986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post

Lil bastard · 03-21-2008, 03:12 PM

The light is only ON for a required Speed Calibration of the DME on start-up - the DME needs to know with some degree of accuracy when the car reaches an actual, not indicated, 70MPH in order to lift the spoiler.

Once the car hits 3MPH, it should go out. If you idle for an extended time, it could remain ON for a while, because this calibration cannot take place unless the car is in motion.

If yours is staying ON past this 3MPH threshold, it could mean something wrong with the speed sensors at the front wheels. A possible short, corroded or loose connector is most likely. There have been at least one report of a speed sensor coming loose from the hub carrier entirely.

This indicator at start-up has nothing to do with the actual spoiler mechanism. Only if an issue develops upon deployment will it light for that reason.

The spoiler is a major contributor to high speed stability. Personally, if I didn't see anything wrong with the speed sensors and their wiring, I'd want to have it checked for safety's sake.

03-21-2008, 03:12 PM	#2
Lil bastard Registered User Join Date: Feb 2008 Location: Du Monde Posts: 2,199	The light is only ON for a required Speed Calibration of the DME on start-up - the DME needs to know with some degree of accuracy when the car reaches an actual, not indicated, 70MPH in order to lift the spoiler. Once the car hits 3MPH, it should go out. If you idle for an extended time, it could remain ON for a while, because this calibration cannot take place unless the car is in motion. If yours is staying ON past this 3MPH threshold, it could mean something wrong with the speed sensors at the front wheels. A possible short, corroded or loose connector is most likely. There have been at least one report of a speed sensor coming loose from the hub carrier entirely. This indicator at start-up has nothing to do with the actual spoiler mechanism. Only if an issue develops upon deployment will it light for that reason. The spoiler is a major contributor to high speed stability. Personally, if I didn't see anything wrong with the speed sensors and their wiring, I'd want to have it checked for safety's sake. __________________ 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; 03-21-2008 at 05:23 PM.