Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, WERE due Dec 4th, 2022. Our current donations have fallen far short of the funds we need to renew. Please remember the RennTech.org community is Member supported so please consider a donation to help...  THANK YOU!

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 log in 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 (limited)
  • VIN Decoder
  • Special Offers
  • OBD II P-Codes
  • Paint Codes
  • Registry
  • Videos System
  • View Reviews
  • 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)

Disabling Roof Sensors - 1999 Boxster

Recommended Posts

Hi All,

I've got a 2.5 litre 1999 Porsche Boxster, and my roof is behaving a bit weirdly. Sometimes, when I push the button to operate the roof, NOTHING happens. Other times, it works fine. There seems to be no clear reason for this. I suspect that it's some kind of safety sensor intended to stop me from messing with it at the wrong time, that's possibly gone screwy. I'd really like to know if it's possible to find and bypass these roof safety sensors? Of course, I'd still need the one sensor that detects the roof cycle complete so that it shuts down the pump at the right time...


Link to comment
Share on other sites


There is a pin you can bend down (#17 ???) to disable. It has been covered multiple times, try search. I'd try unseating and re-seating the relay, it is large double sized above your left foot in a US car. Maybe some connector cleaner.

Link to comment
Share on other sites

  • 2 weeks later...
  • 1 month later...

Ah!! bendemora, you seem to be on the same path I am!

I have a '97 2.5litre right hand drive 986 boxster. My problems is I've been hit by the dreaded intermittent dropping windows when the cabrio top is up for quite some time. I've tried tightly securing and cleaning the latch microswitch as per advice in previous threads, but it seems to happen again after some time. Most recently, I epoxy'd the microswitch to the latch recepticle, but it doesn't help despite being firmly in place. I've noticed that the windows do not drop when I remove the cabrio relay, only trouble is, I can't put the top back down until I plug it back in.

To save the hassle of doing this manually, I want to connect a switch from the power supply wire that feeds the cabrio relay so that I can flick it to simulate removing the relay, and putting it back by turning on the switch. Guess that's what you want to try too?

Trouble is, I don't know which wire I should splice the switch to? Using a multimeter, there seems to be 2 supplies at 13.5V and 1 supply at 12.5V with the relay taken off.

I'll probably start a new thread on my problem if it's not the same solution you are looking at.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.