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P0005 OBD Fault Code (Causes & Fixes)

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Last Updated on: 7th September 2023, 12:45 am

P0005 is a fault code standing for “fuel shutoff valve control -circuit open”.

Fault CodeFault LocationProbable Cause
P0005Fuel shut off valve -circuit openWiring open circuit, fuel shut off valve

P0005 is a generic fault code that indicates a problem with the fuel pump shut off solenoid as detected by the Engine Control Module (ECM).

It indicates a problem with the shut off solenoid or its circuit.

It may potentially be linked to the P0006 or P0007 trouble codes.

What P0005 Means

P0005 is a general diagnostic trouble code that indicates a problem with the fuel pump shut off solenoid as detected by the Engine Control Module (ECM).

The fuel pump shut off solenoid is an electromagnetic switch that, depending on the position of the ignition switch, enables or stops the flow of gasoline from the fuel pump to the engine.

When the ignition key is turned, a signal is transmitted to the fuel pump shut off solenoid, which protrudes or retracts a shaft, starting or stopping the flow of gasoline to the engine.

If the ignition is turned off or the switch is malfunctioning, the shaft pops out into the fuel route, blocking the flow of gasoline.

Possible Causes

The fuel shutoff valve control circuit/open code may have several causes, such as the following.

  • A defective fuel pump shut off solenoid
  • Fuel lines clogged
  • An ECM with a fault
  • A malfunctioning ignition switch
  • A shorted or open circuit exists between the ignition switch, the ECM, or the fuel pump shut-off solenoid

This failure code might also be caused by different systems and components connected to the fuel system which is why it needs to be properly diagnosed.

Tip: Use a good reputable scanner when diagnosing any OBD codes or issues.

This code and many other DTCs might be caused by excessive heat, normal wear and tear, vibrations, shock and impacts (from potholes, for example), rubbing and friction, corrosion, and so on.

Signs & Symptoms

The P0005 code may cause the check engine light (MIL) to illuminate on the instrument panel/dash, and it will most likely result in the following symptoms.

  • Difficulty or engine doesn’t start
  • Engine may stall
  • Check engine light illumination (MIL)

Risks

It’s not a severe issue, but it’s likely to result in a stall or a no-start situation. This might be dangerous depending on when and where the vehicle stalls.

We recommend to avoid driving the vehicle if this error code appears.

Diagnosing

The following procedure is how a technician may diagnose a P0005 error code.

  1. With a multimeter, check the ground, voltage reference, and resistance levels of the ignition switch and the fuel pump shut off solenoid.
  2. Compares the results of these tests to the manufacturer’s standards.
  3. Examine the ECM cables and terminals for corrosion, fraying and damage.
  4. Checks the pressure of the fuel pump.

Many technicians feel that the problem with a fuel pump shut off solenoid fault code is always in the fuel pump, therefore they replace it completely.

The true problem with this code is often external, and it may only require replacing the solenoid.

It is recommended to check if the fuel pump shut off solenoid problem is external or internal to the fuel pump. Always use a professional OBD scanner to get the most accurate diagnosis.

How to Fix

The following are some common fixes for this issue.

  1. Changing out a faulty Engine Control Module
  2. A defective fuel pump shut off solenoid was replaced.
  3. Replacing a fuel pump
  4. Repairing an open or short in the ECM’s circuits, the Fuel Pump Solenoid, or the ignition switch
  • Andy Lewin

    Andy Lewin is a senior mechanic, ASE qualified master technician, and an experienced automotive engineer. He's passionate about serving the automotive community with the highest-quality and trustworthy information on all things automotive. He loves to write about car repairs, maintenance, car modifications and tuning, faults, and much more.

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