Bazzer Posted July 11, 2023 Report Share Posted July 11, 2023 Can anyone tell me why my 986 only toots twice when the roof is up not down i have only had the car 2 months but the old owner did say he had a new windscreen fitted he said by porsche can anyone help bazzer Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted July 11, 2023 Report Share Posted July 11, 2023 Shouldn’t toot twice. That means a microswitch somewhere hasn’t closed. Quote Link to comment Share on other sites More sharing options...
Daboy3000 Posted July 11, 2023 Report Share Posted July 11, 2023 I believe when the roof is down and you lock the car, it doesn't activate the motion sensors for the alarm. Do the windows drop when you release the roof catch to put it down? Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted July 11, 2023 Report Share Posted July 11, 2023 note these can come from other things so don't assume it's linked to the roof. If it had an aftermarket stereo fitted and someone didn't connect the cage earth, that would also cause issues. Or the armrest box lid is not closing properly. People here will tell you what could be the causes of single toot, double toot, to help you narrow it down. Quote Link to comment Share on other sites More sharing options...
½cwt Posted July 11, 2023 Report Share Posted July 11, 2023 (edited) Single toots are for open circuits like doors/bonnetboot open, internal storage box in the console not shut or the stereo cage wire disconnected. Doubles are usually system errors in the alarm system. Edited July 11, 2023 by ½cwt 1 Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted July 11, 2023 Report Share Posted July 11, 2023 3 hours ago, Bazzer said: Can anyone tell me why my 986 only toots twice when the roof is up not down bazzer Mods please change his username to buzzer 3 Quote Link to comment Share on other sites More sharing options...
Bazzer Posted July 12, 2023 Author Report Share Posted July 12, 2023 22 hours ago, Menoporsche said: note these can come from other things so don't assume it's linked to the roof. If it had an aftermarket stereo fitted and someone didn't connect the cage earth, that would also cause issues. Or the armrest box lid is not closing properly. People here will tell you what could be the causes of single toot, double toot, to help you narrow it down. Everything in the car is factory including the stereo i just was asking where do I start to find out why if it toots twice dos that mean the car is not alarmed the armbox lid don’t seem to lock on the key dos it lock when you arm the car like the fuel cap dos 🤷♂️ Quote Link to comment Share on other sites More sharing options...
Bazzer Posted July 12, 2023 Author Report Share Posted July 12, 2023 22 hours ago, Daboy3000 said: I believe when the roof is down and you lock the car, it doesn't activate the motion sensors for the alarm. Do the windows drop when you release the roof catch to put it down? Yes my window drop down a bit when I drop the roof also when I open the car door but when I drop the roof the windows on both sides stay down a bit and don’t go up to there original start position Quote Link to comment Share on other sites More sharing options...
iborguk Posted July 12, 2023 Report Share Posted July 12, 2023 Getting on a decent code reader will help diagnose, where are you based ? There may be someone on the forum near you who can help re that. Quote Link to comment Share on other sites More sharing options...
Daboy3000 Posted July 12, 2023 Report Share Posted July 12, 2023 (edited) 1 hour ago, Bazzer said: Yes my window drop down a bit when I drop the roof also when I open the car door but when I drop the roof the windows on both sides stay down a bit and don’t go up to there original start position Mine have never gone back up. Looking at that ^ video, it could well be your problem as the motion sensor is off when the roof is down. Edited July 12, 2023 by Daboy3000 Quote Link to comment Share on other sites More sharing options...
½cwt Posted July 12, 2023 Report Share Posted July 12, 2023 Not sure about the 2004 model, but my 2000 model requires the windows to be raised after completing the roof closure, it is not automatic. The window drop for roof operation is significantly more than for opening/closing the doors. Quote Link to comment Share on other sites More sharing options...
Bike Loon Posted July 12, 2023 Report Share Posted July 12, 2023 Nope, they do not go back up. If they are closed when you close the roof, they will drop whilst its in motion and return back up but if you have them part or full open, the roof operation will not effect them at all. Quote Link to comment Share on other sites More sharing options...
½cwt Posted July 12, 2023 Report Share Posted July 12, 2023 10 minutes ago, Bike Loon said: Nope, they do not go back up. If they are closed when you close the roof, they will drop whilst its in motion and return back up but if you have them part or full open, the roof operation will not effect them at all. Nope, mine don't go back up even if they were closed when the roof is opened or closed. Quote Link to comment Share on other sites More sharing options...
