What Does P0007 Mean?
P0007 indicates a high voltage condition on the Fuel Shutoff Valve 'A' control circuit. The ECM has detected that the control circuit voltage exceeds the expected range, typically due to an open ground, a short to battery voltage in the wiring, or a stuck-off solenoid. This may prevent the fuel shutoff valve from closing properly, meaning the engine may not start because fuel is being cut off, or the valve cannot be controlled during emergency shutdown.
Safety Warning
If the fuel shutoff valve cannot be properly controlled, the engine may fail to start or may not shut off during an emergency. On diesel engines, loss of fuel shutoff control is particularly dangerous. Repair immediately before driving.
Common Causes
30%
Open ground wire or corroded ground connection for the fuel shutoff valve solenoid circuit
25%
Short to battery voltage in the shutoff valve wiring harness where it runs near power distribution circuits
25%
Fuel shutoff valve solenoid with a mechanically stuck plunger, causing the ECM to see unexpected feedback voltage
20%
ECM driver circuit stuck high or open, failing to pull the solenoid control line to ground during command
Diagnostic Steps
1
With the solenoid disconnected, check the ground path from the solenoid connector ground terminal to battery negative — resistance must be under 0.5 ohms. A high reading indicates an open ground.
2
Check for a short to B+ on the control wire by measuring voltage at the harness connector with the solenoid disconnected and key on — voltage should not exceed the ECM command level.
3
Test the solenoid by applying 12V directly — listen for an audible click and verify the plunger moves freely. No movement indicates a stuck or seized solenoid.
4
Inspect the harness routing for areas where the shutoff valve wiring runs parallel to or crosses over power supply wires that could cause voltage cross-feed.
5
Use a bidirectional scan tool to command the fuel shutoff valve on and off while monitoring the circuit voltage to verify the ECM driver is functioning.
Estimated Repair Cost
$100 - $600
Parts + labor, varies by vehicle and location
P0007 indicates a high voltage condition on the Fuel Shutoff Valve 'A' control circuit. The ECM has detected that the control circuit voltage exceeds the expected range, typically due to an open ground, a short to battery voltage in the wiring, or a stuck-off solenoid. This may prevent the fuel shut...
The most common cause of P0007 (Fuel Shutoff Valve "A" Control Circuit High) is: Open ground wire or corroded ground connection for the fuel shutoff valve solenoid circuit
Typical repair costs for P0007 range from $100 to $600, depending on the vehicle, location, and whether you do it yourself or go to a shop.
If the fuel shutoff valve cannot be properly controlled, the engine may fail to start or may not shut off during an emergency. On diesel engines, loss of fuel shutoff control is particularly dangerous. Repair immediately before driving.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0007 to identify the root cause.
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Quick Info
Category
Powertrain
System
Fuel System
Difficulty
Type
Generic (SAE)
Recommended Tools
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