P0006 Fuel Shutoff Valve A Control Circuit Low

The fuel shutoff valve is a solenoid valve that opens or blocks the fuel supply. On diesel engines it is usually closed without current, so that the engine stops reliably when switched off. The engine control module energises it to let fuel flow and monitors its control circuit continuously. P0006 means voltage or current in the control circuit is below the expected range, typically because of a short to ground; depending on the output stage an open circuit can also show up this way. The valve is then not energised correctly, which can prevent starting or make the engine stall.

Likely causes

Symptoms

• Check engine light on
• Hard starting or no start
• Engine stalls

Repair estimate

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

Related codes

References: law.cornell.edu, patents.google.com.