Inertia Switch: How to Reset Fuel Shut Off Switch on Ford Fiesta (and Other Cars)

fiesta ford fuel cut off switch

Engine cranks, but car won’t start. Sound familiar?

After passing over a deep pothole, speed bump or after a car accident, you could end up with engine unable to start.

You might think that there is some major motor damage or malfunction that caused this, but in most cases you only need to reset the fuel cut off switch which was activated by the impact.

Looks very simple, right?

Not exactly. From my experience, the main problem is how to find hidden emergency fuel shut off switch location. That is why I have decided to share my experience and write this article.

If you read carefully, today you’re going to learn how to find and reset fuel shut of switch on Ford, Peugeot, VW golf, Citroen, Vauxhall, Subaru, Renault, Dacia, Mazda and many other car manufacturers.

To start with, I’m going to explain what is “fuel pump emergency shut off switch”. So read carefully…

What is Fuel Pump Emergency Cut Off Switch?

Actually this device is analog to electric circuit breaker, but only for fuel, not electricity.

Many vehicles come with fuel pump shut off switches. Inertia switch is a security measure implemented by car manufacturers in order to shut off the fuel supply in case of a car crash or some accident where vehicle comes to a sudden stop instantly.

How to Reset Fuel Pump Shut Off Switch

This is similar to electrical circuit breaker in your home which can be easily reset by pushing the button or pulling the leverage down. All modern fuel injection cars are equipped with an inertial fuel cut off switch that shuts off power supply for the fuel pump if the vehicle is in a collision. This prevents fuel being pumped (under pressure) from the fuel tank in case fuel line is damaged during the accident.

To start the engine after a car accident you need to find fuel cut off switch location (car inertia switch) and reset it

I had an accident with my 1.25 ccm Ford Fiesta 2006 and after a crash – car would not start. So I figured out that there must be some kind of fuel shut off switch but the problem was that I could not find/locate it! After some research of possible inertia switch location, I narrowed down the potential location to somewhere behind the drawer / glove compartment on passenger side (which is right side of the vehicle on US/EU cars and left side on UK/AUS cars).

Steps to locate and reset fuel cut off switch on Ford Fiesta

  • First, open the glove compartment
  • Pull out the glove compartment by firmly pressing left side toward inner section
  • Look for device with rubber yellow cap on it
  • Push the rubber yellow cap on inertia switch

ford inertia switch

locate-ford-fiesta-inertia-switch-fuel-cut-off-2

how to find ford fiesta inertia switch - fuel cut off switch

how to reset ford fuel cutoff switch

Emergency Fuel Shut Off Switch Location on Other Cars

On Ford, Peugeot, VW, Citroen, Vauxhall, Subaru, Renault, Toyota and Mazda, inertia switch location is usually on one of the following 2 hidden places:

  • Behind or below glove compartment, sometimes hidden under the carpet
  • On the drivers side, between foot rest area and door, sometimes hidden under the carpet

After finding the switch, it is very easy to reset it with one push of a button.

Now put the key in and start the engine. You might need to crank it up a few times before the motor is started.

And that`s it. You’ve just saved at least $50 for the mechanic…

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6 Responses

  1. marian says:

    Hello,
    I have Ford focus Ghia 2.0 16V TDCI from 2006. Where it is located fuel cut off switch?
    Thank you so much for help.

    Regards,
    Marian

  2. Don Brand says:

    I have a 03 ford explorer sport and have been experiencing problems with the inertia switch tripping, I thought. After ordering a replacement, I discovered the switch is fine. The problem is in the connector which is fried. After researching further on the internet, I found this seems to be a very common problem with these connectors. Seems they are either poorly designed or underrated for the current. I just by-passed the switch and connector. Problem solved!

  3. 2005 fiesta owner says:

    Man thanks a lot!!! today i got my ford fiesta back home on a platform from a repair shop, not a mechanic, just a repair shop and my pump would n`t start so i thought i have to change it
    I started looking on internet on how to unlock my pump and i found your article and it save me from buying a fuel pump and paying for a mechanic!!!
    After the push button it started, thank you for this article!!!!

  4. mpumie says:

    Renualt clio iii 2006 model 1.4 16velve fuel cat of swich position

  5. Isaac Mdhluli says:

    Where do I locate a 2L ford sapphire inertia switch

  6. Raees khan says:

    Where is the fuel cut out switch on a 2015 nissan pulsar please

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