A month ago I bought a Dec 1998 S70 󞩿 model]. The car sleeps in my garage, under the bedroom window (imagine how I woke up). The car has inside motion sensors in the pillars. One night the alarm went off (LOUD siren) with no apparent reason. All doors, hood, trunk, sun roof were closed/locked. There was no wind. Temperature, near 0 Celsius. It triggered a few times with from 2 minutes to half an hour intervals.

Last night the same thing happed. All the doors/... closed/locked, no wind, temperature aprox 7 degrees celsius. I have a motion detector in the garage witch triggers the garage light for 3 minutes. I arrived near the car in say 30 seconds and the light was off so I don't think that anyone was messing around (as soon as I put my hand in the garage the light turned on).

This last time I saw that while the alarm was on the LED was blinking in a very high rate (like 4, 5 times per second) Does this mean anything? Does this alarm have any LED codes (like n blinks means door entrance, x blinks inside motion, etc????)

As you imagine this is getting me mad! It only happened twice, all doors rigorously inspected, none open, all during the night, never during the day in an open garage (no doors do the garden wich is locked from the driveway.

HELP ME trying to detect the fault, please.

Many thanks in advance,
Joao Caldeira