Jump to content
×

Server Lease Renewal/Software Licenses
Our yearly server lease, software licenses, as well as hardware operating costs were due Dec 6th, 2017. Our current donations have fallen short of the funds we need to renew. Please consider a donation to help keep this site running...  THANK YOU

DONATE HERE

×

 

Welcome to RennTech.org Community, Guest

There are many great features available to you once you register at RennTech.org
You are free to view posts here, but you must login to reply to existing posts, or to start your own new topic. Like most online communities, there are costs involved to maintain a site like this - so we encourage our members to donate. All donations go to the costs operating and maintaining this site. We prefer that guests take part in our community and we offer a lot in return to those willing to join our corner of the Porsche world. This site is 99 percent member supported (less than 1 percent comes from advertising) - so please consider an annual donation to keep this site running.

Here are some of the features available - once you register at RennTech.org

  • View Classified Ads
  • DIY Tutorials
  • Porsche TSB Listings
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • and get rid of this welcome message

It takes just a few minutes to register, and it's FREE

Contributing Members also get these additional benefits:
(you become a Contributing Member by donating money to the operation of this site)

  • No ads - advertisements are removed
  • Access the Contributors Only Forum
  • Contributing Members Only Downloads
  • Send attachments with PMs
  • All image/file storage limits are substantially increased for all Contributing Members
  • Option Codes Lookup
  • VIN Option Lookups (limited)
Scouser

In-dash Spoiler (Tail) Switch Mod

Recommended Posts

In-dash Spoiler (Tail) Switch Mod


Note: Part numbers sometimes change without notice. Always double check with your supplier that you have the latest part numbers.

The switch is part number 996.613.155.00 A02 for a switch installed on the left side of the dash and 996.613.156.10.A05 for a switch installed on the right side of the dash. Like other dash switches it has a raised portion on one side. When you order the switch, ensure you specify which side you want the raised portion according to which side of the dash you are installing it into. These install procedures assume you will be placing the switch in the unused dash socket below the PSM switch on a RHD car. For LHD cars, the PSM switch is on the left side of the dash and the raised portion of the tail switch should also be on the left (as shown in the picture). For RHD cars, the PSM switch is on the right of the dash and the raised portion of the tail switch should also be on the right. Take care that you order the correct tail switch for your car.

Parts you will need:
1 ea 996.613.155.00 A02 (or 996.613.156.10.A05) Spoiler Switch
5 ea Female connectors
5 feet (1 length) Connector cable
2 (3 inch length each) 14 gauge wire
few Cable ties

