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Checkmate
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Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sat Feb 16, 2019 10:41 am    Post subject: How to check rear wing fault ? Reply with quote

Hi Guys, hope you are having good weekend!

My spoiler stop working. I’ve check fuses, I’ve took off back cover and check the hydraulic pump it looks like there is no power supply to the pump when I press the switch.
My question is, am I doing this correctly? I mean is it possible to erect spoiler with open rear hood ?

There is no worning light too, should I buy new switch and try it or it may be something else ?

Thanks
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2007 997.1 C4S atlas grey
 
  
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FZP
Paul Ricard


Joined: 18 Jan 2015
Posts: 3121
Location: Cheshire


PostPosted: Sat Feb 16, 2019 12:12 pm    Post subject: Reply with quote

Although I can't help with the diagnosis portion of your question, I can confirm that you can deploy the spoiler up with it open as I did it this morning whilst washing the car.
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Checkmate
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Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sat Feb 16, 2019 1:59 pm    Post subject: Reply with quote

FZP wrote:
Although I can't help with the diagnosis portion of your question, I can confirm that you can deploy the spoiler up with it open as I did it this morning whilst washing the car.


Thank you FZP, that’s mean it’s not the mechanism, and not the fuse. I think I’ll get new switch and try play with it.

Many thanks for that Thumb
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jl-c
Silverstone


Joined: 22 Jul 2013
Posts: 105
Location: Shropshire


PostPosted: Sat Feb 16, 2019 3:58 pm    Post subject: Reply with quote

Now I may be way off here but, the stock spoiler on a C4S and C2S surely is electric not hydraulic? I believe it is only hydraulic on the turbo style wing. I know this because I have rebuilt mine with new rams Smile
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6171
Location: Brighton


PostPosted: Sat Feb 16, 2019 4:29 pm    Post subject: Reply with quote

Yup its electric on all 997 other than fixed wing or Turbo ..

Turbo has a hydraulic pump .

The motor is driven from the Rear end control unit which is under the passenger seat .. so first things first ..

Its a cab , water can leak into it and the rear control unit is the one that gets wet .. have a look under the n/s/f seat and make sure its dry .

Secondly .. if you drive the car over 70 mph then the spoiler should raise on its own .. it it doesnt you will get a warning message on the dash as its a safety system .

Im assumeing you have not had this mesage and have driven at speeds were it would deploy ?

Going with yes on the above then logically we are left with the rear control unit is not getting a signal from the switch OR the codeing has messed up and it thinks it no longer has a spoiler .
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sun Feb 17, 2019 8:21 am    Post subject: Reply with quote

jl-c wrote:
Now I may be way off here but, the stock spoiler on a C4S and C2S surely is electric not hydraulic? I believe it is only hydraulic on the turbo style wing. I know this because I have rebuilt mine with new rams Smile


You absolutely right jl-c , I should check this before I post that Embarassed
It is electric of course.
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sun Feb 17, 2019 8:34 am    Post subject: Reply with quote

deMort wrote:
Yup its electric on all 997 other than fixed wing or Turbo ..

Turbo has a hydraulic pump .

The motor is driven from the Rear end control unit which is under the passenger seat .. so first things first ..

Its a cab , water can leak into it and the rear control unit is the one that gets wet .. have a look under the n/s/f seat and make sure its dry .

Secondly .. if you drive the car over 70 mph then the spoiler should raise on its own .. it it doesnt you will get a warning message on the dash as its a safety system .

Im assumeing you have not had this mesage and have driven at speeds were it would deploy ?

Going with yes on the above then logically we are left with the rear control unit is not getting a signal from the switch OR the codeing has messed up and it thinks it no longer has a spoiler .



Thank you for your reply deMort, I’ve checked under passenger seat and is dry and tidy there. I don’t know how I could diagnose that control unit really. Would the scanner do the job? I’m planning to get one anyway for the other things in future.

But as we said, I’m driving over 70mph early morning everyday, I did check few times on the other cars reflection and it’s definitely no working.. having said that, if the switch is foulty- the spoiler still should come up over 70 is that right ?

Thank you
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6171
Location: Brighton


PostPosted: Sun Feb 17, 2019 4:56 pm    Post subject: Reply with quote

If the spoiler is not raiseing when it should but you dont get a warning message then i can only assume the car thinks everything is ok .. in other words it thinks it hasnt got a spoiler .

This would be a codeing issue and depending on the type of tester you have may or may not be available to you .

There are other things but i would start with a tester and check values for the spoiler , fault codes .. if i could operate it with the tester etc before moveing onto checking the wireing .

I would tend to say get an indy to have a bit of a look and diagnose it as theres very little i can say that will help you im afraid .
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systech1
Silverstone


Joined: 10 Jul 2016
Posts: 115
Location: Adelaide, South Australia


PostPosted: Tue Feb 19, 2019 9:31 am    Post subject: Reply with quote

deMort wrote:
If the spoiler is not raiseing when it should but you dont get a warning message then i can only assume the car thinks everything is ok .. in other words it thinks it hasnt got a spoiler .

This would be a codeing issue and depending on the type of tester you have may or may not be available to you .

There are other things but i would start with a tester and check values for the spoiler , fault codes .. if i could operate it with the tester etc before moveing onto checking the wireing .

I would tend to say get an indy to have a bit of a look and diagnose it as theres very little i can say that will help you im afraid .


