99 catera won't start. VTD system/security. New key doesn't work?
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Cadillac Catera and Cimarron Forum Discussion, 99 catera won't start. VTD system/security. New key doesn't work? in Past Cadillac Vehicle Discussion; I have a 1999 Cadillac catera 3.0L. Bought it from an auction, no stereo.. car didn't come with a key ...
  1. #1
    Drethib is offline Cadillac Owners Member
    Automobile(s): 1999 Cadillac catera
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    99 catera won't start. VTD system/security. New key doesn't work?

    I have a 1999 Cadillac catera 3.0L. Bought it from an auction, no stereo.. car didn't come with a key so I had one made. I had a dealership from out of state to get a local locksmith/security outfit to program one. The key will not start the car. I have access to a high end snap-on code reader and it tells me it's the wrong code. P1503 is the DTC that pops up. Did they make me a key with the wrong code? I'll post pictures of what my scanner was telling me here soon

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    investor74 is offline Cadillac Owners Enthusiast
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    Did you just get the key part? A Catera will not start with just the key even if it is the correct key for the car. You must have a transponder attached to the key which has been programmed to the car's computer.

  4. #3
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    It's Supposed to be a chip key. That is what you are referring to when you say transponder correct? I was told if it wasn't the dash security light would flash. I will get back to you on that one though. Don't remember if it was flashing or not.

  5. #4
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    The HU is part of the serial data bus and anti theft system. It's very possible that the missing HU is the problem.

  6. #5
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    Here are some of the screenshots from the snapon scanner.. There are a couple others I have to downsize yet.
    Attached Images

  7. #6
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    How do I diagnose the HU?

    ----------

    And MiL isnt displayed on the dash if that helps at all.

  8. #7
    MoistCabbage's Avatar
    MoistCabbage is online now Cadillac Owners 10000+ Posts
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    Diagnose? You said it doesn't have one.

    HU = Head Unit = Stereo

  9. #8
    investor74 is offline Cadillac Owners Enthusiast
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    Try this: Turn the key to the run position. Wait approximately two seconds, then try to start the car again.

  10. #9
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    Ya I had a suspicion about the stereo missing. I'll give the 2 second wait a try.

  11. #10
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    Still no start after the 2second delay.

    ----------

    Is there a way to wire it or fix the issue without an original HU? If that's the case

  12. #11
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    I'm gonna go ahead buy a stereo on eBay that is oem to my czar and see if that will help. Is there anything I should know or do before or while installing Or is it just plug in and play?

  13. #12
    MoistCabbage's Avatar
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    You're going to have to have it programmed with a TECH II.

  14. #13
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    98Catera_2010 is offline Cadillac Owners Fanatic
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    Last time i called and checked at my local caddy dealer about marrying a bose radio i have and its alot of money. If i remember correctly it was 150 to un marry previous and marry new one to the car. I want a bose so bad but not that bad. And don't want to buy aftermarket because i would lose my wood grain that surrounds my current stock tape deck one.

  15. #14
    MoistCabbage's Avatar
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    You can't add JUST the Bose HU anyway. Won't work without its amp, specific speakers, and wiring.

  16. #15
    Drethib is offline Cadillac Owners Member
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    Re: 99 catera won't start. VTD system/security. New key doesn't work?

    Ok good to know. So.. What are my options. Lol my dad and I have tried countless things to gets these injectors to spit fuel. But with the theft system still locking us out.. I'm in the dark and need someone to shed some light on me about the VTD system. Diagrams wiring pictures walktgroughs? Anything pertaining to the vehicles theft system would be helpful. Thanks!
    Sincerely, locked out in Alaska.
    STARKENVONOBEN likes this.

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