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Lil bastard · 04-14-2011, 12:03 PM

The Red Clip (PN# 986.504.986.00) was originally part of the Speedster Pkg.

It's function was to act as a Fail Safe to prevent the convertible top from being closed when the Speedster Humps were installed, which would have damaged the top mechanism and the Humps.

It was serrendipitously discovered that with this clip in place, in addition to preventing closing the top (because it disabled the top motor circuit), that it also activated the interior IR motion sensors.

The benefit of this was that with the clip in place, the top could be left open and the IR system offered some degree of protection from people reaching into the interior of the car. I say some protection because the system can be defeated by either swift or very slow motion which the system does not detect.

Porsche intentionally defaulted the IR sensors to inactive with the top down in order to prevent false alarms when say a bug flew into the interior, or a leaf fell into it, etc.

Cheers!

04-14-2011, 12:03 PM	#10
Lil bastard Registered User Join Date: Feb 2008 Location: Du Monde Posts: 2,199	The Red Clip (PN# 986.504.986.00) was originally part of the Speedster Pkg. It's function was to act as a Fail Safe to prevent the convertible top from being closed when the Speedster Humps were installed, which would have damaged the top mechanism and the Humps. It was serrendipitously discovered that with this clip in place, in addition to preventing closing the top (because it disabled the top motor circuit), that it also activated the interior IR motion sensors. The benefit of this was that with the clip in place, the top could be left open and the IR system offered some degree of protection from people reaching into the interior of the car. I say some protection because the system can be defeated by either swift or very slow motion which the system does not detect. Porsche intentionally defaulted the IR sensors to inactive with the top down in order to prevent false alarms when say a bug flew into the interior, or a leaf fell into it, etc. Cheers! __________________ 1990 Porsche 964 Carrera 4 Cabriolet 1976 BMW 2002 1990 BMW 325is 1999 Porsche Boxster (gone, but not forgotten) http://i933.photobucket.com/albums/a...smiley-003.gif Never drive faster than your Guardian Angel can fly! Last edited by Lil bastard; 04-14-2011 at 03:12 PM.