V90 remote locking unwell

ns1234567 · Apr 28th, 2018, 12:33

Hello

I wondered if anyone could suggest please a remedy for the locking system which has progressively failed and now not working at all - and the other day whilst driving the flashers came on and were stopped by pressing the fob ( a sort of de-activation of alarm process).Here is a photo of the fob for identifying the system.
Many thanks

v90 fob.JPG

jpliddy · Apr 28th, 2018, 17:56

hi there will be a inline fuse some where try disconnecting it that should isolate alarm for now and car will be able to drive just have to use keys to open door . i did this with my 940 tdi a guy on here advised me . worth a try till you get some more info on the problem

Laird Scooby · Apr 28th, 2018, 18:16

When did you last renew the batteries in the fob? I don't know what Volvo systems are like but i've known others that when the batteries in the fob grow weak, the transponder ID isn't sent correctly so it shuts down.

Might be worth checking before you start delving more deeply into it.

Also with some Fords from about 96-98 ish onwards, the transponder in the key can fail causing immobiliser problems. As Ford owned Volvo from (i think) 1999 and had a large amount of shares and influence for about 3-4 years prior to that, it could be worth trying your spare key or getting the key checked.

ns1234567 · Apr 30th, 2018, 10:45

Thanks Dave

I think that may have happened - do you know how to wake up the transponder..?

Laird Scooby · Apr 30th, 2018, 11:15

Sadly no, every manufacturer has their own, closely-guarded secret methods for doing things like that and i've never known what they were.

In short, if i am right, it will probably be a "dealer only" fix unless someone else can tell you anything different.
There may be a few companies online that do it but a quick search online just now revealed a load of pointers to a dealer or independent Volvo specialists with the right gear.

They would of course be the best people to tell you if the transponder has gone weak, you could also try ebay :

https://www.ebay.co.uk/sch/i.html?_f...onder&_sacat=0

Not much to choose from though!

Good luck with sorting it anyway!

ns1234567 · Apr 30th, 2018, 13:38

Great stuff Dave am most grateful

many thanks

capt jack · Apr 30th, 2018, 14:16

Several years ago now I fitted a Hawk after market central locking kit to our S70, when the Volvo original gave up the ghost.

Two top-quality fobs, an ECU, LED and wiring loom all came in the kit with nice clear vehicle-specific instructions. DIY fitting took a couple of hours - and at best my auto-electric skills are only average.

It's worked perfectly ever since, and I'd certainly recommend it as a viable alternative to lots of chasing to get the original to work.

Jack

ns1234567 · May 1st, 2018, 11:58

Thanks Jack excellent advice

best wishes

Laird Scooby · May 1st, 2018, 13:00

I nearly suggested similar as i fitted an aftermarket remote alarm/immbiliser to my 1994 827 Sterling because the (one and) only fob i had was beginning to fail.

However my knowledge of the V90 and its alarm/immobiliser isn't sufficient to be able to suggest it - if Jack has some details as to where the wiring is that you need to splice into etc maybe he could PM those details to you to aid in fitting.

Putting them on the public part of the forum is a great idea for anyone else that has a similar problem but there are some sneaky people around that would use that information to get hold of a V90 without paying for it if you get the gist of what i'm saying!

capt jack · May 2nd, 2018, 08:13

When I ordered the Hawk system for the S70 I just asked the manufacturer for a wiring diagram specific to the car - which they duly supplied.

It really was that simple!

Fitting I think took perhaps a couple of hours. I needed to find somewhere to locate the Hawk ECU - which is little bigger than a cigarette packet, and then drill a small hole to accept the LED. For this I simply used one of the switch blanking panels. In the end I disconnected the LED because SWMBO, the regular pilot of the S70 didn't like the bright blue light!

Tapping into the hazard flasher was easy - on an S70 it simply pops out of the dash, and finding the central locking wiring was not a major issue. The Hawk product uses the vehicle's existing central locking wiring and hardware, so there's no need to be stripping door cards off.

All-in-all it was a very easy DIY project.

