Power Window Problem

[DBA]

I have an 88 3.2 carrera cab and the drivers power window has stopped working.
I changed the switches around, and even replaced one switch, and this did not solve the problem.
I disassembled the door and window mechanism to retreive the motor, and put 12v accross it - and it worked fine.
I have tracked the problem down to the Window Closer - a black box (100mm X 75mm X 40mm with three wires coming out of it) with a part no of 999.999.713.00, I switched the two window connections around, and the passenger side stopped working and the drivers worked - so this box is faulty.
I have not found the part listed anywhere, so now have three choices - go to OPC to see if they have one, get a 2nd hand one, or look at the electronics myself.
There is a possible fourth option - Rovers use a similar box to control the windows, I could try retro fitting one of these.
Has anyone come accross this as a problem, and what was the solution.

Thanks

Anthony

this link shows the modern electronics involved. http://www.circuitprotection.com/04Databook/F07_power_(176-178).pdf

 

[tripe]

I might be wrong but I think your window closer is a UK specific alarm component manufactured for Porsche by Hamilton & Palmer in Kent. I doubt the Rover unit would be compatible but it's worth a try I guess.

Your OPC might be able to supply a replacement if that is indeed the faulty component, or Hamilton & Palmer may be able to help if you contact them direct.

http://www.hamilton-palmer.co.uk/

 

[DBA]

Thanks, I'll give them a go

 

[Signor]

Greetings
I think what you've got there is a "window closer" module which is only used when you arm an alarm system and it in turn sends both windows up. I don't beleive it's original and can be bypassed, as I say it is only there for the alarm system. Do you have an alarm on the vehicle and is it working? [:-]
What the box does is send a positive feed on the "up" wires as if you have operated the door switches. And of course the box can have faulty connections internally, and because its wired in series if it packs up so does the window[] you need to fault find with a trusty volt meter and a bit of savvy. The switches in the door are simply a reverse polarity type not like modern carraiges where everything is controlled by a b*********d of an ECU.
If you have any further questions or need more details e-mail me your jelly bone number. No worries.
Good luck.
Alex

 

[DBA]

Thanks Alex

No I don't have the porsche alarm, but a 3rd party one, that does not interface with the windows or hood in any way.
When I look in the black box one thing I notice is that it contains two bi-metallic switches, which I assume protect the window motors from overload - when the window reaches the top or the bottom of its movement. If I bypass these what will protect the motors (apart from common sense - which might be too much to ask of my 2 year old).
I am planning a visit to my OPC this lunchtime, and I will pass on any pearls of wisdom that they may offer (the parts manager remembers the car from new)

 

[DBA]

Alex / Tripe

thanks for your advise, you were absolutley correct, the unit is part of the porsche one alarm system, which has been disabled on my car (would be nice to try to resurect it). The OPC said that they could supply a replacement black box for £65 +VAT, but gave me the contact details for Hamilton Palmer, whom I contacted direct and they are shipping a replacement for £38 + VAT.
I might contact them to see if they have an installation manual for the alarm, so I can see how it has been disabled.

Anthony