Question about 1999 Cadillac Eldorado

2 Answers

Sometimes my 1999 cadillac eldorado radio wont shut off when I open the door. I've turned if off manually but the next day my battery is dead

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  • crazyalice71 Aug 23, 2010

    this problem only happens occasionally and the horn for security goes off too, this is all related to the relay or loose wire, I take it. Can I fix it myself-I have no job now and can't take it to a garage

  • crazyalice71 Aug 24, 2010

    I've been told by someone that it's probably the BCM. He told me where the delay relay was 1 1/2" from SDM. This was an online answer I got. Don't know what the letters stand for. So I'm really confused now.I can't afford to just take it in to a shop, we're on a fixed income. My husband said maybe auto zone might help if we knew what we were looking for. Someone in the past has put ground wires who knows where. I forgot to say my pass. seat doesn't work right nor the antenna. Tell me in plain talk what that other guy is talking about and just as many ideas that could be solution to this.

  • Anonymous Mar 30, 2014

    battery usually dead next day also

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2 Answers

Chek the accessory time delay relay for continuity, it is located at the wiring harness about 1 1/2" from underneath the drivers side seat. More then likely this happends when your body control module (BCM) goes bad. Click on the link below to view and then order a replacement:

http://cgi.ebay.com/ebaymotors/Theft-Locking-BCM-ECU-THEFT-ECU-25644495-_W0QQcmdZViewItemQQfitsZYearQ3a1999Q7cMakeQ3aCadillacQ7cModelQ3aEldoradoQQitemZ290458676314QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories

Posted on Aug 24, 2010

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  • Master
  • 1,297 Answers

Your post was not clear, but I am assuming you are talking about the radio not turning off

I've seen this a lot and it appears to be a programming concern on most vehicles that require new updates for your ECM

however, some times it is a defective accessory delay relay and other times it is a shorted control wire for the delay relay

either case, depending on your electrical diagnostic experience and availability of professional scan tools, you may want to seek assistance from the dealer or a VERY GOOD garage with lots of electrical experience

Posted on Aug 22, 2010

  • Sean Reisdorf
    Sean Reisdorf Aug 23, 2010

    is there an aftermarket remote starter or alarm system installed?

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