Do it yourself
Frequently asked questions about cars and motorcycles
Car tutorial (Do it yourself) Motorcycle tutorial (Do it yourself) Frequently Asked Questions

How to Reset the Engine Control Unit of the Ford Focus

Model: Ford Focus MK 3 - Years: 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018
Part: Warning light – error code

See other generations:
Video tutorial

In today's tutorial, you will learn how to reset the engine control unit of the Ford Focus by following the instructions below. First, open the bonnet of your car by pulling the lever inside; then use a 10 mm socket or spanner to loosen the nuts on the battery terminals (positive and negative) to disconnect it, as shown in the video.

Keep the battery disconnected for a couple of minutes to reset the control unit; then reconnect it and finally start the engine!


Updated on 15 July 2026 by ScegliAuto


Related tutorials

How to reset the ECU on a Ford Focus MK1
How to reset the ECU on a Ford Focus MK1
Ford Focus (1998-2004 / MK 1) In this brief guide, you will learn how to reset the control unit on a first-generation Ford Focus using the following instructions. First, open the …
How to Replace the ECU on the Ford Focus?
How to Replace the ECU on the Ford Focus?
Ford Focus (2011-2018 / MK 3) To replace the ECU on the Ford Focus, you may need to remove the engine from its housing: after disconnecting all hoses and connectors, the engine ca…
How to Replace the Airbag Control Unit on a Ford Focus?
How to Replace the Airbag Control Unit on a Ford Focus?
Ford Focus (2011-2018 / MK 3) To replace the airbag control unit on a Ford Focus, first remove the plastic protective cap located on the side of the centre console, near the glove…

Other guides you may be interested in

    Frequently Asked Questions

    • Focus 2004-2011 - What does the airbag warning light on Ford Focus indicate? Read answer

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

More videos