a conductive path to ground.
Is P0006 a safety concern?
Yes. The fuel shutoff valve is a critical safety component. If the engine stalls due to this code while driving, you will lose power steering assist and brake assist may be limited. Pull over safely and have the vehicle towed.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose P0006?
-
Disconnect the fuel shutoff valve and check for a short to ground on the control wire
-
Measure solenoid resistance and compare to manufacturer spec; very low resistance indicates internal short
-
Inspect wiring harness for chafing against engine brackets or sharp edges
-
Check connector for signs of water damage or green corrosion on terminals
Sources 2
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines the generic OBD-II code ranges)
- Cross-checked against the SAE J2012:2002 DTC table (2026-08-27)archived scan of the SAE standard — readable copy, not SAE’s current edition
Which Vehicles Commonly Get P0006?
- 2008-2018 Ford F-350 Super Duty 6.7L
- 2010-2020 Ram 3500 6.7L Cummins
- 2011-2019 GMC Sierra 2500HD Duramax
- 2013-2020 Ford F-150 3.0L Diesel
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