Problems With Car Alarm

[handicap7]

Over the past couple of weeks my wife and i have been having intermittent problems with our Toyotas. My wife has a Yaris without an alarm but with remote central locking, i have a Corolla with remote central locking and factory fit alarm. My wife came home from work and parked her car on the drive as usual got out and pressed the key fob to lock the door and nothing happened the light on the fob was working but it would not lock the doors remotely. My wife thought that it may be the Battery in the fob running down as she has had the car for just over 2 years, she then tried the spare and still nothing. I came home and had excactly the same problem, i could lock the doors manually but not use the remote fob. My biggest concern is that i am not sure that just locking my doors manually will activate my alarm.

I beleive that the problem is that someone locally has fitted something in there house that interferes with our fob frequencies??

Has anyone heard of this before? do they know of a solution?

Regards

[Armz]

Either faulty unshielded electric gates, dodgy automatic garage door signal interferance.

I've also heard of Tesco car parks use magnetic type wave devices for their trolleys.

So my guess is somebody's got a faulty electric gate or garage door in your area. Probably not far away, a few doors either way or across the road. I've recently had full electric gates all round installed at my large-ish driveways and dont have any problems at all with around 6-8 different type cars using the driveway all at different times. No problems. Neighbours haven't complained either and they have similar style gates installed aswell.

If you look on the back of your keyfob it shows the freq the alarm works on. Should be around 40-400mhz range i think.

Cheers

Armen

[MarcTS]

I heard of this on these forums a while back and the person actually traced it back to a door bell. Their neighbour had just installed a cordless door bell and it was set to the same frequency as the poor fellas car alarm. A polite word later and they switched their doorbell to a different frequency and solved the problem.

[handicap7]

I heard of this on these forums a while back and the person actually traced it back to a door bell. Their neighbour had just installed a cordless door bell and it was set to the same frequency as the poor fellas car alarm. A polite word later and they switched their doorbell to a different frequency and solved the problem.

Thanks MiniMarc

You were right on the button(pardon the humour)it was my next door neighbour, her brother had fitted a new cordless doorbell about a fortnight ago. It was okay at first but then she said it just kept ringing on its own so she took the Battery out of the door chime inside the house, the actual culprit was the bell push fitted to the outside that was stuck on permanantly transmitting.

I am going to buy her a new doorbell at the weekend and make sure it is set to a different channel(much cheaper option than a new car alarm).

Thanks again

Handicap7

[MarcTS]

Glad it was the solution in the end and not a problem with the actual alarms :)

You do wonder though, whether car theives know about door bells. Seems like it would be easy enough to sit in a car park with one of these jammed on, and when someone walks away from their car and thinks they have locked it. Then they have got a nice unlocked car to play with.