Jump to content

Server Lease Renewal/Software Licenses

Our yearly server lease, software licenses, as well as hardware operating costs, ARE due Dec 6th, 2021. 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)

No 12VDC to acc fuse, and engine won't crank

Recommended Posts

Installed a AVIC D3, operated it fine before mounting after I'd done all the wiring, and had to leave town for a few days so I left it sitting still hooked up but not installed. Came home - doen't play and car won't start. Panel lights up but no crank at all. Battery is fine. ACC fuse blown. Replaced but still no crank, and no power to acc socket either. Using a DMM I find no 12VDC at the acc socket with the fuse removed. Like something big popped and even though it blew the fuse it took out something else? Would this stop the car from cranking? Seems more like some immobilizer feature, like maybe my key programming got erased or something. Even changed the ignition switch but no change in problem. Help?

Link to comment
Share on other sites

I don't know about the ACC being dead, but twice now I've been in the situation where my dash would light up (and headlights, and the roof worked fine) but the engine wouldn't crank.

It turns out that my huge size-13 boots keep catching one of the wires to the clutch interlock switch. If the wire becomes disconnected, the car will think you're not pushing the clutch and hence won't turn over. (I'm assuming you have a manual transmission.) It's a little brown wire, easily accessible under the dash. Just follow the clutch pedal up and you'll see it. Let me know if you need a photo.


John Wink

Link to comment
Share on other sites

You may want to check the following fuses related to

-Central locking/alarm system control unit, engine electronics control unit

-or Terminal 86s: Instrument cluster, radio, central locking/alarm system control unit, info system, roll-over-sensor control unit

When I first bought my car, the previous owner had the XM power spliced from the factory radio. Since I didn't subscribed to XM, I decided to add some accent lightings to the footwell area drawing from the same power source. What happen was I heard a pop and same thing happened to my car. You get the gauges lit up but the car doesn't turn over. So I checked every single related fuse I could find, and eventually the culprit had to do with some radio alarm fuse that blew. So check thoses fuses above and look at your fuse box diagram to see if there are any other possible fuse that are related to alarm or radio and check them too. I pulled 4 fuses out before I found the one that was broken. Needless to say, I removed the XM and the accent lightings and removed the spliced wire to insure I didn't draw any additional power from there again. No problems ever since. Good luck.

Edited by trieullionaire
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.