2002 Volvo V70 Alarm Installation
Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=144700
Printed Date: May 13, 2025 at 4:38 AM
Topic: 2002 Volvo V70 Alarm Installation
Posted By: gtdms
Subject: 2002 Volvo V70 Alarm Installation
Date Posted: September 02, 2018 at 2:30 AM
Hi All,
this is my first post here so I live in uk and found this very intresting and informative forum which I am looking forward to learn and share my experiences with you.
I am considering to have an budget after market Chinese car alarm/key less entry system installed on 2002 Volvo v70. I have basic electronics background but never installed a car alarm before. Few people say that Volvos are big hassle to have aftermarket alarms installed but that potentially it is possible if the installer is good enough. As I didn't find any reference to volvos here in this forum I would like to hear from who have done sucessfully or not to share their experience here. A car mechanic told me that the car canbus wouldn't like. The factory alarm never worked in this car since I bought, alarm siren is dead and key fobs are missing prices of these parts on Volvo are much higher than a new alarm system and ther emay be a possibilty their may be something else wrong with the car so an aftermarket is a far more atractive solution . Any ideas how to do this could be done on a car like this would be much appreciated? Thanks
Replies:
Posted By: geepherder
Date Posted: September 02, 2018 at 7:09 AM
While I have only done one keyless entry on an old Volvo (don't remember year/model), see if this helps:
https://www.bulldogsecurity.com/bdnew/vehiclewiringdiagrams.aspx
https://diagrams.marktoonen.nl/printlist.aspx?MakeID=42&ModelID=18693
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My ex once told me I have a perfect face for radio.
Posted By: eguru
Date Posted: September 02, 2018 at 8:35 AM
Which brand of Chinese Keyless entry are you installing?
I am sure that some forum members will be able to help you if we have details on the hardware you are installing.
Posted By: gtdms
Date Posted: September 02, 2018 at 9:44 AM
Great. Thank you so much. it is all ready a very good starting point to have these wirings reference and colour code.
In communication with Volvo owners and experts they discouraged me to use after market alarms or parts in any kind of Volvo. As I mentioned before some people has mentioned that Volvo are particularly trick for installations. I am not sure if this is actually truth or they are just been purists who just like to use Volvo parts only and avoiding any modifications.
In fact I got particularly concerned with the fact that based on their views any other non volvo system would somehow mess up or be incompatible with the car network can bus.
Would you remember if you need to disconnect any Volvo alarm parts and which one would these be?
One of my main concerns is try to reduce the striping of internal plastic covers and triming to a minimum and therefore it would be great if any of the members which have done volvo particularly v70 before could post a pictorial on the forum as I don't actually find this info nowhere on the web.
Regarding the model to be installed on my car I have 2 options which will depend upon others opnions regaring the level of difficuty for this car. At the moment I got a keyless entry only with 2 fobs and receiver (Lanbo LB-405)this would resolve the problem of this car fobs. I would like to have this installed using the original volvo actuators. However this wouldn't be the perfect solution as the car still without any alarm.
The second option is to install again a budget chinese Alarm/keyless entry( I don't have these with me yet but it would be something very basic no remote start or anything like this). I am still divided which one I will try to install and just would like to hear from people if it is possible to have this done sucessfully without any drawnbacks. As I mentioned before volvo experts have been very reluctant about touching in the car wiring /installing any other system than originals as could potentially mess up the entire network. Even tought they know a lot about volvos I am not sure about their competence in car electrics / alarms. However If I don't find anyone who has done sucessfull which can share the info with me I would by now be also reluctant as I am not intrested to start a project that is dull to fail.
Photo of keyless entry attached now. I will post the alarm diagram soon.
Posted By: eguru
Date Posted: September 02, 2018 at 11:21 AM
There is no requirement to make any connections to the CANbus for simple keyless entry - especially since you state that the factory alarm doesn't work.
Have you read the installation instructions for the Lanbo unit? Doesn't it already contain a shock sensor and provide alarm capability - although I don't see where it is monitoring the dome light or door switches?
Posted By: gtdms
Date Posted: September 02, 2018 at 11:55 AM
eguru] wrote:
There is no requirement to make any connections to the CANbus for simple keyless entry - especially since you state that the factory alarm doesn't work.
Have you read the installation instructions for the Lanbo unit? Doesn't it already contain a shock sensor and provide alarm capability - although I don't see where it is monitoring the dome light or door switches?
I don't think this got alarm capabilities I am attaching the full paperwork from it. This is a keyless entry system only. 
Posted By: gtdms
Date Posted: September 02, 2018 at 12:11 PM
I am no expert but these people seems to be? and from what I get from this discussion there is no way around it? Even to use an aftermarket keyless entry which seems bizar to me:
https://www.volvoforums.org.uk/showthread.php?t=285669
I am not sure if that is as complicated as they make it sounds but if anyone think is just a normal installation as anyother I would like to hear from people.
