Jump to content

The RennTech.org community is Member supported!  Please consider an ANNUAL donation to help keep this site operating.
Click here to Donate

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)

Anti-Lock and ABD Lights On

Recommended Posts

I have a 1995 911 (Model 993) with 102,000 miles. Periodically the Anti Lock and ABD warning lights come on--could be at any speed and the problem is intermittent. If I turn the ignition off and restart the engine, the lights usually go out. And I have confirmed the antil lock is working when the lights are out and not working when the lights are on. Could this be a relay problem?

Is there a simple way to test the relay?

(FYI, I just replaced a defunct fuel pump relay.)

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

Could be a fault with a pressure accumulator. They can't hold a pressure charge and the pump has to intermittently recharge the system pressure which cause the light to be on and off. You can also have the ABS system checked for codes.

Link to post
Share on other sites
  • 1 month later...
  • 7 years later...
  • Admin
3 hours ago, 911series said:

I have the same problem with 993 TT  ABS and ABD light on .

Fault code is (intake valve )

Anybody know where is the intake valve ? How to solve this problem ?



It would be helpful if you would post:

Exact model and year of the car

Exact fault code(s)

Link to post
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.