Skip to content
View in the app

A better way to browse. Learn more.
Ford Owners Club - Ford Forums

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.



Join the Independent Ford Owners' Club

Our community has been built by enthusiasts, for enthusiasts, and proudly run by Ford owners' for over 18 years. As an independent, non-official club, everything you’ll find here, advice, support, and opinions, comes directly from members with genuine Ford ownership experience.

Join our friendly community... it's Free!

 

ECU Fuse location?

jonjon
jonjon
in Ford Focus Club

Featured Replies

 

Hi all, I've had the Check Engine Light on for a while, done quite a lot of research but in mean time just want to get rid of it for upcoming MOT

Was looking to remove ECU fuse to clear memory but I can't find it, there isn't a particular fuse labelled ECU

Can anyone tell me where it is and how it's labelled? Thanks

  • Quote


    get your mot done before may and you wont need to worry about engine light on. new rules about engine light dont come in until then. 

  • Quote
    • Author

    Thanks for info didn't realise that cheers But even so do you know if there is an ECU fuse for my model? 

    I took out No30 Engine Control Model marked E it cut out the engine but Check Engine Light remained on.

    Whatabout No35 Engine Management Module/valves/solenoids? Or No43 Electronic Modulebattery supply?

    Saw somewhere that it's the F26 10A in the Auxiliary Box but when I look for it the fuse seems to be missing? Someone may have forgotten to put it back in?

    Why Ford doesn't just label a fuse as ECU is beyond me

  • Quote
    • Author

    PS I just disconnected the negative from the battery and left it off for 3mins but when connected all back up and started the car the ***** Check Engine Light is still on, why so?

    Im going to start getting nightmares about this light

  • Quote

    the fault that puts the mil light on is stored in pcm memory that doesnt require battery to keep. why dont you buy a cheap code reader , see why the light is on and if required clear the code. the light will come back on  pretty instantly though depending on fault. 

  • Quote
    • Author

    Yes that's what I'm going to do I've seen a few on ebay for peanuts and found where I need to plug in etc Thanks for your help

  • Quote

    • Latest Deals

    Ford UK Shop for genuine Ford parts & accessories

    Disclaimer: As the club is an eBay Partner, The club may be compensated if you make a purchase via the club

    Join the conversation

    You can post now and register later. If you have an account, sign in now to post with your account.
    Note: Your post will require moderator approval before it will be visible.

    Guest
    Reply to this topic...
    Go to topic listing

    The "Digestive"

    • The Digestive Forum Roundup (31st May - 7th June 2026)

      Steve ·
      The Digestive Forum Roundup (31st May - 7th June 2026) We hope you’re all enjoying your week and finding time for some time enjoying your Ford! This week, our vibrant forum has been buzzing with discussions that touch on a diverse range of Ford models, from the Mondeo to the Fiesta and Focus. Here’s a recap of some key conversations that might pique your interest. Starting with the Mondeo, user Frenchspanner shared a particularly frustrating issue relating to a 'Immobiliser Active' message appea
      Steve
      Steve
      • 122 views





    Background Picker
    Customize Layout

    Account

    Navigation

    Search

    Search

    Configure browser push notifications
    Chrome (Android)
    1. Tap the lock icon next to the address bar.
    2. Tap Permissions → Notifications.
    3. Adjust your preference.
    Chrome (Desktop)
    1. Click the padlock icon in the address bar.
    2. Select Site settings.
    3. Find Notifications and adjust your preference.