My remote key fob for my Focus (UK-1999) is not working very well, and only
has very limited range. I thought it might be the battery that had gone, so
changed it, but that didn't really help.
I seem to remember reading somewhere that the transmitting frequency needs
re-tuning sometimes on key fobs! Does anyone know if this is true and might
be the problem I'm having with my fob? If so can it be re-tuned to the
Any help appreciated.
I had the same problem also on a '99 UK Focus. I tried resetting the fob to
the car using the "ignition on/off" method with no success. (Google in this
group for details). As a dealer sourced and programmed key was about 100UKP
I decided to manage without.
Some time later I needed a CR2032 battery whilst fixing a friend's door bell
so I used the one from my fob. About a month later I was scrapping a
computer motherboard when I realised it used the same battery, so I removed
it and put it in my fob. To my complete suprise my fob then worked! In fact
it seemed to work better than when the car was new. That was about two
months ago and it is still working.
I can't offer any explanation for this, or suggest how long it would be
necessary to leave the battery out for, but maybe it is worth a try?
Of course I may have tempted fate by posting this and it will never work
I've noticed the same thing with mine. After taking the battery out and
giving the connections a quick clean and sticking the battery on a battery
tester, it's been back to normal. Battery been out for no more then ten
Can't offer an explanation either. Though I have noticed with alkaline cells
used in low drain situations, that sticking them on a tester or *briefly*
short circuiting them restores them to health when they appear to be dead
but you know they aren't because they're relatively new. Though of course
you wanna be careful short circuiting batteries...
Well, yes but the OP mentioned that he had replaced the battery with a new
one. I had tried two new ones in mine from different sources. Oh, and the
Focus key fob battery is definitely *not* an alkaline cell!
Thanks everyone for the advice. I've tried removing the battery, cleaning
the contacts, and even breifly shorting the battery termials, but it makes
no difference. The battery still has plenty of charge, so that's not the
I'd like to try resetting the key fequency with the 'ignition on off method'
that is mentioned by an earlier poster. Does anyone know how to do this?
I've had no luck finding instructions on google.
This only works for certain remotes - there are at least two types. Mine is
a Siemens one, although I don't know if that is relevant.
Get in car and close all doors
Turn the ignition key from fully off to fully on 4 times within 6 seconds.
Stop at fully off position.
The door open/lights on alarm will "bong" once.
Press the open button on the fob.
The alarm will sound once more.
The procedure is complete.
Not that although I tried this half a dozen times or more, it made no
difference to my fob. When the fob finally stopped working altogether I
didn't get the second alarm bong.
If you do get it working by this means, or by my other suggestion of leaving
the battery out for an extended period, please post back and let us know.
Thanks for this, it seems to work!
Having followed the ignition on off method of resetting the key (Siemens
type), I can now remotely lock and unlock my Focus from about 10 metres
away. I guess the key must have been transmitting slighty off the optimum
Sounds interesting, got used to the 2m max, a new battery
improved things (shortly). If it wouldn't only allow me to close
all 4 windows remotely but although open them, longer distance
(10-20m) would be great.;)
As the Top Gear TV program in the UK once demonstrated - walk away from
the car until the remote stops working - walk a tiny bit further - now
hold the remote to your head with your mouth open, facing the car. You
will find that the remote now works over a much longer distance :)
Worth a try I suppose, but isn't that only telling the car to recognise the
key? I could well be wrong, but I can't imagine it actually makes any
changes to the operation of the key.
Oh I've just remembered that one of the other things I've tried with mine
was to bend the terminals up slightly so they make better contact with the
battery. Being careful not to snap them off of course. As mentioned earlier,
this is only a suggestion based on my own observations!
Indeed. Perhaps I could have phrased my last post better. The battery is of
course a Lithium one. I was offering the observation that I've seen problems
with alkaline batteries before and it might be something to try, as it's one
of the things I did and *may* have contributed to the solution. Though of
course in essence I will never know! Lol. I've had the OP's problem with
brand new batteries too, and have never found any concrete explaination as
to the behaviour.
Same thing happened to me too...the remote got progresivelly weaker and one
day it stoped. took it to a auto alarm shop. they re-programmed the remote
(it was out of its operating frequency range) for free..
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