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  1. #1
    Member CadillacSam's Avatar
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    Cadillac XLR

    2004 Thunder Gray

    Question LOST... Refer to Battery Negative Cable Disconnection and Connection

    Hi.

    Like I mentioned in another post I'm searching the chapter "Battery Negative Cable Disconnection
    and Connection" cause my alarm turns on once I disconnect the battery.

    I got the GM service manual but can not find this? Maybe I'm too stupid for this...

    Dozens of "Refer to Battery Negative Cable Disconnection and Connection" sentences everywhere but on which
    side is this chapter??

    Thanks a lot for your help.

    Sammy


  2. #2
    Pit Crew Fireduck69's Avatar
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    Cadillac XLR

    2007 Black XLR-V

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    Iím thinking you have an aftermarket alarm system in your car as the XLR doesnít come with one. You need to find the documentation for your alarm system.

  3. #3
    Member CadillacSam's Avatar
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    Cadillac XLR

    2004 Thunder Gray

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    Quote Originally Posted by Fireduck69 View Post
    Iím thinking you have an aftermarket alarm system in your car as the XLR doesnít come with one. You need to find the documentation for your alarm system.
    This car is 100% Original, it was pre owned by an old man who surely never changed anything on it.
    Didn't know this siren until I heard it: Open the trunk, open the hood, disconnect the negative cable and voila...
    It has ultrasonics detection, so why no system for the trunk open?

  4. #4
    Pit Crew Popbigguy's Avatar
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    Cadillac XLR

    2007 XLR-V RII'07 RIII'08 SA'09 CO'10 NCSC'11 PA'12 BG'13 MT'14 VBOBX'15

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    Never heard of this!! You must have a after market system.

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  6. #5
    Member CadillacSam's Avatar
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    Cadillac XLR

    2004 Thunder Gray

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    I think it's factory standard maybe only on export vehicles - this is a European model.

  7. #6
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    Cadillac XLR

    2004 Black Raven

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    The alarm can go off on ANY XLR if it is armed and you have opened the door using the emergency dead battery procedure, since the door was opened without using the key fob. I had it happen to me, and I assure everyone my XLR has the standard theft deterrent system. If the alarm goes off when you reconnect the battery, Sammy, shut if off by pressing the unlock button on your key fob. If that doesn't do the trick, there's a chance you have an issue with communication between the remote and the car.

    "Disarming the System
    Always use your keyless access transmitter to unlock a
    door either by pressing the unlock button on the
    transmitter or by squeezing the door handle sensor
    while you have the transmitter with you. Unlocking a
    door any other way will set off the alarm. If your alarm
    sounds, press the unlock button on the keyless
    access transmitter to disarm it." -2004 XLR manual, Section 2 page 18
    Cadillac-Jackģ
    Philadelphia, PA


    http://oi61.tinypic.com/3010zfo.jpg

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  9. #7
    Member CadillacSam's Avatar
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    Cadillac XLR

    2004 Thunder Gray

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    Quote Originally Posted by Caddyjack View Post
    The alarm can go off on ANY XLR if it is armed and you have opened the door using the emergency dead battery procedure, since the door was opened without using the key fob. I had it happen to me, and I assure everyone my XLR has the standard theft deterrent system. If the alarm goes off when you reconnect the battery, Sammy, shut if off by pressing the unlock button on your key fob. If that doesn't do the trick, there's a chance you have an issue with communication between the remote and the car.

    "Disarming the System
    Always use your keyless access transmitter to unlock a
    door either by pressing the unlock button on the
    transmitter or by squeezing the door handle sensor
    while you have the transmitter with you. Unlocking a
    door any other way will set off the alarm. If your alarm
    sounds, press the unlock button on the keyless
    access transmitter to disarm it." -2004 XLR manual, Section 2 page 18
    I don't know if we are talking about the same issue.

    So let's go through this step by step:

    1. I open the trunk with key fob or button (battery connected)
    2. Open the hood, disconnect the battery to unmount convertible pump
    3. A "second" siren coming from the rear turns on
    4. Pressing a button on the fob will not stop it, cause the battery is still disconnected
    5. I reconnect the battery. The siren in the back stays on and additional horn alarm under the hood turns on, too
    6. Now I can disable both alarms with the key fob cause battery is connected again

    So no chance to turn alarm off via key fob with battery disconnected.
    Maybe my English is not so good, that I understood it wrong (I'm from Germany) :-)

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