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Ford Owners Club - Ford Forums > Ford Models > Ford KA / StreetKA Club
Hi guys,

I was wondering if anyone could help with a problem we have on my partners Sport Ka.

The other morning at 4am the alarm kept going off. We just opened & locked it thinking a cat must have jumped on it etc. But when my partner cam home from work that day, every time she locked it the alarm went off.

I've checked the bonnet switch, the two door contacts & also the boot catch. All seem to be in working order.

At present we've just taken the fuse out so as not to get on the wrong side of our neighbours.

Does anyone have any ideas why it would suddenly do this?


Hi and welcome to FOC. I had a problem like this on my escort van, it was an aftermarket alarm and i found that it had got wet and some water was sitting inside it, dryed it out and all worked fine.
had same with an alam myself
cleaned it out with wd40 & it worked fine for me
i placed a cover over the alarm after that & never had a problem with it.
i hope it's somthing simple for you m8.
keep us posted on what it was so it can be of use for other people on the forum
i dont know if ka's suffer the same as other models ,on the mondeo and focus the most likley suspect is the bonnett switch try disconnecting it and see if this cures your problem
Thanks for your replies guys. I tried the bonnet switch 1st. I checked it with an electrical tester & also disconnected it but the same happens. It sounds like the siren is mounted somewhere near the rear underneath the car. I shall have to have a look when the weathers brighter. If all fails i might just beat it with a hammer until it wails no more!
had the same problem once turned out to be some insect flying around inside the car setting the sensor off

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