False Alarms

Newbie Posts : 8 Join date : 2010-07-20

Hi all. My Zafiras alarm has started to go off for no reason especially when its hot. Any ideas pls. Can I disable it without affecting the central locking? Cheers

Admin Posts : 1890 Join date : 2009-11-23 Age : 46

it maybe going off because the car battery maybe on its way out mine used to do untill i changed mine.

hi and welcome to the bus crew

Newbie Posts : 8 Join date : 2010-07-20

Thanks for the welcome! Do you mean the main car battery or the alarm battery back up?

Newbie Posts : 36 Join date : 2009-11-25 Age : 44

Hi seagull, i had the same problem, changed the battery back up and it kept doing it!! turned out it was bad connections on the main battery, gave them a clean and it sorted it!! good luck regards chris

Admin Posts : 1890 Join date : 2009-11-23 Age : 46

yeah the main battery bud just have play round first with the connections

Newbie Posts : 8 Join date : 2010-07-20

Thanks for the advice guys. I will first have a play with the battery connections and see what happens. Cheaper than buying a new car battery!! I will let you know what happens. Cheers.

Admin Posts : 1890 Join date : 2009-11-23 Age : 46

any time bud

Group Buyer Posts : 959 Join date : 2009-12-02 Age : 44

common prob is the battery back siren or bonnet sensor

Admin Posts : 1354 Join date : 2009-11-24 Age : 67

sometimes on very hot days mine would go off...but only on very hot days...also make sure that no spiders or flys are near the interior sensors..

if it happens again, try turn off the interior sensors (by holding in the two front light switches at same time ) and see if it goes off again..if so you might need new batteries in your sonic alarm..or a new alarm ..

Admin Posts : 292 Join date : 2010-07-04 Age : 47

Another one is check the rear quarter windows and see if you have the alarm strip in them. These expand and contract causing false alarms and really easy to fix.

Open up the stowaway compartments in the boot and stuff your hand in there and feel up the corner of the window and pull off the connectors. Fit each connector to either side of a 20amp blade fuse and tape up with electrical insulation tape. Job done.

I did this to both my windows, took less than half an hour and stopped the false alarms.

Admin Posts : 1354 Join date : 2009-11-24 Age : 67

dreamvictim wrote:: Another one is check the rear quarter windows and see if you have the alarm strip in them. These expand and contract causing false alarms and really easy to fix.

Open up the stowaway compartments in the boot and stuff your hand in there and feel up the corner of the window and pull off the connectors. Fit each connector to either side of a 20amp blade fuse and tape up with electrical insulation tape. Job done.

I did this to both my windows, took less than half an hour and stopped the false alarms.

handy bit of info , must remember this..just in case.. False Alarms Icon_smile

Admin Posts : 292 Join date : 2010-07-04 Age : 47

Yes Sterl

It's the first thing I would check when experiencing false alarms because it's so easy and cheap to do.

Shall I post up a how to do you think?

Member Posts : 127 Join date : 2010-07-20 Age : 38

I was having the same issues only thing was mine was going off in the middle of the night waking the neighbours up so as you can imagine not too happy. Played with th connections and hey presto no more false alarms

Handy to know about the rear quartr glass too

Admin Posts : 1354 Join date : 2009-11-24 Age : 67

dreamvictim wrote:: Yes Sterl

It's the first thing I would check when experiencing false alarms because it's so easy and cheap to do.

Shall I post up a how to do you think?

yes by all means post up a how to... in the HOW TO section , i think it might help people sort a few alarm faults..

Newbie Posts : 8 Join date : 2010-07-20

Hi guys. Sorry have not been around for a while. Thanks for all the advice. Cleaned up the battery connections but no difference! Thing is it now goes off in any weather but only when driven! If I drive it, leave it unlocked for an hour or two and then lock it's ok. But if i lock straight after driving it goes off after about half an hour! Strange!

Merchandiser Posts : 768 Join date : 2010-03-09 Age : 36

it sounds like 1 of the sensor's are dodgy in side the car, it thinks there is something moving inside, but there isnt.

failing that a faulty earth on an alarm makes it go off. False Alarms Icon_biggrin

Newbie Posts : 8 Join date : 2010-07-20

Hi. Thanks for all the advice. I think it was the back up battery as I have disconnected it and for about two weeks now have not had any false alarms! Hope not speaken to soon thou! cheers

Admin Posts : 1354 Join date : 2009-11-24 Age : 67

but surely if you have disconnected the sonic alarm that why you cant hear it going off..

but you havent sorted the problem..a new sonic alarm fitted and coded to your car cost about £120 from vauxhall..if you cant replace the batteries yourself which is quite hard..there is a how to on another site somewhere..

but i would rather fork out £120 to have my car safe and alarm going off if nessesary than find my Zafs been stolen..

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