Tools you will need:
Phillips head screw driver
Blunt flat blade to prise the switch tab (I used a butter knife)
Wire cutters
Crimping tool
Soldering iron Remove the cover from the fuse box. Then carefully remove the four screws pointed out in the picture. Ensure the screws do not fall into the fuses else you may start a fire! (The fusebox is located in the drivers side footwell.)
Once the screws are removed, pull away the carpet trim around the fuse box.
You will be cutting into the wiring loom connected to the existing spoiler (tail) switch. The switch is the black square item located in the bottom left corner of the fuse box.
Note: The installation of the new in-dash tail switch does not effect operation of the existing spoiler (tail) switch. It is simply wired in parallel to it.
I have used a mirror here to show you the back of the fuse box. Pull the connector from the switch. It has no clips but it may be quite hard to pull off. Be careful not to pull the wires out of the connector. DO NOT use a metal implement to pry it off. If you rock it from side to side while pulling, it will eventually come off the switch.
Here you can see the connector pulled away from the switch. The connector has three wires: Green/black, Brown/Green and Brown.
Carefully cut the 3 wires going to the connector. Ensure you do not short the wires as you cut them. Leave a long tail on the wires at the connector as you will need to splice them back later
Use a blunt blade to carefully pry out the switch tab holding the PSM switch in the dash.
I used alarm wire in a single cable. You need 3 cores in the cable and it needs to be about 5 feet long. Feed it through the opening for the PSM switch tab. You can see in the picture where you can feed it through the back. Push the wire through so that you can grab it from underneath the dash and feed it along within the dash to bring it out behind the fuse box.
Carefully cut the 3 wires going to the connector. Ensure you do not short the wires as you cut them. Leave a long tail on the wires at the connector as you will need to splice them back later
Fit the new tail switch into an unused slot. Usually the one below the PSM. Place the connectors as shown on the switch. Make a note of the colour coding you use and which switch terminals you put them on. I used red, brown and black wires in this configuration.
Next you will wire up the tail switch light. Use two 14 gauge wires cut to about 3 inches. I used blue and brown wires. Strip both ends of the two wires. Crimp a female tag onto one end of each wire. Connect the tags on these wires to the two outer (remaining) tail switch tags. Pull off the connector from the back of the PSM switch. Insert the blue wire onto the left most PSM switch tag (blue/pink/brown connection wire). Insert the brown wire onto the top PSM switch tag (red/blue connection wire). Ensure the inserted wires are not shorting any other tags. Push the PSM connector back into place with the inserted wires.
One way to do this is to cut the bare ended wires short and feed them through the tag holes before pushing the connector back on to the PSM switch.
At the switch box end, feed a 1 inch piece of heat shrink sleeve onto each of the 3 exposed loom wires. Push the sleeves along to expose the bare wires. Pre-solder each end on all exposed 9 wire ends. Then solder the loom wires back together while at the same time splicing the new wires into the loom. The 9 wires comprise 3 from the original Spoiler (tail) switch connector, 3 in the loom that you cut from the tail connector and 3 that you have just wired in from your new tail switch.
The wires are soldered as follows:
red -> red/green
black -> green/black
brown -> brown
Check the solder joints. Push the sleeving over the joints and use the soldering iron to heat the sleeving so that it shrinks around the solder joints. Ensure no strands of wires or solder is protruding from the sleeving.

Refit the connector back to the original fuse box spoiler (tail) switch.
It is important to tidy up your cabling. I used cable ties to ensure the cables don't rub on anything sharp.
Before refitting the switch tab, test that your newly installed in-dash tail switch works. Also test that the switch light works when you turn your side lamps on (with ignition on of course). Finally, replace the switch tab in the dash, push the fuse box surround carpet back into place and replace the 4 screws.
Job done.

 

 

Edited by Scouser

Share this post


Link to post
Share on other sites
    You can remove these ads by becoming a Contributing Member.

Nice - But here is a stupid question -- If you pop the spoiler up (under 75 mph) it will go up what happens when your speed drops to below 30 (or maybe 35) does it just go back down again - ?

ie Its not possible to see back of car when driving..

I had the impression that when you use the foot switch to pop up the spoiler it just comes down again when you slow down .. As your switch is just in effect a switch moved from one place to another will it still behave the same ?>

thanks

Share this post


Link to post
Share on other sites

I did the mod and it worked great except the light tie-in with the PSM switch. It lights the spoiler switch up but when you turn PSM 'off' it turns the spoiler switch backlighting off and the backlighting doesn't come on when the lights are turned on; only once the car is started. I wonder if there is a different switch to tie into in order to get the backlighting to work?

Share this post


Link to post
Share on other sites
I did the mod and it worked great except the light tie-in with the PSM switch. It lights the spoiler switch up but when you turn PSM 'off' it turns the spoiler switch backlighting off and the backlighting doesn't come on when the lights are turned on; only once the car is started. I wonder if there is a different switch to tie into in order to get the backlighting to work?

Hello! I also had the same problem with a friend's 2004 986S. You should tie the illumination of the Rear spoiler switch to a switch that only has dashboard illumination & does not have an additional light (i.e. not PSM, Rear windshield heating, Central locking) such as Rear Wiper, Roof Opan/Close etc.

Nikos.

Share this post


Link to post
Share on other sites

Scouser,

my dealer (Wilmslow) are advising me that there are 2 port numbers for the RHD switch:

996.613.156.00.A02 for the 01 model

996.613.156.10.A05 for 02 and onward.

