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)

Recommended Posts

Posted

On first brake application after each engine start both the ABS and the PSM Off fault lights on the dash come on. Just wondering if anybody knows what could be the cause of this before I take the car to a dealers? Many thanks in advance for your help.

It's a 2001 996 C4 coupe 6 spd.

  • Admin
Posted

If you live in the US take the car to an Autozone or other parts supply business and get your fault codes read for free.

Check for a P0102 fault. P0102 is the same error you will get if the MAF is unplugged. This can also cause ABS and PSM lights to come on as the DME is not sensing the PSM data and combining it with the throttle position and mass air flow readings.

Posted (edited)
On first brake application after each engine start both the ABS and the PSM Off fault lights on the dash come on. Just wondering if anybody knows what could be the cause of this before I take the car to a dealers? Many thanks in advance for your help.

It's a 2001 996 C4 coupe 6 spd.

This will be caused by the brake light activation switch being faulty. This sits behind the bottom of the dash over the brake pedal. They're notorious for failing on pre-facelift cars - I even used to keep a spare in the car!! No problem with the current car so maybe they were changed for 2002.

The part is cheap, fitting time is approx 1 minute.

Hope this helps

Ian W

Edited by ianwallwork

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.