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)

New Airbag CU ... now seatbelt faults


hoggel

Recommended Posts

I replaced the airbag control unit in my 993 with the new one (996 part number). Now my car has faults for both seat belts. How does the CU know it's in a 993 that doesn't have seat belt contacts?

Link to comment
Share on other sites

I replaced the airbag control unit in my 993 with the new one (996 part number). Now my car has faults for both seat belts. How does the CU know it's in a 993 that doesn't have seat belt contacts?

From another forum I learned that the airbag control unit must be programmed via the PIWIS (dealer).

Link to comment
Share on other sites

I'm very surprised it has a 996 part number. I thought the 993 used a different generation of air bags then the 996. What was your old part number on the control module and how did you determine the ECU was at fault?

Link to comment
Share on other sites

I'm very surprised it has a 996 part number. I thought the 993 used a different generation of air bags then the 996. What was your old part number on the control module and how did you determine the ECU was at fault?
There is a TSB, 6863, that replaces the 993 part number with the 996 unit. I had two 993s. I went to pick up one of the cars from an inside storage place. The car had a dead battery even though it was supposed to have my battery tender on it I think they had tried to start the car with one of those booster packs. They denied it but after I got the car started the airbag light was on. I was taking it to the shop for some other work and asked them to fix the airbag issue. They ordered a CU from a dismantler but the one they received didn't work. In the meantime I sold the car so had to take the CU out of my second 993 in order to ship the sold car. That CU was a 993 PN. When I put the new CU (996 PN) in my remaining 993 the airbag light stayed on. I verified with PN with Sunset. I used the Durametric tool to check the airbag DTCs. The CU must be accessed as 996. And that's how we got to the post above. sorry about the typos and grammar posting from mobile. Edited by hoggel
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.