Alarm problems

g4gvb · Post by **g4gvb** » 21 Mar 2011, 11:19

Hi
Can anyone help. I brought the 2001 v70 two months ago, checked out the alarm all was OK, siren worked and everything. This morning got in the car and the red LED on the dash was flashing quickly, when I put the key in and turned it I got a message "Alarm been activated, check car" There was no sign of a problem. The car ran fine, Later this morning I used the car again, this time got the message "Alarm system requires a service" I had this message every time I started the engine, it went out after a few seconds.

When I got home I checked the codes, there wasn't any showing. I tried to check the alarm system by activating it while inside, no siren, also opening the bonnet, again no siren.

My question is it the alarm battery or the siren at fault or could it be something else? I was quoted by the stealers £130 for the unit + £31.50 labour + VAT

jda2000 · Post by **jda2000** » 21 Mar 2011, 14:46

open the alarm module and check the battery and the circuit board.

usually, the problem is that the battery leaks and destroys the circuit board.

FCPEURO · Post by **FCPEURO** » 21 Mar 2011, 15:27

+1

If it did leak, you will have to replace the whole unit.

Marlin · Post by **Marlin** » 30 Mar 2011, 12:44

I had the same problem with my V70 T5 last month,I removed the siren unit and cut it open and the batteries had corroded the circuit board,I found the cheapest option was to buy a complete alarm kit instead of just the siren .The complete kit was £95 and included all the rivets and a new bonnet switch,I got mine from M R KING VOLVO which has a shop on ebay.
The new unit was fitted and no dealer programming was required and now the alarm works perfect and the alarm system service message has reset itself .

g4gvb · Post by **g4gvb** » 02 Apr 2011, 12:39

I had the dealers in Portsmouth do the job as I wanted the DRL turned off as well (£21 to turn off) They wanted to charge £156 for the siren, but when I said I would supply the kit that I could get for £91 they offered to match that price. They also did the job while I waited took about and hour altogether.

Post by **brandonbeach14** » 04 Apr 2011, 19:50

I just bought a 01 V70 2 days ago. It in great shape with no issues other than it didn't come with the remotes. Today, I am now getting a "Alarm system requires service" message with no codes showing on a reader either. Any ideas? I haven'e decided if I want to spend $300 for a remote and programming at a dealer. Thanks

g4gvb · Post by **g4gvb** » 04 Apr 2011, 22:45

Based on my experience (which is minimal) I would say your alarm battery has gone, they seem to last about 10 years. Does the alarm work at all? You can get the Siren kit over here for about £91 (145 dollars) it takes about an hour to fit. Theres a post on here that shows you what you need to do, or you could take it to the shop.

Post by **brandonbeach14** » 05 Apr 2011, 17:57

Thanks I'll check it out. The lights flash when I lock it, but no siren chirp.

g4gvb · Post by **g4gvb** » 05 Apr 2011, 23:33

The lights flashed on mine, but there was no chirp, I don't think it does chirp. Even with the new unit in it does not chirp. Try arming the alarm then open the drivers door with the key, or open the window, arm the alarm wait 30 seconds then lean into the car through the window. When I did these tests on mine I got lights flashing, but no siren at all.

Post by **brandonbeach14** » 08 Apr 2011, 20:20

Will do. Have you ever had a CEL code #0442 come up? "Evaporative Emission System Leak Detected (Small Leak)". I saw from other posts that it may be the j hose, but it was already replaced by the dealer. I just replaced the gas cap and reset the code. I am looking for any suggestions at this point if you're aware of any. Thanks again.