Jack

Apr 28th, 2018, 12:33	#1
ns1234567 Junior Member Last Online: May 16th, 2022 11:53 Join Date: Nov 2008 Location: london	V90 remote locking unwell Hello I wondered if anyone could suggest please a remedy for the locking system which has progressively failed and now not working at all - and the other day whilst driving the flashers came on and were stopped by pressing the fob ( a sort of de-activation of alarm process).Here is a photo of the fob for identifying the system. Many thanks v90 fob.JPG

Apr 28th, 2018, 17:56	#2
jpliddy VOC Member Last Online: Feb 15th, 2024 17:04 Join Date: Dec 2006 Location: stoke on trent	940 tdi auto 1995 hi there will be a inline fuse some where try disconnecting it that should isolate alarm for now and car will be able to drive just have to use keys to open door . i did this with my 940 tdi a guy on here advised me . worth a try till you get some more info on the problem

Apr 28th, 2018, 18:16	#3
Laird Scooby Premier Member Last Online: Today 09:36 Join Date: May 2012 Location: Lakenheath	When did you last renew the batteries in the fob? I don't know what Volvo systems are like but i've known others that when the batteries in the fob grow weak, the transponder ID isn't sent correctly so it shuts down. Might be worth checking before you start delving more deeply into it. Also with some Fords from about 96-98 ish onwards, the transponder in the key can fail causing immobiliser problems. As Ford owned Volvo from (i think) 1999 and had a large amount of shares and influence for about 3-4 years prior to that, it could be worth trying your spare key or getting the key checked. __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

Apr 30th, 2018, 11:15	#5
Laird Scooby Premier Member Last Online: Today 09:36 Join Date: May 2012 Location: Lakenheath	Sadly no, every manufacturer has their own, closely-guarded secret methods for doing things like that and i've never known what they were. In short, if i am right, it will probably be a "dealer only" fix unless someone else can tell you anything different. There may be a few companies online that do it but a quick search online just now revealed a load of pointers to a dealer or independent Volvo specialists with the right gear. They would of course be the best people to tell you if the transponder has gone weak, you could also try ebay : https://www.ebay.co.uk/sch/i.html?_f...onder&_sacat=0 Not much to choose from though! Good luck with sorting it anyway! __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

May 1st, 2018, 13:00	#9
Laird Scooby Premier Member Last Online: Today 09:36 Join Date: May 2012 Location: Lakenheath	I nearly suggested similar as i fitted an aftermarket remote alarm/immbiliser to my 1994 827 Sterling because the (one and) only fob i had was beginning to fail. However my knowledge of the V90 and its alarm/immobiliser isn't sufficient to be able to suggest it - if Jack has some details as to where the wiring is that you need to splice into etc maybe he could PM those details to you to aid in fitting. Putting them on the public part of the forum is a great idea for anyone else that has a similar problem but there are some sneaky people around that would use that information to get hold of a V90 without paying for it if you get the gist of what i'm saying! __________________ Cheers Dave Next Door to Top-Gun with a Honda CR-V & S Type Jag Volvo gone but not forgotten........

Apr 30th, 2018, 10:45	#4
ns1234567 Junior Member Last Online: May 16th, 2022 11:53 Join Date: Nov 2008 Location: london	Thanks Dave I think that may have happened - do you know how to wake up the transponder..?

Apr 30th, 2018, 13:38	#6
ns1234567 Junior Member Last Online: May 16th, 2022 11:53 Join Date: Nov 2008 Location: london	Great stuff Dave am most grateful many thanks

Apr 30th, 2018, 14:16	#7
capt jack VOC Member Last Online: Apr 20th, 2024 18:56 Join Date: Jun 2006 Location: Selby, North Yorkshire	Several years ago now I fitted a Hawk after market central locking kit to our S70, when the Volvo original gave up the ghost. Two top-quality fobs, an ECU, LED and wiring loom all came in the kit with nice clear vehicle-specific instructions. DIY fitting took a couple of hours - and at best my auto-electric skills are only average. It's worked perfectly ever since, and I'd certainly recommend it as a viable alternative to lots of chasing to get the original to work. Jack

May 1st, 2018, 11:58	#8
ns1234567 Junior Member Last Online: May 16th, 2022 11:53 Join Date: Nov 2008 Location: london	Thanks Jack excellent advice best wishes

May 2nd, 2018, 08:13	#10
capt jack VOC Member Last Online: Apr 20th, 2024 18:56 Join Date: Jun 2006 Location: Selby, North Yorkshire	When I ordered the Hawk system for the S70 I just asked the manufacturer for a wiring diagram specific to the car - which they duly supplied. It really was that simple! Fitting I think took perhaps a couple of hours. I needed to find somewhere to locate the Hawk ECU - which is little bigger than a cigarette packet, and then drill a small hole to accept the LED. For this I simply used one of the switch blanking panels. In the end I disconnected the LED because SWMBO, the regular pilot of the S70 didn't like the bright blue light! Tapping into the hazard flasher was easy - on an S70 it simply pops out of the dash, and finding the central locking wiring was not a major issue. The Hawk product uses the vehicle's existing central locking wiring and hardware, so there's no need to be stripping door cards off. All-in-all it was a very easy DIY project. Jack

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