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C11BRA
Nürburgring


Joined: 30 Mar 2015
Posts: 475
Location: North London. Herts.


PostPosted: Tue Mar 14, 2017 12:49 am    Post subject: Reply with quote

Hmmmmm. RHD/LHD ***** up.

Sounds possible.
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rcook
Newbie


Joined: 20 Mar 2019
Posts: 1



PostPosted: Wed Mar 20, 2019 11:51 am    Post subject: 1998 3.4 996 Carrera door wiring LHD to RHD Reply with quote

Does anyone have the detail on this;

"according to rennlist in the past, its because the doors are wired wrongly on some early cars on the lhd to rhd conversion.

so when you use the key to unlock the drivers door it thinks you trying to open the passenger door so sets off the alarm,

on my car I dont have a passenger door lock , so I cant use that either.

so you need to check the wiring from the doors is correct on the input to the alarm."


which wires do I need to check and swap if incorrectly wired.

Many thanks in advance, desperate to stop my alarm going off, everytime I open the car.
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6799
Location: Brighton


PostPosted: Wed Mar 20, 2019 7:59 pm    Post subject: Reply with quote

Wether you open the drivers door or passengers it should make no difference .. from the key you should have 10 seconds to put the key in the ignition before it triggers it .

Basically ive never herd of what you have mentioned .

i take it your key fob doesnt work .. get a new one ?

if not .. get a tester on the car ( indy ) there is a section that can tell you what is triggering the alarm .. events and activations .. it will say to the last 10 tiggers what has tripped the alarm and what faults the car was locked with .

You can also see the values of all the alarm components so its pretty easy to figure out whats wrong .

I know .. i do it often .
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kurlykris
Indianapolis


Joined: 30 Jun 2014
Posts: 2449
Location: Warwickshire


PostPosted: Wed Mar 20, 2019 8:12 pm    Post subject: Reply with quote

If I lock my 996.1 with the key, turning it anti-clockwise to lock, then unlock by turning the key clockwise, I have 10 seconds to put the key in the ignition to stop the alarm going off.
If I inadvertantly unlock the car by turning the key anti-clockwise, then immediately clockwise to unlock the car, the alarm goes off as soon as I open the door Grin
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6799
Location: Brighton


PostPosted: Wed Mar 20, 2019 8:20 pm    Post subject: Reply with quote

Now thats interesting .. technically it should make no difference .. some sort of software map that triggers it i guess .. an alarm feature ..

Either way ive learnt something new Thumb

Rule of thumb though .. these cars are designed to work off of a fob for lock / unlock .. the key is more of an emergency operation untill you get the fob sorted.

If your not going to fix the fob then you will have issues .
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kurlykris
Indianapolis


Joined: 30 Jun 2014
Posts: 2449
Location: Warwickshire


PostPosted: Wed Mar 20, 2019 8:50 pm    Post subject: Reply with quote

My fob works intermittently deMort, I keep attacking it with a soldering iron, but then it packs up again after a few weeks Sad
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Marky911
Indianapolis


Joined: 04 Jun 2009
Posts: 2419



PostPosted: Wed Mar 20, 2019 9:29 pm    Post subject: Reply with quote

kurlykris wrote:
If I lock my 996.1 with the key, turning it anti-clockwise to lock, then unlock by turning the key clockwise, I have 10 seconds to put the key in the ignition to stop the alarm going off.
If I inadvertantly unlock the car by turning the key anti-clockwise, then immediately clockwise to unlock the car, the alarm goes off as soon as I open the door Grin


Mine was like this but I couldn’t open the car at all without alarm sounding.
So one way would set alarm off instantly.
The other way wouldn’t set alarm off unless I opened door. So I could turn key to wake the system up then press key button for business as usual.

Whether that was a fault or a different setup I don’t know.
 
  
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thecarfixer
Monza


Joined: 03 Nov 2016
Posts: 166



PostPosted: Thu Mar 21, 2019 8:46 am    Post subject: Reply with quote

I suspect there are two different alarm units with different programming as I had different behaviour between my 98 996 and 99 986:

'98 986:

If the car has stood for more than five days, to activate the fob/get in the car you have to use the key in the drivers door to UNLOCK, then open the door and you have ten seconds to turn the key in the ignition before the alarm starts blaring. If you turn they key in the drivers door to LOCK then, UNLOCK, the alarm will start sounding as soon as you pull the door handle.

'99 986:

If the car had stood for more than five days, to activate the fob/get in the car, you had to turn the key in the drivers door to LOCK, then could press the fob button to unlock the car (fully, as though it hadn't been standing for five days). If you turned the key to UNLOCK as though to open the door, the alarm would start sounding.


When I first got my 996, I used to forget and play merry hell with alarm soundings Very Happy
 
  
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6799
Location: Brighton


PostPosted: Thu Mar 21, 2019 8:27 pm    Post subject: Reply with quote

kurlykris wrote:
My fob works intermittently deMort, I keep attacking it with a soldering iron, but then it packs up again after a few weeks Sad


My post wasnt aimed at you but rcook young man Smile

Ive tryed soldering them too .. my eyes are just not good enough these days let alone steady enough hands to solder something that small !!

Basic way i think of it .. its designed to work with a fob .. if your not going to get the fob working but then complain about issues with the " emergency operation " then i cant help .. get the fob working is all i can suggest or put up with the alarm triggers .
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