As I sad I am no expert but a keyless entry system seems a simple and straight forward installation. Do I need to cut the wires from car actuators to communicate to the rest of the car and connect to the new receiver? Can I connect turning lights and horn just using cable splice? do I need to disconnect any other car original device? or leave eveyrthing as it is?
Posted By: eguru
Date Posted: September 02, 2018 at 7:50 PM
When dealing with car alarm, keyless entry, etc electronics, you are usually better off getting advice on this site than the car enthusiast forums.
From the links posted earlier by geepherder, this doesn't look like a difficult install. There should not be any need to cut wiring.
Pulling off some plastic panels is a bit daunting at first, but if you get yourself some plastic panel tools you will find it pretty easy.
Posted By: geepherder
Date Posted: September 02, 2018 at 8:35 PM
While I don't have the vehicle in front of me, it seems like the toughest part (may not really be that difficult) is running two wires into the door to control the power locks. If you can do that, the rest should be fairly simple.
An alternative would be to purchase a module from Fortin or Xpresskit to simplify your wiring. I can't attest to their reliability, though:
https://fortin.ca/en/vehicles/volvo/v70/2002-standard-key/
https://directechs.com/VehicleCompatibility?VehicleYear=2002&VehicleMakeName=Volvo&VehicleModel=V70&__RequestVerificationToken=CfDJ8KaFf5gLp3VCngv4yerkDFNfnjYwrBBYItJxu8qvTFD8djavY14A2U2G0Syq4vxrnPhK2LL4Ndy_4KaXVu8iDQNK_rPqgvhmaDE1Ore1jooRj0_JjUXiZbNQKDrb6NIArDxaPkx2uY8LRFSz1UhiRXk
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 07, 2018 at 4:43 PM
eguru] wrote:
When dealing with car alarm, keyless entry, etc electronics, you are usually better off getting advice on this site than the car enthusiast forums.
From the links posted earlier by geepherder, this doesn't look like a difficult install. There should not be any need to cut wiring.
Pulling off some plastic panels is a bit daunting at first, but if you get yourself some plastic panel tools you will find it pretty easy.
thanks for that. what sort of tools would I need?
Posted By: gtdms
Date Posted: September 07, 2018 at 4:56 PM
geepherder wrote:
While I don't have the vehicle in front of me, it seems like the toughest part (may not really be that difficult) is running two wires into the door to control the power locks. If you can do that, the rest should be fairly simple.
An alternative would be to purchase a module from Fortin or Xpresskit to simplify your wiring. I can't attest to their reliability, though:
https://fortin.ca/en/vehicles/volvo/v70/2002-standard-key/
https://directechs.com/VehicleCompatibility? VehicleYear=2002&VehicleMakeName=Volvo&VehicleModel=V70&__RequestVerificationToken=CfDJ8KaFf5gLp3VCngv4yerkDFNfnjYwrBBYItJxu8qvTFD8djavY14A2U2G0Syq4vxrnPhK2LL4Ndy_4KaXVu8iDQNK_rPqgvhmaDE1Ore1jooRj0_JjUXiZbNQKDrb6NIArDxaPkx2uY8LRFSz1UhiRXk
that sounds promissing...Ok. Now I have managed to make the car alarm siren to work, I replaced the siren with a working used one and it seems to works. The only thing I would need in this car is the fobs remote keyless entry system to work and the price for this is prohibitive by volvo. The question now is if I can install the keyless entry system which I have posted above in conjunction with the original factory fitted alarm . Someone has suggested if i do this my car alarm will start everytime i open or close the car with remote is that right? Could anyone confirm if what I would need if I would want to install the lanbo LB-405 to my car. I assume I can use the factory fitted actuators? What about the factory fitted fob receiver? Would I need to remove this this is inside the middle rear mirror I think? You mentioned I would need to wire the door? But I assume I could reach these wires from inside the car wihout have to open the door? I am attaching the full instructions of the lenbo-lb 405
Posted By: geepherder
Date Posted: September 08, 2018 at 8:06 AM
gtdms] wrote:
The question now is if I can install the keyless entry system which I have posted above in conjunction with the original factory fitted alarm . Someone has suggested if i do this my car alarm will start everytime i open or close the car with remote is that right? Could anyone confirm if what I would need if I would want to install the lanbo LB-405 to my car. I assume I can use the factory fitted actuators? What about the factory fitted fob receiver? Would I need to remove this this is inside the middle rear mirror I think? You mentioned I would need to wire the door? But I assume I could reach these wires from inside the car wihout have to open the door? I am attaching the full instructions of the lenbo-lb 405
According to the information listed on Bulldog, you should not have issues with the factory alarm if you connect to the wires at the driver's door lock cylinder, because your keyless entry will be arming/disarming the factory alarm directly. I recommend testing this first to see if it will work. Remove the door panel from the driver's door. Insert your key into the lock cylinder on the driver's door. Using your multimeter, test the wires connected to your door lock cylinder for a ground as you slowly turn the key. If one wire goes to ground when you lock with the key, and the other goes to ground when you unlock with the key, then you're good to go.
