Car alarm sensitivity

Rob

Well-Known Member
Mar 1, 2010
3,019
16
38
Bristol
Garage
I never use the alarm fitted to my 80 as it keeps going off. I have read somewhere that it may be possible to adjust the sensitivity of it. I have what seems to be a factory fitted alarm.
 

Gav Peter

Well-Known Member
I am in england
Mar 1, 2010
4,843
9
38
The Wirral, NW Ingerland
I can't help - sorry dude. But if you do find out what to do, I'd like to know... MUX's alarm goes off even if I leave the window down an inch... Its like a hair trigger!!!

OT, tick tick tick tick... ;-)
 

Chris

Super Moderator
Supporter
I am in europe
Feb 24, 2010
17,226
3,972
113
Chesterfield, Derbyshire
Garage
Rob, my control box is under the passenger seat I think. I came across it recently. Mine is the TVSS system. It's only the knock sensor I think that is adjustable. Opening a door for example is just a straight signal.

C
 

Julian Voelcker

Well-Known Member
Mar 5, 2010
313
4
38
Herefordshire, UK
Rob,

Any ideas what is triggering the alarm?

The usual problem is air pressure issues as the vehicle warms up and cools down. If you can fiind the alarm unit then you should be able to adjust it.

Usual locations are under the passenger seat, under the area around the gear stick or behind the dash by the glove box.
 
Don't like the adverts? Remove them by becoming a supporting member.   Click here

Rob

Well-Known Member
Mar 1, 2010
3,019
16
38
Bristol
Garage
I cant say what is causing it to go off, but once it starts to go off then it keeps going off every 20 or 30 min even if I reset the alarm and open and close the door. My theory is insects, air pressure build up sounds possible too. Does the box say alarm on it? If not how will I know its the alarm?
 

Rob

Well-Known Member
Mar 1, 2010
3,019
16
38
Bristol
Garage
DSC08359.JPG

DSC08358.JPG


Is there a dial I can turn on the alarm box? Any recommendations on what setting I should use or do I resort to trial and improvement?
 

Rob

Well-Known Member
Mar 1, 2010
3,019
16
38
Bristol
Garage
Found it, it was near the handbrake between the seats. There were a couple of boxes with TVSS written on it which I assume means Toyota Vehicle Security System. One had a rubber grommet which when removed gave access to an adjusting dial. Using a small flat screwdriver I turned it down to "minus" and lets see what happens. So far it has lasted 1 hour without going off :dance:
 

Rob

Well-Known Member
Mar 1, 2010
3,019
16
38
Bristol
Garage
Well it lasted the night without going off, but now I have to keep turning it up until it starts going off again...
 
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock    No Thanks