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Electrical field in and around car

Discussion in 'Model S: Interior & Exterior' started by gilbert, Aug 22, 2013.

  1. gilbert

    gilbert New Member

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    I live in a condo that has an access control using an HID Prox Pass II. It activates the gate when the pass is within 24 inches of the reader. It works fine on all model cars and under all conditions. However, it does not function with my model S and after several replacement cards, I determined that the car damages the card and they can no longer be used at all. The system involves 125KH. My theory is that the car emits some sort of electric field upon approach that effects and damages the pass card. The technician at HID and Tesla never heard of the problem but both said it is a possibility. Any thoughts/suggestions?
     
  2. CalDreamin

    CalDreamin Member

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    I wonder if you could protect the card by wrapping it in Mylar film except for the brief time you need it near the reader.
     
  3. artsci

    artsci Sponsor

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    #3 artsci, Aug 22, 2013
    Last edited: Aug 22, 2013
    I can't imagine the car is damaging the card. i have the same kind of HID Prox Pass II card to access my parking garage at work and I use it every day without any issues. Can you think of anything else that could effect the card, like where you store it when it's not in use?
     
  4. yobigd20

    yobigd20 Well-Known Member

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    maybe they're just trying to keep you out :p
     
  5. gilbert

    gilbert New Member

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    Prox pass

    I keep the card mounted on the driver side post and it remains in the car. Is your pass used the same way or do you keep it with you?
     
  6. artsci

    artsci Sponsor

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    '
    I keep it in the car, in the CCI storage bin.
     
  7. olanmills

    olanmills Member

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    Yeah I also have no problem with multiple HID cards I use/have used while driving the Model S, but I have only used the kind of card you need to hold in your hand and move close to the reader, not one that can be read from far away.

    I wonder if there is an interference issue, but maybe not actual damage?
     
  8. EarlyAdopter

    EarlyAdopter Active Member

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    I have a HID card for accessing the garage at work. I normally carry it in my pocket. 8 months of having it in the Tesla and no problems with it dying.
     
  9. NigelM

    NigelM Recovering Member

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    I have a card that I keep in my wallet but it's still fine after almost 11 months with Model S.
     
  10. gilbert

    gilbert New Member

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    The cards are damaged and cannot be re-programmed. I have gone through 3 cards at $30 each. The hand-held cards work fine so I think the electronics contained inside the ProxPass II passes are being damaged

    - - - Updated - - -

    I am referring to the pass, not the card. The card works fine.
     
  11. Tommy

    Tommy Member

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    Here is my best guess as to what the problem is. I believe the ProxPass II pass has batteries in it and is considered "active" rather than the "passive" type of cards that do not require a battery to operate. My hunch is the S is activating the circuitry in the ProxPass II causing the batteries to drain. Similar to the FOB key battery draining if left in the car. Maybe contact the ProPass II manufactuerer and see if they are aware of the problem. Maybe a timeout circuit can be added if indeed this turns out to be the cause.
     
  12. Discoducky

    Discoducky Active Member

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    Take a known good device (that means something that is new, is proven to work while holding in your hand and has new batteries) and try it another car by holding it in your hand. Then walk to your Model S and try again. And if you are bold, video the whole thing. Then we help debug.
     
  13. gilbert

    gilbert New Member

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    The Proxpass II works fine by holding in my hand and works fine in any other car. It also functions properly when mounted on the column of my Tesla S. But after a few days, it stops working. It is not the batteries. I think it is the result of some electrical field damaging the internal electronics contained inside the pass. People at Tesla and HID feel that it is a possibility but can offer no explanation.
     
  14. wcalvin

    wcalvin Member

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    Sounds like it is being repeatedly interrogated all night. Park farther from the gate?
     
  15. markb1

    markb1 Active Member

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    I just think this is extraordinarily unlikely. I can't think of any cases were electronics were permanently harmed my electric fields.
     
  16. hans

    hans P631

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    Speaker magnet maybe? What do you mean by "mounted on the column"? Do you mean the A pillar, rear view mirror, center console?
     

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