MR2 Roadster Owners Club

The Workshop => Audio / Security / Electrical => Topic started by: Anonymous on July 19, 2013, 20:41

Title: Hot Weather alarm problem.
Post by: Anonymous on July 19, 2013, 20:41
With Summer finally arriving here in Vancouver I am suffering a recurrence of a problem that plagued me last year. The alarm in my 2004 Spyder goes off when I lock the car and leave it on warm, sunny days. Not a problem when it is raining or cloudy. This happened last year but only during the Summer.

If I leave the car unlocked, even in the hot sun, the alarm does not go off. I am not comfortable with leaving the car unlocked, though. I did some research last year and came across an explanation somewhere that the heat causes the doors to expand and this sets the sensors off.

Is there a way to disable the alarm? What does that alarm button to the left of the steering wheel do? It does not seem to have any effect. Is there a fuse I can disconnect or can I disconnect the sensors? I want to be able to drive the car without this annoyance.

The battery was recently checked so that is not the problem.

Thanks for listening!

alan
Title: Re: Hot Weather alarm problem.
Post by: Wabbitkilla on July 19, 2013, 20:56
Have you tried clicking the arm button three times. This turns off the interior air density sensing. If it's ok then I recommend you adjust its sensitivity.
Title: Re: Hot Weather alarm problem.
Post by: Anonymous on July 19, 2013, 21:03
Thanks for the suggestion. I will give it a try and let you know what happens. How is the sensitivity adjusted?

alan
Title: Re: Hot Weather alarm problem.
Post by: Anonymous on July 19, 2013, 21:27
Thanks for the suggestion. When should I press that button? With the engine running or off? With the key in the ignition or out? I know I have pressed that button but maybe not at the right time.

alan
Title: Re: Hot Weather alarm problem.
Post by: Wabbitkilla on July 19, 2013, 21:32
The arm button on your keyfob?

Obviously when you're out of the car, the indicators will give an extra long flash.
Title: Re: Hot Weather alarm problem.
Post by: uktotty on July 19, 2013, 23:48
When I had this problem I bent the sensor up by 2mm which then is not affected by the heat as the metal expands.
Title: Re: Hot Weather alarm problem.
Post by: ray835 on July 30, 2013, 21:30
whereabouts is the sensor fitted.........