Looking at the image you posted, you should be able to follow the diagram in Figure C. No need to do anything with the actuators or the factory receiver, etc. ------------- My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 08, 2018 at 9:20 AM
thanks all this info you have provided help me a lot. Many thanks . What about the trunk release for the lanbo? where the wire of the trunk can be found in the car? on this car original remote shows a button for this function but at bulldog page shows this as N/A. Don't know how to procedure for this particular function. 
Posted By: gtdms
Date Posted: September 08, 2018 at 9:37 AM
Sorry to keeping asking so many questions but At bulldog says to take the 12v direct from battery , I assume this canbe taken from ignition as the battery on this car is at the back of the car.
this is the lanbo remote control ... 
Posted By: geepherder
Date Posted: September 08, 2018 at 12:57 PM
Check for a trunk release relay. If you can't find one, it could be built into one of the modules. If that's the case, you may be able to use the trunk release output from your keyless to drive a relay to power the factory solenoid.
As far as power, if it's just for keyless, you may still be able to use the constant lead at the ignition switch. Of course if you need to add a relay for the trunk release, you'll want to use a different source anyway. Check your passenger compartment fuse box(es) for a fat wire with constant power you can tap.
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 10, 2018 at 3:11 AM
ok thanks for the info.
Posted By: eguru
Date Posted: September 10, 2018 at 7:11 AM
Let's not confuse the readers by switching to a question about the Hyundai remote install when the topic was originally for a Volvo.
Suggest you delete your last post and start a new thread with an appropriate title.
Posted By: gtdms
Date Posted: September 10, 2018 at 7:58 AM
geepherder wrote:
While I don't have the vehicle in front of me, it seems like the toughest part (may not really be that difficult) is running two wires into the door to control the power locks. If you can do that, the rest should be fairly simple.
An alternative would be to purchase a module from Fortin or Xpresskit to simplify your wiring. I can't attest to their reliability, though:
https://fortin.ca/en/vehicles/volvo/v70/2002-standard-key/
https://directechs.com/VehicleCompatibility?VehicleYear=2002&VehicleMakeName=Volvo&VehicleModel=V70&__RequestVerificationToken=CfDJ8KaFf5gLp3VCngv4yerkDFNfnjYwrBBYItJxu8qvTFD8djavY14A2U2G0Syq4vxrnPhK2LL4Ndy_4KaXVu8iDQNK_rPqgvhmaDE1Ore1jooRj0_JjUXiZbNQKDrb6NIArDxaPkx2uY8LRFSz1UhiRXk
That is the first concern I got about this car. The other day testing the car I left the window open and close the drivers door with key and as a expected all 4 doors closed. I then tried to open drivers door from inside. Some sort of security system was immediately triggered and it didn't allow me to open the door from inside. Basically all handles become non functional. The person need to open the door in the same way as it was originally closed from outside drivers door with the key.
If I understood how actuators works . The actuator will try to trick the car central locking by opening the drivers door but in this particular case the car will not allow the doors to be opened? I am just wondering before considering to start this works how this will be done and if a new actuator/s installation /replacements will be needed and how? I wouldn't like to start and don't have the necessary parts to go ahead with the works. At the same time seems unreasonable that I need to disconnect all the original actuators and install 4 new ones but what if the actuators on this car is a sealed unit with the door lock?
Posted By: geepherder
Date Posted: September 10, 2018 at 10:11 AM
Test the wires at the door lock cylinder. They should not only arm/disarm the factory alarm, but also control the door locks.
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 10, 2018 at 3:39 PM
I will keep this in mind and check when open the car. I just want be sure I got every possible part needed for this job with me before I started as I don't find these parts where I live and once I open the car job has to be completed same day otherwise no car for family. I think I got it all now but Would one actuator with 2 wire be sufficient for this application at the drivers door or would I need a 5 wire one?
Posted By: geepherder
Date Posted: September 10, 2018 at 4:20 PM
There should be no need to install any more actuators.
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 11, 2018 at 5:49 AM
Ok. at bulldog website mentions a reference to some extra diagram and pdf documents for my car. It says that based on the diagram it needs diode isolate all 4 doors wires as per the pin isolation circuit diagram. May I ask where I can find this diagram? Does that means will I need to rewire all 4 doors?
