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Cadillac CTS First Generation Forum - 2003 - 2007 Discussion, battery drain in Cadillac CTS Coupe, Sport Sedan and Sport Wagon Forums; I have a battery drain when the car sits for 2 days. It is not the overhead switch, I unplugged ...
  1. #1
    stansikkema is offline Cadillac Owners Member
    Automobile(s): 2007 CTS
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    Exclamation battery drain

    I have a battery drain when the car sits for 2 days. It is not the overhead switch, I unplugged it and it still drained. Are
    there any other Ideas why the battery would drain.

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  3. #2
    arogers260's Avatar
    arogers260 is offline Cadillac Owners Enthusiast
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    Quote Originally Posted by stansikkema View Post
    I have a battery drain when the car sits for 2 days. It is not the overhead switch, I unplugged it and it still drained. Are
    there any other Ideas why the battery would drain.
    Could possibly be the factory amp, if its not the overhead console your gonna have to get it to someone with the right tools to pinpoint the location. Let them keep it till it drains the battery to find out what's causing it.

  4. #3
    DavidBoren's Avatar
    DavidBoren is offline Cadillac Owners Fanatic
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    Re: battery drain

    Make sure you do not have anything plugged into the cigarette lighters... I guess they are not cigarette lighters anymore, are they? Whatever they are, the 12v accessory ports do not shut off with the key, so if you have an iPod charger plugged in, it will charge without the car being on.

  5. #4
    stansikkema is offline Cadillac Owners Member
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    Re: battery drain

    nothing is plugged into the outlets

  6. #5
    arogers260's Avatar
    arogers260 is offline Cadillac Owners Enthusiast
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    Quote Originally Posted by DavidBoren View Post
    Make sure you do not have anything plugged into the cigarette lighters... I guess they are not cigarette lighters anymore, are they? Whatever they are, the 12v accessory ports do not shut off with the key, so if you have an iPod charger plugged in, it will charge without the car being on.
    Mine only stays on for like 10 mins after the car is off. There is a way to change it to always on and most likely a way to change it to how mine is in the stickies.

  7. #6
    Kingoftypos is online now Cadillac Owners Master
    Automobile(s): 06 CTS Sport/Luxury package
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    How old is the battery?


    KOT

  8. #7
    stansikkema is offline Cadillac Owners Member
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    Re: battery drain

    i got the battery in April, because the other batter was doing the same thing.

  9. #8
    CTSUK's Avatar
    CTSUK is offline Cadillac Owners Enthusiast
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    Re: battery drain

    Has it been converted to top terminal style battery at all, if so, its shorting out on the hood, I had this from a previous sellers idiotic installation.

  10. #9
    stansikkema is offline Cadillac Owners Member
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    Re: battery drain

    nope side term

  11. #10
    concorso is offline Cadillac Owners Master
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    Re: battery drain

    Is there any bulb inside or on the outside of the car that burns out much faster then its equivalent bulb on the opposite side of the car?

  12. #11
    cabletech is offline Cadillac Owners Fanatic
    Automobile(s): 2004 CTS 3.2L M35 LtPt
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    Re: battery drain

    Any aftermarket electronics (alarm, stereo, etc) in the car at all? Talking *anything* aftermarket here.

  13. #12
    kjaze1 is offline Cadillac Owners Member
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    Re: battery drain

    I have a 03 CTS, that had the same problem, took it to the dealer and they fixed the problem for $885.00. It was the radio antenna module was staying energized and draining the battery. $274.28 for module,$248.75 for solenoid and $362.00 for labor. Never had the problem again

  14. #13
    jran0823's Avatar
    jran0823 is offline Cadillac Owners Enthusiast
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    Quote Originally Posted by DavidBoren
    Make sure you do not have anything plugged into the cigarette lighters... I guess they are not cigarette lighters anymore, are they? Whatever they are, the 12v accessory ports do not shut off with the key, so if you have an iPod charger plugged in, it will charge without the car being on.
    All outlets time out with everything else in my car. They do shut off after 10 minutes of locking the car.

  15. #14
    cabletech is offline Cadillac Owners Fanatic
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    Re: battery drain

    You can put the fuse in a different location and keep the cig lighter on all the time though. Some people do that.

  16. #15
    Sammy Z's Avatar
    Sammy Z is offline Cadillac Owners Connoisseur
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    Re: battery drain

    Find an Amp meter and pull the battery terminal and measure the draw there. Mine is .13 amp draw , pull R Rear 60 amp fuse drops to .05 amp.

    Measure battery w DVM 12.35v.

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