1999 STS - electrical, lighting, suspension problems
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 1999 STS - electrical, lighting, suspension problems in Past Cadillac Vehicle Discussion; I am having same problem no interior lights doors don't look from lock button on any door gas and trunk ...
  1. #1
    dogottie is offline Cadillac Owners Member
    Automobile(s): 1999 sts
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    1999 STS - electrical, lighting, suspension problems

    I am having same problem no interior lights doors don't look from lock button on any door gas and trunk button don't wrk n car or on key fob lights blink on key fob though any help will be greatly appreciated and dash say limited to 90( some please help 2000 sls


    This post moved from a different thread, different car, same problem.

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    basscatt's Avatar
    basscatt is online now Cadillac Owners Master
    Automobile(s): 89 Coupe DeVille, 95 Sedan DeVille, 02 DHS, 03 SLS
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    Re: 1999 STS - electrical, lighting, suspension problems

    check for Diagnostic Trouble Codes -

    if you don't know how - go here and read the ENTIRE post -

    http://www.cadillacforums.com/forums...odes-dtcs.html

    if you have any codes - post them here -
    ALONG WITH THEIR DEFINITIONS -

    ------------------------

    then check ALL the fuses -
    both under the hood - and under the back seat -

  4. #3
    dogottie is offline Cadillac Owners Member
    Automobile(s): 1999 sts
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    I am trying to locate the "rim" and "bcm"on my 2000 sls I think this may be my problem I also have a 99sts are the bcm and rim interchangeable on them

  5. #4
    SwampeastMike is offline Cadillac Owners Enthusiast
    Automobile(s): 99 STS, White Diamond
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    Re: 1999 STS - electrical, lighting, suspension problems

    The RIM (Rear Integration Module) is located behind the rear seat back on the passenger side. Four large metal clips near the top of the seat back secure it. A large, flat blade screwdriver works fine to release them by pressing down. Move it from side-to-side to find the clip locations. I know from personal experience that the RIM of a '99 is NOT interchangeable with 2000+! Do it and you will loose the gas gauge!

    There is no BCM (Body Control Module). The functions of a BCM are split between the IPM (Instrument Panel Module) and the DIM (Dash Integration Module). The IPM is an integral part of the climate system control unit; the DIM is above and behind the glove box (you have to remove the glove box to access). While I think a DIM from a 2000 will work in a '99, you need a Tech-II to replace DIM modules as there are some vehicle-specific settings in the DIM that can only be accessed via a Tech-II.

    100% solid state modules like the RIM, IPM and DIM are extremely reliable and very rarely fail. Like other similar electronic devices if they don't fail when nearly new (due to a manufacturing flaw) they will probably be working perfectly after everything mechanical in the car has worn out.

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