Posted By: geepherder
Date Posted: September 11, 2018 at 8:04 AM
https://diagrams.marktoonen.nl/DOWNLOADS/3600_V70_(-)%20NEGATIVE%20DOOR%20PIN%20ISOLATION%20CIRCUIT.pdf
Just run a wire to each door trigger and diode isolate.
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 11, 2018 at 9:14 AM
geepherder wrote:
https://diagrams.marktoonen.nl/DOWNLOADS/3600_V70_(-)%20NEGATIVE%20DOOR%20PIN%20ISOLATION%20CIRCUIT.pdf
Just run a wire to each door trigger and diode isolate.
Just to make sure I am not installing an alarm. This will isolate the door trigger pins from the existing car alarm using the diodes. So there is not need to run wires, as are these not are all ready in place? Wouldn't be just the case to ad the diodes? Sorry but I would need a bit more info otherwaise I don't think this project will got ahead also there is no need to be so economical on the explanations or?
Posted By: geepherder
Date Posted: September 11, 2018 at 9:56 AM
Since you're only installing a keyless entry, there's no need to touch the door triggers.
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 17, 2018 at 12:44 PM
geepherder wrote:
Since you're only installing a keyless entry, there's no need to touch the door triggers.
Thanks for that.
Posted By: gtdms
Date Posted: September 17, 2018 at 2:02 PM
I have now started installation of keyless entry in this car. I am a bit lost about what I have expected to find at driver's door.
I can be wrong but I believe there is no actuator at the driver's door? even thought this car was factory fitted with keyless entry.
If there is an actuator it seems that this has been build in the same door lock unit? Looking at photos of second hand parts from this car door lock unity at flybay I can't see actuators.
Is it possible that the car had a functional factory fitted keyless entry without drivers door actuator?
Given that on bulldog diagram shows that this car alarm would need double pulse to unlock I now believe this may be the reason why this car wouldn't open door from inside once door was closed from outside with key.
I think the easiest solution would be to install an actuator at drivers door but I am not sure this will operate opening and close all car doors as it should as this would only mechanically move the door lock and the factory alarm would not be disarmed as it would still request double pulse? I got trunk output from my keyless and I am wondering if there is a way to wire the unit in a way which I would only need to hit remote once. Could a 5 wire actuator be the solution?
Would really appreciate some information how to resolve this guys.
Posted By: geepherder
Date Posted: September 17, 2018 at 2:52 PM
Yeah, like my Saab it's probably built into the door latch assembly (thanks for that, Sweden).
Have you tested the wires at the door lock cylinder yet?
If they are hard to access, they should also be at the door module (power window switch). See here:
https://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=97597
Bookmark this helpful site posted by Ween:
https://www.bbbind.com/free-tsb/
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 17, 2018 at 3:35 PM
geepherder wrote:
Yeah, like my Saab it's probably built into the door latch assembly (thanks for that, Sweden).
Have you tested the wires at the door lock cylinder yet?
If they are hard to access, they should also be at the door module (power window switch). See here:
https://www.revbase.com/BBBMotor/Wd/DownloadPdf?id=97597
Bookmark this helpful site posted by Ween:
https://www.bbbind.com/free-tsb/
Thanks for that but I believe this is too techical for me.
I have found 6 wires coming from the lock please see photo. I can always peel the wires and test it here.
What am I supposed to look for when testing the wires at the lock? Continuity , current? Voltage drops?
and how I would resolve the double pulse issue to disarm alarm?
Posted By: geepherder
Date Posted: September 17, 2018 at 5:19 PM
Bulldog says these are type "B" with is negative trigger: purple/white lock, blue/white unlock.
Put your red meter lead to positive 12 volts. Probe your suspect wire with the black meter lead, then turn the key in your driver's door. If you turn the key to lock, and your meter reads 12 volts, that is the correct wire. Do the same for unlock.
If double pulse is not a programmable feature on your keyless entry, you should be able to just press unlock twice. If that's not something you want to do, maybe something a PAC TR7 would work.
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My ex once told me I have a perfect face for radio.
Posted By: gtdms
Date Posted: September 17, 2018 at 5:31 PM
I guess I bettar close the car and put this project on hold for now until I find all necessary information. There are to many unanswered questions about the feasibility of this project hence the comments I got from previous volvo owners from other forums that this may not be feasible. It also makes me wonder why I don't find a single info on volvo's installations anywhere.
If anyone would come across any concrete information how to do this please let me know.
Posted By: gtdms
Date Posted: September 18, 2018 at 2:33 AM
Ok. Success. this is now working perfectly. The wire diagram from bulldog was correct. The issue was that there was a door panel connector not seating in place correctly and not key less entry opening and close the door without any issues. As I couldn't drill the door to pass the wiring as access to very limited I decided to place all wires and units inside the door. I wish to connect to the parking lights but that would mean I would need to drill the door.
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