Sanky Posted July 13, 2023 Report Share Posted July 13, 2023 (edited) 18 hours ago, ½cwt said: Nope, mine don't go back up even if they were closed when the roof is opened or closed. So if your roof is open and your windows are in the fully up position. Do they not go down partly when you start to close the roof from the switch, then fully close the windows when you close the roof latch? Edited July 13, 2023 by Sanky Quote Link to comment Share on other sites More sharing options...
Bike Loon Posted July 13, 2023 Report Share Posted July 13, 2023 18 hours ago, ½cwt said: Nope, mine don't go back up even if they were closed when the roof is opened or closed. I think they should. IIRC all 4 of my Boxsters it has worked that way. Quote Link to comment Share on other sites More sharing options...
½cwt Posted July 13, 2023 Report Share Posted July 13, 2023 9 minutes ago, Sanky said: So if your roof is open and your windows are in the fully up position. Do they not go down partly when you start to close the roof from the switch, then fully close the windows when you close the roof latch? If the windows are up (roof open or closed) they drop about 100mm as they should, but they do not go up again when the roof operation is finished, I have to use the window switches. Looks like a defect to try to track down, but I've lived with it for nearly 5 years now so no rush 😴 Quote Link to comment Share on other sites More sharing options...
iborguk Posted July 13, 2023 Report Share Posted July 13, 2023 (edited) @Bazzer as per @Bike Loon expected behaviour is the windows should raise when putting the roof up. A faulty roof latch seems to be responsible for most window position/triggering issues re the roof. Edited July 13, 2023 by iborguk Quote Link to comment Share on other sites More sharing options...
Bike Loon Posted July 13, 2023 Report Share Posted July 13, 2023 35 minutes ago, ½cwt said: If the windows are up (roof open or closed) they drop about 100mm as they should, but they do not go up again when the roof operation is finished, I have to use the window switches. Looks like a defect to try to track down, but I've lived with it for nearly 5 years now so no rush 😴 Its ok, the windows on your 987.2 work correctly Quote Link to comment Share on other sites More sharing options...
Menoporsche Posted July 13, 2023 Report Share Posted July 13, 2023 43 minutes ago, iborguk said: A faulty roof latch seems to be responsible for most window position/triggering issues re the roof. Was it recently that someone reported re-flowing the solder track to fix this? or was that something else? Quote Link to comment Share on other sites More sharing options...
iborguk Posted July 13, 2023 Report Share Posted July 13, 2023 3 minutes ago, Menoporsche said: Was it recently that someone reported re-flowing the solder track to fix this? or was that something else? IIRC that was re a window drop but this kind of behaviour is normally on the ballpark of the same issue , a faulty roof latch micro switch. Reflow does seem to be a common fix , the solder joints dry out/crack with age. Quote Link to comment Share on other sites More sharing options...
½cwt Posted July 13, 2023 Report Share Posted July 13, 2023 36 minutes ago, iborguk said: @Bazzer as per @Bike Loon expected behaviour is the windows should raise when putting the roof up. A faulty roof latch seems to be responsible for most window position/triggering issues re the roof. I might, at the risk of causing more issues, start with a poke around and then some contact cleaner not sure about my soldering skills. I have changed the car to a 2001 onwards interior light and I can't recall whether I changed the whole latch/alarm sensor assembly or just switched the light unit as I got a complete latch/sensor/light unit with a section of loom from Steve Strange. Either way I should have a spare switch if it turns out to be the fault. That said if the windows don't rise after the roof goes down it would seem to unlikely to be the latch microswitch. 14 minutes ago, Bike Loon said: Its ok, the windows on your 987.2 work correctly Good to hear, hope it stays that way 😉 Apologies to OP @Bazzer for hijacking his posting. 1 Quote Link to comment Share on other sites More sharing options...
Bazzer Posted July 13, 2023 Author Report Share Posted July 13, 2023 Hi guys thank you for all your replies i think I will start at the roof switch and go from there as I said it has had a new windscreen fitted by the previous owner by Porsche so it could be a good start place Quote Link to comment Share on other sites More sharing options...
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