Volvo S60 V70 XC90 Alarm Siren Fuse 2001-2004 

I have the same issue, have you gotten anywhere on the issue?

If indeed the drain cause was the siren, then you should be fine once the fuse is removed. Of course, there are other possible causes of current drain, but the siren is usually the #1 culprit. See in the video description if you don't find the fuse in the side panel, 2005-on cars have a different location under the dash

See on the panel sticker for description : only the siren unit itself. Btw, my corner lights didn't flash when locking the car, only the red dash LED would start blinking - if it doesn't, one of the microswitches got stuck - either doors, trunk or hood ones

I just checked my 2005 s60 doesn’t have the fuse for alarm. There was only 9 fuse. I didn’t see fuse for alarm

It's possible Volvo did some changes from 2005-up cars. You can still just disconnect the alarm siren (but need to detach the wheel liner). This way you don't let the siren drain the car battery.

Peppermint thank you

Make sure first the fuse for the alarm siren is in place, fuse panel at the end of the dash near the driver's side with the door open (Left hand driving cars). If the fuse is good, it means the alarm system does not arm when the car is locked. Usually the reason is one of the alarm system switches is faulty: there is a switch at each door, and one at the hood and trunk lid. Usually it's the one at the hood that goes bad, it's located at the left hinge (on the air filter side).

@@Peppermint1 Thank you very much

@@Peppermint1 I want to send you a picture of the switches under the hood, not sure which one to check exactly?

@@adelel-mallahy3820 See this video

Dash LED and flashing lights are related to the alarm system - not affected by failed siren. The siren module is only for the sound. Try first removing the siren fuse.

First time I had a bad siren alarm module on my 2002 V70, I replaced the entire unit with a new part from Volvo. That was about 8 years ago. Now it's happening again. I'm a see if I can rebuild my old unit with a new battery which I saved. The first time this happened my sunroof would not work and that was a huge motivator for me to solve the problem. This time around, my sunroof seems to be working, at least for now. I would also recommend pulling the fuse, for me that at least stopped the alarm from going off randomly in the middle of the night which happened three times last night.

See video description section