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THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH996 spoiler rear problems
Leading reported evidence
Disconnect speed wire triggers
Performed · outcome unconfirmed
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0
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1
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Performed · outcome unconfirmed
They disconnected the speed wire triggers from the instrument cluster (or the cluster is bad).
Leading evidence: 'Disconnect speed wire triggers' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Disconnect speed wire triggers' (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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Performed · outcome unconfirmed · Original poster
My car has an aerokit fitted so there is a rear spoiler attached to the tail.
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Performed · outcome unconfirmed
They changed the spoiler wiring harness to the aerokit one which has the spoiler motor not used (I'm not sure on this since I've never hooked this harness to a car with a standard spoiler.) or 2.
Discussions that performed work without a confirmed outcome
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0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.
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Performed · outcome unconfirmed
They changed the spoiler wiring harness to the aerokit one which has the spoiler motor not used (I'm not sure on this since I've never hooked this harness to a car with a standard spoiler.) or 2.
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Rennlist: 1 discussions
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My rear spoiler is giving me problems. I can manually open it and close it with the switch but it fails to open automatically at 75mph and the dash light comes on.
To get around this, I have to pull over, turn the ignition off, re-start the car and then manually open the rear spoiler with switch. But then when I drop the speed below about 50 the spoiler retracts again and I am back to sqare one.
My car has an aerokit fitted so there is a rear spoiler attached to the tail. But I have had the car since new for 3 years no and haven't had any problems before with it.
I wonder if a cable plug has come loose or something but I don't know where to start looking.
Any help appreciated.
Cheers,
Scouser
Sounds like he has that little tech art one or soemthing akit that attaches to the stock spoiler. He can manually deploy and detract it but it doesn't do so automatically at speed. Maybe the added spoiler weight and or resistance at speed is more than the limit and it creates too much current draw for the system? dunno.
Hi again,
Sorry for the confusion. Yes it's a tech art spoiler attached to the factory retractable spoiler.
But I have had this car for 2 1/2 years now from new and haven't had any problems like this before.
The tech-art kit was fitted at 900 miles.
Also, I can manually manipulate it, so I would suggest the motor is working fine. I just had my wife put some pressure on the tail as I manually lifted it with the switch and it didn't give any problem. So I doubt the extra weight is the cause.
It seems that it does not auto-lift at all. The dashboard light comes on and the tail doesn't even attempt to move at the operating speed.
I read in another board that there is a relay under the passenger dashboard that can cause this and also the microswitch may have gone. But I can't find either relay or switch.
Again, thanks for any help and comments you can give me.
Cheers,
Scouser
A TSB is a "Tech Service Bulletin" that is published by Porsche periodically when a specific situation or problem needs to be addressed. You can see a listing of TSBs for Porsche by going to <a href="http://www.alldata.com" target="_blank">www.alldata.com</a> There is no detail w/o subscribing, but you can see the list of titles.
There are no TSBs (Technical Service Bulletins) for the spoiler per se. There is one for a miswired purge fan and one for corrosion prevention.
The manual switch uses the same relays as the auto lift so I think the relays are ok. It could be that when they installed the Techart kit they did one of two things - 1. They changed the spoiler wiring harness to the aerokit one which has the spoiler motor not used (I'm not sure on this since I've never hooked this harness to a car with a standard spoiler.) or 2. They disconnected the speed wire triggers from the instrument cluster (or the cluster is bad).
This is a pretty simple circuit and the fact that it works manually means most of it is working. So what is left are the connections to the instrument cluster - that trigger on speed.
Thanks for your great info Loren. Is this something I could chance fixing myself?
I am an electronics engineer but not automotive.
But a am generally a dab hand fixing things.
How do I get to the instrument cluster?
Thanks again.
To disassemble the cluster see this thread <a href="http://forums.rennlist.com/forums/ultimatebb.php?ubb=get_topic;f=5;t=003731#000000" target="_blank">Cluster thread</a>.
I sent you an email with more info.
This is a source reference. Confirm exact model applicability in the original material.
