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How to Fix the Immobiliser Issue on the Ford Fiesta

Model: Ford Fiesta MK V, MK 5, Fiesta 5 - Years: 2002, 2003, 2004, 2005, 2006, 2007, 2008
Part: Checks and maintenance

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Video tutorial

In today's video, you will learn how to address the immobiliser system not functioning on the Ford Fiesta. First, connect the diagnostic tool to the OBD port of the vehicle, then proceed with the necessary checks.

If that is not sufficient, go to the engine bay and disconnect the battery. At this point, consult the vehicle's wiring diagram and locate the appropriate contact to intervene on. Once done, you can proceed with the subsequent testing steps illustrated in the video.

This should be sufficient to fix your vehicle and the system.


Updated on 10 July 2026 by ScegliAuto


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How to Reset the Tire Pressure Light on a MG ZS?

On the instrument cluster of the MG ZS, the tire pressure light that appears can be reset by inflating the tires to the correct pressure: this value will be indicated on the sticker attached to the driver's door pillar. Once the tires have been properly inflated, you can turn on the instrument cluster and navigate through the menu until you find the option that indicates tire pressure: if this screen shows the new values, the light will turn off; otherwise, you will need to drive for a few miles so that the sensors can read the new values and turn off the light afterward.

Watch the video!


by ScegliAuto

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