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)

Recommended Posts

I'm trying to diagnose an alarm double beep issue and a "gone crazy" central locking switch. Part of the troubleshooting steps involve testing the switch, which is supposed to have 5Ω between two of its terminals when the switch is activated, and ∞ when not activated. Assuming I've read the writing diagram correctly to get the pin numbers of the switch, this does not seem to be the case. The local dealer does not have a replacement switch in stock, and I was thinking of trying one of the other switches with a built-in LED (like the PSM one) instead. So my question is are all of the switches with the built-in LED electrically the same? Obviously, I can test the function of the PSM switch using a multimeter to verify, but thought I'd ask here first.

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

The answer seems to be no when I check with a multimeter. Also the switches themselves have different numbering (not the part number, which is obviously different): 01 50 1 for the central locking switch and 01 51 1 for the PSM switch.

 

On my central locking switch, I get the following when the switch is not actuated:

Pins 1 & 4: open circuit.

Pins 2 & 4: open circuit

 

With the switch actuated, I get:

Pins 1 & 4: 0 Ohms

Pins 2 & 4: open circuit

 

I've double checked that I'm measuring the correct terminal numbers - they are marked on the switch itself in tiny numbers.

Edited by David Sayed
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.

Guest
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.

  • Similar Content

    • By dyerhaus
      Need some help finding a part number, and for the matter, the name of the part! The picture just shows the passengers side of a piece that surrounds the dashboard (I think its all one part, anyway). It's between the windshield and the dash. Does anyone know what this part is called and what the part number may be? This is for 2001 996 Carrera.

    • By sprocket
      Hi there,
       
      I just picked up my new (to me) 1980 911 SC Targa and now I'm encountering my first glitch.  Both power windows are not working!  the fuse looks good.  Could it be the relay?  is there anyway of testing the relay or do you just have to buy a new one and try?  Any advice is appreciated.
       
      Roch.
    • By shalong
      Hi All! Decided to start a new post but my original post is here if you'd like to follow the saga!
      http://www.renntech.org/forums/topic/45865-car-will-not-lock-with-key-removed/
      My front trunk doesn't work and I'm trying to rule out the electrical switch by moving the cables to each of the other switches. But it is showing really odd behavior. Before I buy another front switch, I want to try and verify that my switch is broken. Here's how I tested:
      First I put the black (rear) on the front trunk switch and tested. Nothing, so I disconected it.

      Next I put the white (front) on the rear switch and tested. To my amazement, it opened the rear trunk.

      So, to recap, either connecter when attahed to the rear switch will open the rear, and neither connecter does anything when connected to the front trunk switch.



      I would not thiink this is the way this works, but...maybe. Can someone confirm that this is true?
      Thanks for any help you can provide!
    • By jmaier
      Hi All,
      I'm looking to replace a few worn out switches in the cabin of my 997 C2. I'm looking online to try to find parts (ie. hood and trunk release switch). What is the best supply source in your opinion, would you still recommend sunset parts for such items as well?
      Thank you,
      J
×
×
  • 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.