My C4 is year 00.

Do you know which switch I should order?

Thanks.

Share this post


Link to post
Share on other sites

The switch was originally for a 2001 turbo so that is the reason for the 01 model listing. That year had gloss switches. A02 is the color code for a gloss switch. That is the one you need for your 2000 C4 since it also has gloss switches.

In 2002 the switches had a matt finish. A05 is the color code for matt, and that is why it is for 2002 onward.

Share this post


Link to post
Share on other sites

Section 7 - prying out the PSM switch and it's surrounding bezel...

From which point do I do the prying out, so as not to exert pressure in the wrong place?

Thanks.

Share this post


Link to post
Share on other sites

Scouser,

excellent article - helped me enormously, once I managed to prize the switch surround away from the dash. Eventually found a nice little tool for doing this (used to use it for opening up CRTs in a previous existence!).

However, all my switch connections were reversed. The switch I bought was 996.613.156.00.A02, and I double checked & rechecked your instructions before starting. Anyhow, once I reversed them, everything worked (switch illuminated, and spoiler went up/down corresponding to the image on the switch where prior to this it was working but the wrong way round!).

Thanks again.

Share this post


Link to post
Share on other sites

I am looking at installing a motorola bluetooth kit in my 2001 996 cab (looks like the same kit hspiva used here http://www.renntech.org/forums/index.php?s...luetooth+phone). I was thinking about taking apart the control unit (circled in red)

motorola-control-unit.jpg

and hijacking some tip switches to perform the functions of this device. I have 3 blanks on my car (no PSM :o ) and this would take care of the 3 controls, but there is a volume control that I'm not sure what I should do with. I was wondering if anyone knows whether it is likely this would be a successful venture?

So, some of the questions I have are...

  • Do you think tip switches would work?
  • Are there any blank tip switches that i could paint/decal myself?
  • I'm not sure what else I don't know to ask...

Thanks for your thoughts!

--Ben

Share this post


Link to post
Share on other sites

I had the same thought as Ben regarding the swithces. I even found a site offering an interface kit to play the Motorola BlueTooth (HF1000, I think) thru the Porsche sound system. Decided it was way too hard to justify for my limited amount of car phone use.

BUT...would likely buy it if a smart guy put together a kit with (or for) Porsche switches for a reasonable price.

Share this post


Link to post
Share on other sites
Hi Chaps,

Im a little confused with the part numbers. Can someone tell me what I need for a switch to fit to the left of the radio, with a matt finish(2002)

Thanks.......

:welcome:

You need : 996.613.155.00 A05

Thanks Loren. Great forum btw :D

Share this post


Link to post
Share on other sites
Hi Chaps,

Im a little confused with the part numbers. Can someone tell me what I need for a switch to fit to the left of the radio, with a matt finish(2002)

Thanks.......

:welcome:

You need : 996.613.155.00 A05

Thanks Loren. Great forum btw :D

Sorry, is there something i have not understood ? Because in the first post, i read : "The switch is part number 996.613.155.00 A02 for a switch installed on the left side of the dash "

Thanks.

Share this post


Link to post
Share on other sites
Hi Chaps,

Im a little confused with the part numbers. Can someone tell me what I need for a switch to fit to the left of the radio, with a matt finish(2002)

Thanks.......

:welcome:

You need : 996.613.155.00 A05

Thanks Loren. Great forum btw :D

Sorry, is there something i have not understood ? Because in the first post, i read : "The switch is part number 996.613.155.00 A02 for a switch installed on the left side of the dash "

Thanks.

The finish on the early cars switches was glossy - later cars had switches with a matt (flat) finish.

You need to get the one that matches the other switches ion your car.

Share this post


Link to post
Share on other sites

Thank you Gents! Nice mod. I have an 01 996, and with help, I have added led rear brake lights (spoiler and center light), short shifter ($50 off of ebay), aluminium shift linkage (agency power), and in-dash spoiler switch. What a fun car.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


×