P0006
Fuel Shutoff Valve A Control Circuit Low
Fuel system
Generic OBD-II
High
What it means
P0006 means the engine computer detected low voltage — a short to ground or an open — in the control circuit for fuel shutoff valve 'A'. This valve, common on diesel and some fuel-injected engines, controls whether fuel reaches the engine. When its circuit faults the engine may be hard to start, stall, or refuse to run.
High
Can I keep driving? Risky — the fuel shutoff valve gates fuel to the engine, so a circuit fault can cause hard starting, stalling, or a no-start. Get it diagnosed before you're stranded.
Common symptoms
What you'll notice
- Hard starting or a no-start condition
- Engine stalls or cuts out unexpectedly
- Reduced power or rough running
- Check-engine light on
Common causes
Most likely first
- Failed fuel shutoff valve solenoidLikely
- Short to ground or open in the control-circuit wiringCommon
- Corroded or loose connector at the valveCommon
- Failed engine control module (ECM) driverLess often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and check the valve connector for a low or grounded control signal.
- Inspect the wiring between the ECM and the shutoff valve for shorts to ground, chafing, or corrosion.
- Measure the solenoid's resistance against spec; replace the valve if it's out of range or open.
- Confirm the valve gets power and a clean ground, and repair wiring as needed.
- If wiring and valve test good, suspect the ECM control driver. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0006?+
Not really — because this valve controls fuel to the engine, the fault can leave you stranded with a stall or no-start. Treat it as urgent.
Can I just clear P0006?+
You can, but if the circuit fault is still present it returns quickly — and the engine may not restart. Fix the cause first.
Related codes
Often seen with P0006
Read & clear P0006 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX