yableep Posted July 8, 2017 Report Share Posted July 8, 2017 Hi everyone,I would need some help or advice about factory fitted alarm on a 2.8 CDI Voyager.I have an intermitted issue with the disarming of the alarm system.On some occaions the fob will not disarm the alarm system, but it let's me start the engine.I managed to reset it via disconnecting the battery.After a couple of days it does it again.I wonder if replacing the alarm control module would fix the problem.Does a new control module would need programming?Also where is the location of the module? Any advice or help is much appreciated Thank you Quote Link to comment Share on other sites More sharing options...
0 bignev Posted July 8, 2017 Report Share Posted July 8, 2017 Hi there!Do you have 2 fobs, and if so is it the same for both - just to confirm it's the alarm and not an intermittent signal sending fault on the remote, or week fob battery at times? Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 8, 2017 Author Report Share Posted July 8, 2017 Hi,Thanks for reply,Yes, it does it on both fobs, changed battery on one of them with no result.The only way I can reset the alarm is to disconnect the battery, reconnect and put the key in to ignition on "run" mode. Quote Link to comment Share on other sites More sharing options...
0 mikebh8 Posted July 9, 2017 Report Share Posted July 9, 2017 (edited) Hi, did you try checking the car's battery?Also it sounds like the baterry terminals are not connected properly, or a communication is lost somewhere,I would lean towards driver side door. If the car is armed and the baterry disconnected, the alarm will sound until the baterry is connected back and the key is turned into the ignition as it has a backup baterry...Starting the engine and arming/disarming the car are two different things connected between them. If the alarm fails, the car would be disarmed by the ignition key turned on, and the other way around if the alarm is not disarmed by the fob or the key into the ignition, the engine would be restricted by the alarm. I personally believe that the module does its job.On the occasions where it doesn't work, how are you getting inside the car?You don't need to reprogram the module, however if it comes with no remote/s you will have to program the existing ones. How to videos on youtube. Never took one out but it looks like is behind the dash on top of the cluster. Repeating myself I would look for a faulty wire that on ocassions shortcuts the circuit and develops the fault, generally on movable parts like the wires passage from the car to the door . Don't take it for granted, hope it helps. Edited July 9, 2017 by mikebh8 Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 9, 2017 Author Report Share Posted July 9, 2017 Hi, did you try checking the car's battery?Also it sounds like the baterry terminals are not connected properly, or a communication is lost somewhere,I would lean towards driver side door. If the car is armed and the baterry disconnected, the alarm will sound until the baterry is connected back and the key is turned into the ignition as it has a backup baterry...Starting the engine and arming/disarming the car are two different things connected between them. If the alarm fails, the car would be disarmed by the ignition key turned on, and the other way around if the alarm is not disarmed by the fob or the key into the ignition, the engine would be restricted by the alarm. I personally believe that the module does its job.On the occasions where it doesn't work, how are you getting inside the car?You don't need to reprogram the module, however if it comes with no remote/s you will have to program the existing ones. How to videos on youtube. Don't take it for granted, hope it helps.Thanks for your reply,The fob works okay, it opens the doors okay, but on some occasions it doesn't disarm, but I can start the engine.Maybe the communicator on the driver's side door popped off? Is that what you are trying to say? Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 9, 2017 Author Report Share Posted July 9, 2017 Thanks for your reply,The fob works okay, it opens the doors okay, but on some occasions it doesn't disarm, but I can start the engine.Maybe the communicator on the driver's side door popped off? Is that what you are trying to say?Now it's doing it all the time, ican set the alarm with the fob, but can not disarm. Quote Link to comment Share on other sites More sharing options...
0 mikebh8 Posted July 10, 2017 Report Share Posted July 10, 2017 (edited) Hi, I am assuming something is wrong in the driver side door can't exactly say what wire would be or what the fault is.Does the other one work at all? What if the remote disarm button has corroded and needs cleaning, do the other buttons work?When you say the fob works fine, you mean it unlocks and locks the doors as it should but it doesn't disarm the alarm, it that case would most likely be something wrong between the mechanical unlocking and disarming switch on the door.Did you also try resetting the remote/s. On some cars after replacing the batteries or after long time the remote hasn't been used, the remote needs repaired with the module.Depending on model it is usually done by turning the ignition into on position and playing with the arm/disarm buttons, can't say for sure the procedure, but if you find the instructions online worth trying.Also, removing the battery terminals I don't think it helps much as the alarm has a back up battery, you could try removing the central locking fuse and wait few minutes before replacing it. Hope it helps. Edited July 10, 2017 by mikebh8 Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 10, 2017 Author Report Share Posted July 10, 2017 Hi, I am assuming something is wrong in the driver side door can't exactly say what wire would be or what the fault is.Does the other one work at all? What if the remote disarm button has corroded and needs cleaning, do the other buttons work?When you say the fob works fine, you mean it unlocks and locks the doors as it should but it doesn't disarm the alarm, it that case would most likely be something wrong between the mechanical unlocking and disarming switch on the door.Did you also try resetting the remote/s. On some cars after replacing the batteries or after long time the remote hasn't been used, the remote needs repaired with the module.Depending on model it is usually done by turning the ignition into on position and playing with the arm/disarm buttons, can't say for sure the procedure, but if you find the instructions online worth trying.Also, removing the battery terminals I don't think it helps much as the alarm has a back up battery, you could try removing the central locking fuse and wait few minutes before replacing it. Hope it helps.Thanks for your replay,All the buttons on the fobs are working, the only thing I can't do anymore is disarm the alarm (at first it was every other day, now it is very time when the car is parked for the night and in the morning the same happens), it unlocks the doors okay. I believe the fobs are working okay. Maybe there is something not working correctly with the switch in the drivers door. Anyway, I am taking it back to the dealer as it is still under warrenty. It's the hazzle, that bothers me. Quote Link to comment Share on other sites More sharing options...
