Corrolla Alarm System Help

[Corrolla 1999]

my alarm on my corrolla started to go off by itsellf without a reason since last week so i checked all doors boot bonnet everythings closed properly still went off so i checked the manual book nothing there accept might be somthing called tvss system i managed to takes if off that system but still the same problem just goes off by itself every ten or twenty mins i have tried to do a manual lock as well with car key via door lock so it wont activate the alarm but still goes off and normally the hazard lights flash when alarm is activated but this time it just alarm siren goes off by itself all so somtimes when i press the lock or unlock button on the key fob alarm keeps on going the door locks work every time so i guess it can't be out of sync anyone have idea what this might be or way around the alarm system where i dont have to pull the fuse for the dome thing cos it takes out the cd player too its a 1999 corrolla 1.6 gs with manufacture alarm

[T600]

Faulty or incorrectly adjusted bonnet sensor is common on rollas, though particularly the later models.

Also very common cause on the Celica with that alarm system is keys or coins left in either the drinks holder or ashtray; remove all metal objects from anywhere near the centre console or the dash.

Also check your door and boot sensors by checking the interior light goes on/off when doors opened and closed.

[Corrolla 1999]

Faulty or incorrectly adjusted bonnet sensor is common on rollas, though particularly the later models.

Also very common cause on the Celica with that alarm system is keys or coins left in either the drinks holder or ashtray; remove all metal objects from anywhere near the centre console or the dash.

Also check your door and boot sensors by checking the interior light goes on/off when doors opened and closed.

i know my bonnet sensor is ok i checked it out reading on here few days ago located the sensor then press it down while i armed the alarm still went off gonna give the coin thing ago got more than a few change in there check it out in the morning

[Corrolla 1999]

Faulty or incorrectly adjusted bonnet sensor is common on rollas, though particularly the later models.

Also very common cause on the Celica with that alarm system is keys or coins left in either the drinks holder or ashtray; remove all metal objects from anywhere near the centre console or the dash.

Also check your door and boot sensors by checking the interior light goes on/off when doors opened and closed.

i know my bonnet sensor is ok i checked it out reading on here few days ago located the sensor then press it down while i armed the alarm still went off gonna give the coin thing ago got more than a few change in there check it out in the morning

update removed coins and stuff still not worked i think it might be faulty siren or siren Battery now i just gotta find the darn thing and rip it out

[mat_at_home]

Faulty or incorrectly adjusted bonnet sensor is common on rollas, though particularly the later models.

Also very common cause on the Celica with that alarm system is keys or coins left in either the drinks holder or ashtray; remove all metal objects from anywhere near the centre console or the dash.

Also check your door and boot sensors by checking the interior light goes on/off when doors opened and closed.

i know my bonnet sensor is ok i checked it out reading on here few days ago located the sensor then press it down while i armed the alarm still went off gonna give the coin thing ago got more than a few change in there check it out in the morning

update removed coins and stuff still not worked i think it might be faulty siren or siren Battery now i just gotta find the darn thing and rip it out

I am having exactly the same problem with my mum's R-reg rolla, did you manage to fix your problem ....

[Corrolla 1999]

no i could'nt get it sorted did'nt fancy taking it to dealers to be charged for an a over priced charge for a siren so i just unpluged the wire plug out rather than the dome fuse which takes out the cd player and interior lights and remote locking if want to locate the siren you'll find its under the water bottle for the wipers to get acess your gonna have to take off the plastic cover under the wheel arch then just unplug it, if you find out whats the problem let us know cheers

[ae102]

my alarm on my corrolla started to go off by itsellf without a reason since last week so i checked all doors boot bonnet everythings closed properly still went off so i checked the manual book nothing there accept might be somthing called tvss system i managed to takes if off that system but still the same problem just goes off by itself every ten or twenty mins i have tried to do a manual lock as well with car key via door lock so it wont activate the alarm but still goes off and normally the hazard lights flash when alarm is activated but this time it just alarm siren goes off by itself all so somtimes when i press the lock or unlock button on the key fob alarm keeps on going the door locks work every time so i guess it can't be out of sync anyone have idea what this might be or way around the alarm system where i dont have to pull the fuse for the dome thing cos it takes out the cd player too its a 1999 corrolla 1.6 gs with manufacture alarm

i had a similar problem on a carina e, turned out the Battery wasnt fully charged.

[TheSpannerMonkey]

is it the non vvti corolla, i have had problems with mine, first it kept going of for no reason, which turned out to be a loose alternator belt, then the remote stopped working, which was the Battery in the fob, and a couple of times i had to resetthe remote (hold both buttons together till the hazards flash)

not sure what you mean by the tvss system thing tho cos tvss is toyota vehicle security system, its the whole alarm, also if it is an earlier corolla the alarm shouldnt activate on the key, only the fob, not sure on the later ones though, the coin thing in the celicas was on the later alarm where the pot everyone put coins in is directly above the radar sensor, if it is a later alarm, the radar sensors do have a habit of being set to high, might be worth checking

if you do have the later system then there is a procedure to tell what set the alarm of last, it requires lots of opening and shutting of doors, but as long as you can open the door without setting the alarm of it will tell you whats going wrong, might have a print out of the procedure, will look for it

[Corrolla 1999]

well i know my car batterys fine cos the bloke who i bought it off bought me new Battery from Halfords and installed it for me i replaced the fob batterys still the same thing after resyncing the fob alarm just went off the thing is it was fine for a month before i sent it to a garage for a service after that it just kept going off not the the mechanic will ever admit it so i kinda think what spannermonkey saying is exactly whats happened here accept i dont know whats causing it even looking at the engine oh according to the manual book the tvss system somthing to do with inside the car alarm sensor if in case you gotta leave your pet in there and it automatically locks your doors after 30 secounds thats if the keys are'nt in the ignition you can switch it on and off and just have stardard alarm

[mat_at_home]

Hi, my fault was the car Battery, one of the cells had failed, Halfords tested it and replaced it under the guarantee, it was only 9 months old!! The alarm has been silent since!! Happy days!

Thanks for all the advice!

Mat.

:D