If you want to DIY, I can confirm that the Foxwell NT510/520 diagnostic tool (around UKP 100 or so) can code it to either Fixed or Lifting
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Long time Porsche fan. Previous cars include 911T 2.2, 911E 2.2, Carrera 3.0, 986 Boxster S. Current car is 997.2S Manual (with PSE, H&S Backbox bypass, Sports Chrono, SSK, Carrera Sports wheels, Sport Design steering wheel etc.)
 
  
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James M-S
Imola


Joined: 11 Apr 2017
Posts: 867
Location: Derbyshire

2009 Porsche 997 Carrera 2

PostPosted: Tue Feb 19, 2019 9:58 pm    Post subject: Reply with quote

You check on another cars reflection at 70!
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MarkC4S
Monza


Joined: 05 Jul 2016
Posts: 171



PostPosted: Wed Feb 20, 2019 9:01 am    Post subject: Reply with quote

James M-S wrote:
You check on another cars reflection at 70!


Need a new phrase for this unusual activity - "Bonnet-gating" or "nose-gating"?

Very Happy
 
  
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sat Feb 23, 2019 11:52 am    Post subject: Reply with quote

James M-S wrote:
You check on another cars reflection at 70!


My girlfriend did Floor
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sat Feb 23, 2019 11:57 am    Post subject: Reply with quote

deMort wrote:


I would tend to say get an indy to have a bit of a look and diagnose it as theres very little i can say that will help you im afraid .


Thanks deMort, I’ll do what you suggested. I’ve booked appointment on 05/03 to local indy. He is not a mechanic, more like electrical and AV field but we’ll known on 993 forum.

Will let you know the results after.

Thx Smile
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Sat Feb 23, 2019 12:06 pm    Post subject: Reply with quote

systech1 wrote:


If you want to DIY, I can confirm that the Foxwell NT510/520 diagnostic tool (around UKP 100 or so) can code it to either Fixed or Lifting


Thanks systech1, I’ll get that in future for sure at the moment I willl go with deMort suggestion as I’m not feeling very comfortable with IT stuff, I’m 43 you see PC Very Happy but yes, definitely it the future it’s not really expensive and it’s handy to have it.
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Wed Mar 06, 2019 7:29 am    Post subject: Reply with quote

Checkmate wrote:
deMort wrote:


I would tend to say get an indy to have a bit of a look and diagnose it as theres very little i can say that will help you im afraid .


Thanks deMort, I’ll do what you suggested. I’ve booked appointment on 05/03 to local indy. He is not a mechanic, more like electrical and AV field but we’ll known on 993 forum.

Will let you know the results after.

Thx Smile


deMort, I went to Indy yesterday but only faults he could find it was C152 and 8007, he couldn’t find anything that is directly related to faulty spoiler. Not sure what to do now.
- fuses ok
- no power supply to spoiler motor
- no codes
- clean and dry under passenger seat
Dont know
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jonno_
Spa-Francorchamps


Joined: 29 May 2014
Posts: 347
Location: Oxfordshire

2005 Porsche 997 Carrera 2S

PostPosted: Wed Mar 06, 2019 8:58 am    Post subject: Reply with quote

Has it worked ever in your ownership?
Could have been an aero car with wing removed but not coded back and hence no error.
Handling will be off-spec at higher speeds with lack of downforce.
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Checkmate
Trainee


Joined: 23 Aug 2015
Posts: 75
Location: London


PostPosted: Wed Mar 06, 2019 11:32 am    Post subject: Reply with quote

jonno_ wrote:
Has it worked ever in your ownership?
Could have been an aero car with wing removed but not coded back and hence no error.
Handling will be off-spec at higher speeds with lack of downforce.


Yes it did work of 3,5 years with no problems
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jonno_
Spa-Francorchamps


Joined: 29 May 2014
Posts: 347
Location: Oxfordshire

2005 Porsche 997 Carrera 2S

PostPosted: Wed Mar 06, 2019 1:24 pm    Post subject: Reply with quote

Ok, sounds likely the coding is corrupt then, unless those error codes indicate while rear controller is shot. Think that would cause other issues though.
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timbo1811
Trainee


Joined: 13 Dec 2016
Posts: 80
Location: Dorset


PostPosted: Wed Mar 06, 2019 5:16 pm    Post subject: Reply with quote

Its strange that the spoiler doesn't work with the switch, not sure how its wired, does the switch have power? There may be a relay somewhere you could change.
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6171
Location: Brighton


PostPosted: Wed Mar 06, 2019 8:09 pm    Post subject: Reply with quote

C152 .. is an airbag code saying it cant comunicate with the PSM .. its a flat battery type of code and if it clears then can be ignored .. nothing to do with your fault .

8007 is another airbag code to do with the head airbag being unplugged .. again nothing to do with your fault .

Im a little concerned that an Indy has said yup there is a fault but we have no idea what it is ..

We are still in the dark as to wether they have checked coding , is it actually coded on or off .. you do a vehicle handover with a tester , you code the item off then on , lock the car , unlock it and test .

Can they drive link it .. in other words get it to operate it with a tester .

The unit its self seems to be operated by a control unit according to the wiring diagram , you would at least check the wires to the motor , check for feeds , continuity etc ..... my feeling its software related due to no warning message ..

The Garage seems to have not been that usefull .

Im afraid i dont have any answers unless you want a hell of a long trip to me so i can look at it .. plenty of things i would do if i had the car and a tester hooked up but im afraid im stumped atm being unable to get at the car Sad

Are there any other garages you can use ?
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