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

[OSDwasFun]

Here's a pic of the siren's code displayed on my BSR PPC diag tool. Only cost me $200 on eBay. Dealers charge a min of $50 to clear codes and I've already used it about four times.

I also replaced the siren module with this procedure but also got false alarm trips. The BSR PPC2 tool is no longer available, and the dealer wanted $350 just to look at the codes (normally it's $250 but because the car was over 10 years old they added $100).

So for that price I bought a BSR PPC3 reader from GenuineSaab.com as it can read all codes for my '09 VW as well as the S60.

http://en.bsr.se/product/ppc_3_diagnostic_system_505150

The Chinese knock-off VADIS readers need Window XP Pro service pack 3 (that Microsoft will stop supporting next month) so the PPC 3 with its ability to read the VW codes seemed like a better bet, especially if I don't keep the S60 for more than 3 or 4 more years.

Sure enough, I had the UEM 0004 code which I reset with the PPC 3. But there was also two codes for a motion sensor internal fault (UEM 0013 and UEM 000A). I cleared all the codes and they seemed to go away. Seems fine so far (but I just did it last night)

Fingers crossed I don't have to worry about this anymore.

[Danilosilni]

Hi guys, first i would like to thank the site and all the extremely helpful people on here sharing priceless information.

This whole siren module write up was a very detailed and easy to do, but i ran into a problem. When i took apart my module, i only saw a disconnected negative terminal and acid ridden bursted battery. So i replaced with the x2 battery from dealxtreme and went along with the repair. When the battery came in and i soldered one neg to one pos in a series and connected it to the pcb board, i then noticed corrosion on the board which i somehow missed before. Do you guys think i need a new module? Can this be cleaned? because when i connected everything and installed back on the car (battery discon then the lock/unlock x3) the alarm message still would display.

https://www.dropbox.com/s/aqjhv1jfofs05 ... 281%29.JPG


https://www.dropbox.com/s/eaxgh6870kiz5 ... 281%29.JPG


Any help or suggestions would be greatly appreciated. Thanks!

[BradF80]

I would say that board is cooked. There's quite a few components that were damaged by the corrosion.

Battery acid is a nasty chemical. I find it surprising that engineers even thought that setup would last lol

[Volvo_POS_car]

This is a great thread, I just encountered the same problem. If I may point out to some earlier posts, I highly recommend not to replace the battery with another battery of different chemistry (e.g. Lithium type) Not only the charging circuit is meant and designed to work with NiMh only but more so Lithium batteries do not have a long life expectancy when sitting fully charged while exposed to summer temperatures. Also these Lithium Ion Batteries have the nasty habit of having one cell overcharged if no active cell balancing is employed. By the image posted by some user, I believe this will create trouble for him again soon.
I may attempt to replace the battery with a large capacitor instead so this hopeless swedish amateurish design is going to be once and for all maintenance free. Needless to say I am not a fan of this automotive brand (anymore) when it is time for me to part with my POS S60 there will be other more reputable brands to choose from.

[matt5112]

This is a great thread, I just encountered the same problem. If I may point out to some earlier posts, I highly recommend not to replace the battery with another battery of different chemistry (e.g. Lithium type) Not only the charging circuit is meant and designed to work with NiMh only but more so Lithium batteries do not have a long life expectancy when sitting fully charged while exposed to summer temperatures. Also these Lithium Ion Batteries have the nasty habit of having one cell overcharged if no active cell balancing is employed. By the image posted by some user, I believe this will create trouble for him again soon.
I may attempt to replace the battery with a large capacitor instead so this hopeless swedish amateurish design is going to be once and for all maintenance free. Needless to say I am not a fan of this automotive brand (anymore) when it is time for me to part with my POS S60 there will be other more reputable brands to choose from.

All you have to do is unplug it and it can no longer interrupt the canbus communications. You get a warning before you start the car, and it goes away after you start it. Or for $30 you can have the alarm "removed" from the system and it no longer warns you.

Every brand is going to this style of networked module communication, you're not going to escape it, or problems of any kind by going to any other brand. Look at all of the recalls lately, and then consider all of the issues that recalls are not being issued for. Many items just get put under warranty only if the customer complains about it, but otherwise are never mentioned to the customer.

Cars are made by people, and people have to come up with new ways to reinvent the wheel (see maintain employment). Those designs are also flawed because they're by people.

You're fooling only yourself if you think one brand is better than another.

[Volvo_POS_car]

Hi Matt,


Thanks for trying to help me out.

