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Key Fob Stopped Working But Battery Isn't Dead


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#1 K2008

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Posted 15 April 2011 - 06:31 PM

Hi,

The other day my fob stopped working. Seeing as I've had the car 4 years and not ever changed the battery in the fob, I just assumed it was dead so I changed the battery for another today, but it didn't do the trick. My dad tested the battery I originally had in the fob and it was in fully working order, so it was not dead.

Does anyone know what might be the problem?

I'm lazy and prefer locking the car with the remote buttons on my key rather than using the key hole :unsure: :lol:

Edit: I have no clue about these types of things, but this is the only key I have for my car (I decided against getting another, too expensive!) - so please excuse my ignorance, but if the key/fob thingy was 'broken' (not the battery) would I no longer be able to start the engine with it?

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#2 shaolin2000

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Posted 16 April 2011 - 10:26 PM

My key fob also went a bit wrong, and has done a couple times if the battery is disconnected. Give this a try.

  • Open the door with the key
  • Put the key in the ignition
  • Turn the key to the second position (lights up the dashboard)
  • Turn the key back to the off position
  • Repeat steps 3 & 4 four times (you will hear an audio sound if you have done it right)
  • When you hear the audio sound press the lock button on your key fob a few times (I normally hit it about 6 or so times for about 10 seconds)
  • If the doors lock, you are laughing and you have fixed it, if the doors don't then give it another go (I couldn't do it right first time)

Hope this helps.. Good Luck

#3 K2008

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Posted 18 April 2011 - 03:09 PM

Thanks shaolin2000, I'll give it a try!

My key fob also went a bit wrong, and has done a couple times if the battery is disconnected. Give this a try.

  • Open the door with the key
  • Put the key in the ignition
  • Turn the key to the second position (lights up the dashboard)
  • Turn the key back to the off position
  • Repeat steps 3 & 4 four times (you will hear an audio sound if you have done it right)
  • When you hear the audio sound press the lock button on your key fob a few times (I normally hit it about 6 or so times for about 10 seconds)
  • If the doors lock, you are laughing and you have fixed it, if the doors don't then give it another go (I couldn't do it right first time)

Hope this helps.. Good Luck



#4 shawaj

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Posted 16 January 2014 - 12:34 PM

Have browsed the site a bit before, however I just wanted to check in and say thank you for the information at the bottom of this post.

After being in the garage for a dpf change, my 09 diesel focus after about two days stopped working with the remote key locking ( you could unlock and start the car with key, just not using the remote). I thought it must be a fuse or electrical issue as it seemed strange that it didn't happen immediately, so never suspected it being sure to a disconnected battery.

Anyway, after following these instructions it works perfectly again.

Thanks for your help

#5 shawaj

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Posted 16 January 2014 - 12:36 PM

That was supposed to say due not sure (auto correct fail)

#6 Sberry19

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  • Year: 2009
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Posted 01 July 2014 - 06:24 PM

Hi Guys

 

I am having a similar problem with my MK7 fiesta key fob but unfortunately there does appear to be some damage to the PCB inside of it which is most likely why it has stopped working.

 

It still starts the car and unlocks the door manually but wont work remotely.

 

I was wondering if it would be possible to program a new untouched fob the way that is mentioned above? as the blade is working fine i could but the old blade on the new fob (which would almost certainly be cheaper than getting ford to do it) :)

 

Thanks for any advise you may have



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