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YOUR RESEARCHManually Raise Rear Spoiler - No Switch
Leading reported evidence
Use cruise control as often as i
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Never experienced the cruise control issue but I use cruise control as often as I use the manual spoiler switch, lol.
Leading evidence: 'Use cruise control as often as i' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, the most frequently mentioned possible cause is 'government regulation somewhere' (1 discussions; 0 report identifying it and 1 suggest it). The most frequently discussed action is 'Check auto atlanta' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Never experienced the cruise control issue but I use cruise control as often as I use the manual spoiler switch, lol.
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Suspected cause · Original poster
There is probably a government regulation somewhere that requires the brake lights to be operable to use the cruise control.
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Check bellows and there is an incredible amount of water
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Suggestion
Gives me a chance to check the bellows and there is an incredible amount of water that drains out of the spoiler.
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Generation: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
I have an early 996, manufactured in March 98. It does not have a switch in the fuse panel to raise or lower the rear spoiler. Any suggestions on how to accomplish this?
Does anyone else have this "feature"? Any ideas on how to wire one up?
thank you in advance
It seems odd that you don't have the manual switch. Even the early Boxsters (1997) had those. Is there a spot at the top of the fuse where a switch would go? Maybe a PO removed it for some reason. Have you driven it at high enough speeds to raise it? They normally deploy around 75mph. Pictures of the spoiler and the fuse box would be helpful. I don't remember this ever being a "delete" option 996 or 986 Porsches.
The automatic part of the spoiler works as it supposed to. Raises at 77mph and retracts at ~35mph.
I have the space for the switch, but it is empty. Saturday I was going to pull the fuse cover and carpet section around the fuse block to see if the wiring harness exists. if so, it would be a simple replacement. If not.......
Try checking Auto Atlanta. Their site not only sells parts but has detailed part schematics. I think they have wiring detail on their electrical section too. I know several suppliers sell the switch. Hopefully the wiring is still there and someone just removed the switch. It still seems weir someone would do that unless the switch shorted out and had to be removed.
Does anyone ever use the manual switch? I think in 2 years I've used it 1x just to look at the car from behind. Should I be raising it when giving car a hand wash? Thx.
My wife will tell you I am pretty oblivious, but this is one of my cars. No switch on the horseshoe. No other non-standard switches are visible.
My cruise control becomes inoperable once the rear spoiler raises. The first thing to check is if the spoiler-mounted brake light is working. It seems a little unsafe to check the brake light while the car is moving at 75mph. I went to manually raise the spoiler with the switch. I should not post the next sentence, but what the heck. I placed my finger in the little hole and found nothing for as far as it would go.
Have your wife follow you in another car, get above 77mph, tap the brake and let her tell you whether it works or not. Never experienced the cruise control issue but I use cruise control as often as I use the manual spoiler switch, lol. Good luck.
The manual switch is located in the fuse panel cover. Why don't you pop the cover off and see if the switch just got pushed in? It would take 5 seconds.
I don't want to sound **** or OCD, but when I wash my car I always raise the spoiler when drying things up. Gives me a chance to check the bellows and there is an incredible amount of water that drains out of the spoiler. What I do is slightly lift the engine bay lid, throw some towels in there to cover the engine, then raise the engine lid all the way up and then put up the spoiler. I also use my blower in the engine bay after pulling out the towels. Hey...whatever...
This was done before creating the post. There is no switch visible with the fuse cover removed. Over the weekend, I will be removing the fuse panel cover and the carpet panel to look for the switch/harness. Time to start pre-stretching for some weekend contortionism.
I took the carpet panel off during lunch today. The switch had worked loose and was behind the wiring loom on the floor. Snapped it back in place and is working great. The spoiler-mounted brake light is not working, which explains why the cruise works at speeds below 75 and becomes inoperable above 75.
This was a cheap fix until I saw how ragged my bellow (the rear wall) is. Time to replace the rear wall (996 512 250 00)
Placing the replacement links and videos here for future use:
https://www.renntech.org/tutorials/a...-rear-spoiler/
You Tube
Thank you everyone for your feedback and assistance.
Glad the worked out. What�s the connection between the spoiler brake light not working and the cruise control not activating due to that? Why does the cc care if the light works?
The cruise control computer looks for a current/resistance through the three active brake lights to ensure they are operational before allowing the cruise control to activate.
Some brands of LED taillights have caused the cruise control to become inoperable due to not enough resistance in the circuit. For more info, see:
https://rennlist.com/forums/993-foru...anks-tore.html
Sometimes, I am amazed at the ingenuity of Porsche engineers. Sometimes, I shake my head and wonder. There is probably a government regulation somewhere that requires the brake lights to be operable to use the cruise control.
After 32,000 miles I have no idea whether my spoiler brake light works or not. I will give it the �cruise control test� on my next drive. Appreciate the explanation and the link.
The cruise control senses the brake lights coming on to release the cruise control automatically when the brake pedal is pushed.
There is a very small current constantly passing through the brake lights so if a brake light bulb opens up the current is different and the cruise control assumes there is a malfunction in the brake light circuit and prevents the cruise control form operating.
This seems to be pervasive throughout all of the Porsche vehicle lineup.