Well if this is true,

All you have to do is unplug it and it can no longer interrupt the canbus communications. You get a warning before you start the car, and it goes away after you start it. Or for $30 you can have the alarm "removed" from the system and it no longer warns you.

then what is the point of having this secure screw then, if simply the module can be unplugged ?!

Anyway I understand that in modern cars I may not be able to 'escape' this 'new' technology. However, if it was not for these design amateurs at Volvo this actually would be a great car / brand to own. I still have a very bitter aftertaste with this brands after sales experience at my stealer as the local volvo service people there are hopelessly incompetent, superficial and lazy. I understand they (stealer) does not want to sink in funding to keep his stuff trained and motivated. Perhaps that is a general industry trend, I am not sure but I experienced this for the first time and I am quite disgusted with this brand. So much so that I will bend over backwards as much as possible to avoid funding this sad swedish operation any longer.

Other brands I owned before did not exhibit such sub-basic electrical failures, nor did they had any transmission issues whatsoever, sadly tho it appears the people at the volvo design office have not much experience on how to design a cars transmission or electrical / electronics systems such that they are reasonably reliable.

I have to admit, I bought this S60 in a moment of dilution that this would be a reliable product / brand, boy not in my wildest dreams did I ever imagine what maintenance nightmare I signed up to. Needless to say this is my very first and very last Volvo I will ever own.

[turbotim2]

Anyway I understand that in modern cars I may not be able to 'escape' this 'new' technology. However, if it was not for these design amateurs at Volvo this actually would be a great car / brand to own. I still have a very bitter aftertaste with this brands after sales experience at my stealer as the local volvo service people there are hopelessly incompetent, superficial and lazy. I understand they (stealer) does not want to sink in funding to keep his stuff trained and motivated. Perhaps that is a general industry trend, I am not sure but I experienced this for the first time and I am quite disgusted with this brand. So much so that I will bend over backwards as much as possible to avoid funding this sad swedish (Its a Chinese brand now) operation any longer.

Other brands I owned before did not exhibit such sub-basic electrical failures, nor did they had any transmission issues whatsoever, sadly tho it appears the people at the volvo design office (The transmissions are Aisin/Warner, not Volvo designs) have not much experience on how to design a cars transmission or electrical / electronics systems such that they are reasonably reliable.

I have to admit, I bought this S60 in a moment of dilution (I believe you were "delusional" not "dilution") that this would be a reliable product / brand, boy not in my wildest dreams did I ever imagine what maintenance nightmare I signed up to. Needless to say this is my very first and very last Volvo I will ever own.

I believe you would be better served by an ambiguous, lifeless, classless, simple mode of transportation like a Honda or Toyota.

And just so you know, I am on my last Volvo too.

[matt5112]

Hi Matt,


Thanks for trying to help me out.

Well if this is true,

All you have to do is unplug it and it can no longer interrupt the canbus communications. You get a warning before you start the car, and it goes away after you start it. Or for $30 you can have the alarm "removed" from the system and it no longer warns you.

then what is the point of having this secure screw then, if simply the module can be unplugged ?!

What car thief is actually deterred by an alarm?

You have to take the front tire off, then peel back the fender liner just to get to the siren module. If that amount of work goes unnoticed, then the alarm going off would also be unnoticed.

The perfect car concept is a pipe dream. Good luck.

[Volvo_POS_car]

Hi turbotim2,

yes, I am aware that this fine brand is now in Chinese Hands. However at the time of purchase of my S60 AWD POS it was not, therefore this is a Swedish story. I don't care really if this sad brand sub contracts its transmission design if they're own design clowns can't do it. They tarnished the reputation they had. Do I care, No. Yes, I was delusional when purchasing this thing. I apologize English is not my native language, but German is. I guess my expectations when purchasing this deficient unit were too high. I am not sure how you see this but in my books a stupid alarm system has got to be maintenance free. When looking at the posted images of the board it stands out to me that the design clowns at volvo have no concept of conformal coating a CCA that is been operated in a harsh environment. Perhaps they should study a bit more before continuing these design debacles. Or maybe someone was just trying to save a few cents per unit so that a generous bonus for someone upstairs for a job well done could be paid. Anyway the next car I will own is going to be German made, no more experiments for me, I am done with this brand.

[turbotim2]

Oh yeah, the S60's are made in Belgium actually. And you'll find a plethora of Bosch parts under the hood, including the alarm system, straight from your home country. In fact you can probably use your old S60 for parts when you buy a VW, Seat, Audi, Bmw or whatever. Good luck!