0 scrufgp Posted July 14, 2017 Report Share Posted July 14, 2017 i have the exact same problem when alarm is armed goes off can lock and unlock with remote fob but does not turn siren off i have tried numorous resets diconecting battery does nothing apart from annoy it more lolhad auto electrician look at it (dont think he was very good) said there was no fault found i just lock my car with the cental door lock button on the door now if some one has got a cure for this would love to know it myself ps had same problem on my last 2.5 voyger too i think its just another voyager quirk !!!(as im on my second voyager with exact same issues) Quote Link to comment Share on other sites More sharing options...
0 mikebh8 Posted July 15, 2017 Report Share Posted July 15, 2017 Scrufgp, in your case could be an inside snsor, there is one in front of the passenger side( on the pillar) and one at the back on the tailgate... If it triggers it means is set off by something obstructing the circuit. If you had a door opened, it would make a beep when locked from remote.Hope it helps. Quote Link to comment Share on other sites More sharing options...
0 scrufgp Posted July 18, 2017 Report Share Posted July 18, 2017 thanks for advice mike i have had the internal sensors checked and all seem fine and dandy the alarm can be armed as usal but could be 2 mins or 2 hours later the siren will sound and will not turn off with key fob or manual door lock disconectiing battery i have tried every thing i can think of to no avail Quote Link to comment Share on other sites More sharing options...
0 mikebh8 Posted July 18, 2017 Report Share Posted July 18, 2017 Just wondering...did you keep the battery from the previous one? I'm not saying is the battery faulty but by exclusion you might find the problem....Hope it helps. Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 28, 2017 Author Report Share Posted July 28, 2017 Thanks for your replay,All the buttons on the fobs are working, the only thing I can't do anymore is disarm the alarm (at first it was every other day, now it is very time when the car is parked for the night and in the morning the same happens), it unlocks the doors okay. I believe the fobs are working okay. Maybe there is something not working correctly with the switch in the drivers door. Anyway, I am taking it back to the dealer as it is still under warrenty. It's the hazzle, that bothers me.I have done some more research and it has been suggested to disconnect or replace the sirens backup battery, it can cause a lot of problems (on some occasions water gets inside or battery is dying). I bought another siren from the scrappy for £10 to have a look inside. There are 3 components inside, speaker, circuit board and battery, all just connected with push on connectors, nothing soldered. I am planning to just unplug the backup battery on my siren to see if my issue goes away, if that doesn't solve it, I will swap the circuit board. I will keep you posted. Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 29, 2017 Author Report Share Posted July 29, 2017 Thanks for your reply,The fob works okay, it opens the doors okay, but on some occasions it doesn't disarm, but I can start the engine.Maybe the communicator on the driver's side door popped off? Is that what you are trying to say?Do you know where the backup battery is located? My siren is a twin horn, but can not see the backup battery anywhere near it.Thanks Quote Link to comment Share on other sites More sharing options...
0 mikebh8 Posted July 29, 2017 Report Share Posted July 29, 2017 Do you know where the backup battery is located? My siren is a twin horn, but can not see the backup battery anywhere near it. Hi, the backup battery is inside a black box, it looks like an old Bluetooth speaker, if you fallow the leads from the twin siren it will probably go there. Hope it helps.Thanks Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 29, 2017 Author Report Share Posted July 29, 2017 Do you know where the backup battery is located? My siren is a twin horn, but can not see the backup battery anywhere near it. Hi, the backup battery is inside a black box, it looks like an old Bluetooth speaker, if you fallow the leads from the twin siren it will probably go there. Hope it helps.Thanks Thanks for your reply, the wires disappear in a harness. I've seen a small black box opposite the speakers encased in a metal box, maybe that is the one. there is 1 cable coiming out of there, but it is not going to the siren. Quote Link to comment Share on other sites More sharing options...
0 mikebh8 Posted July 30, 2017 Report Share Posted July 30, 2017 I don't remember exactly and I can't go to the car now, but I guess that's the one.Turning the alarm on and touching the box you should feel the vibrations or even locate the sound. Hope it helps. Quote Link to comment Share on other sites More sharing options...
0 yableep Posted July 30, 2017 Author Report Share Posted July 30, 2017 I don't remember exactly and I can't go to the car now, but I guess that's the one.Turning the alarm on and touching the box you should feel the vibrations or even locate the sound. Hope it helps.Thanks Quote Link to comment Share on other sites More sharing options...
0 mrbridger Posted October 20, 2020 Report Share Posted October 20, 2020 I had exactly the same problem with my 2.8l GV (2007)...it turned out to be the amp in the back draining the battery quickly and causing the alarm not disarming, then main battery discharging and then alarm going off (activating) at random times *presumably when the main battery is about to completely discharge. Alarm only stopped when the auxiliary battery died. Hope this helps someone in the future! (Cost me £500 in tests and diagnosis etc) Quote Link to comment Share on other sites More sharing options...
Question
yableep
Hi everyone,
I would need some help or advice about factory fitted alarm on a 2.8 CDI Voyager.
I have an intermitted issue with the disarming of the alarm system.
On some occaions the fob will not disarm the alarm system, but it let's me start the engine.
I managed to reset it via disconnecting the battery.
After a couple of days it does it again.
I wonder if replacing the alarm control module would fix the problem.
Does a new control module would need programming?
Also where is the location of the module?
Any advice or help is much appreciated
Thank you
Link to comment
Share on other sites
18 answers to this question
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.