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!

 

should there be something plugged in plus alternator problem

chult
chult
in Ford Focus Club

Featured Replies

Thanks in advance,

this is on my 61 plate titanium 1.6L focus

I am getting the battery light come on after a couple of minutes of idling, this stays on till I restart and then repeats. 

Across the battery terminal is 12volts when the engine is off and 12volts after engine is started. 

two questions really how can i test the alternator at source 

and

Should there be something plugged in the green plug in the picture 

Thanks again

Dave

20250430_174226.jpg

  • Quote


    8 minutes ago, chult said:

    when the engine is off and 12volts after engine is started. 

    Alternator has failed. Should be 13.95V with the engine running.

  • Quote
    • Like 1

    That's an O2 sensor but it's been unplugged for a long time looking at the grime inside the plug.

    Either someone fitted that DPF second hand but your car never had the wiring for the sensor.  Or it was remapped and sensor disconnected to make mapping easier.

  • Quote
    • Like 1
    • Author

    ok thanks for both replies 

    just now got the brilliant  task of changing the alternator 

    thanks again

     

  • Quote
    • Like 1

    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.

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

    The "Digestive"

    • The Digestive Forum Roundup (24th May - 31st May 2026)

      Steve ·
      The Digestive Forum Roundup (24th May - 31st May 2026) We hope this email finds you well and enjoying your week. As always, our forum has been buzzing with activity, so we’ve compiled the highlights for you. Plenty of interesting discussions are taking place, especially around the Ford Focus and Fiesta models. Starting off with the Focus, many members have been discussing issues with the Emergency Call System, particularly in the Mk4 model. PLB raised concerns about persistent malfunctions, a se
      Steve
      Steve
      • 179 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.