2001 S80 T6 Siren Module 9452709 Replacement/Repair - How To Topic is solved

CDN XC90 · Post by **CDN XC90** » 15 Nov 2019, 07:21

I just ordered this battery off AliExpress I expect it should be a drop in replacement.

Bustedknuckles · Post by **Bustedknuckles** » 13 Jan 2020, 20:11

I just got done with this repair by following this how-to on my 2004 XC90. I had the warning notification on the dash and an inoperable sunroof. I put a new battery in a siren out of a 2005 XC90 in the junkyard. Now there’s not a notification and the sunroof works! I used the battery from battery space.com (now it’s available on Amazon of course). All your info is much appreciated!

Post by **ndphotonl** » 14 Jan 2020, 13:01

Hmm, seems like a good fix! Thanks for the tip

floydtheblackdog · Post by **floydtheblackdog** » 29 Aug 2020, 13:03

can anyone tell me what the proper resistance should be across the terminals of a good module? Would like to test before breaking it apart.

jmorse937 · Post by **jmorse937** » 23 Nov 2020, 20:22

Just completed this repair on a 2003 S80, was a perfect description. Made it easy to handle! Thanks!

Post by **cn90** » 28 Apr 2022, 20:31

Question: Once you cut the 2 halves open, how do you put it back together?
Silicone caulking???

Post by **cn90** » 28 Apr 2022, 21:02

bleubistro wrote: ↑07 Jul 2019, 18:27 Simply unplugging the siren module worked for me (error message gone, moonroof working again). 2006 XC70. The only thing I would add is that drilling out the rivets wasn't so simple in my case because they just kept spinning in place. I had to use pliers and brute force to pull them out. Otherwise, I was able to fold back enough of the wheel well plastic and easily unplugged the siren using a flathead screwdriver. Error message re alarm service required and non-functional moonroof issues immediately solved. Hopefully the issue does not recur.

I am thinking:
- Remove RF wheel, support by jackstand.
- Remove the 10-mm plastic nuts, don't remove the rivets.
- Peel the plastic liner back enough to disconnect the alarm module.

Does that sound correct?

Post by **MoVolvos** » 28 Apr 2022, 21:19

cn90 wrote: ↑28 Apr 2022, 20:31 Question: Once you cut the 2 halves open, how do you put it back together?
Silicone caulking???

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You'll have to use a rubber band to hold it till it dries. I am using a little light sprinkle of baking powder on the seam then super glue.

*

Post by **cn90** » 29 Apr 2022, 10:40

Can someone give an update on battery brand (Varta vs Chinese Battery on ebay)?

What brand/type that allows a direct dropin w/o too much soldering etc.)?

Post by **cn90** » 29 Apr 2022, 21:38

A quick question: once you fix the problem (with either a brand-new siren module or new battery etc.)...

Do you need to use VIDA to clear the error message on the dash or it goes away by itself?

2001 S80 T6 Siren Module 9452709 Replacement/Repair - How To Topic is solved

Re: 2001 S80 T6 Siren Module 9452709 Replacement/Repair - How To