Jump to content

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)

Boxer Replaced Wiring Loom

Recommended Posts

Boxer 986 MY2003 2.7 Vari Cam bought as a non runner.


SO car had water leak into footwell and damage/possible internal corrosion to loom.  Some of the common wires had been joined up (black and red).  86s on ignition circuit was dead. 


I have taken the car to bits and replaced the loom with a 2nd hand one. Sadly the 2nd loom is from a more basic car without stability control so different abs connector.


ACU and DME have been replaced and programmed with my cars options and engine.  I am using a durametic which will not currently communicate with the DME.  


I have errors:-




21 W lead (DME Immobiliser)




21 ECM/pcm Processor


The steering wheel and airbags are disconnected and I have also have 21 Drivers AIrbag codes on ignition circuit.


Given that fault code 21 is featuring, could the faults be related?  Do the airbags need to be connected for the car to energise the w lead?

Link to comment
Share on other sites

  • 1 month later...



Not been on the car much due to work and life getting in the way.  I wanted to update to help anyone else in the future.


A number of the faults seem to lead to the fact that the DME is not powering up.  On checking connector A car side that goes into the DME, there is no power.


I have a wiring issue somewhere so need to get the diagrams out.

Link to comment
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
  • 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.