Diagnostic system problems
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Diagnostic system problems in Past Cadillac Vehicle Discussion; We recentlly purchased a 93 Cadillac Sedan Deville 120,000 miles, nice car we love it. The Service Engine Soon light ...
  1. #1
    Shedog40 is offline Cadillac Owners Member
    Join Date
    Oct 2003
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    Unhappy Diagnostic system problems

    We recentlly purchased a 93 Cadillac Sedan Deville 120,000 miles, nice car we love it.

    The Service Engine Soon light comes on ocassionaly so we thought we'd use the Diagnostic System to figure out what's wrong. When we turn the ignition on and press the off and warmer buttons what comes up is E.9.6 we never see a specific vehicle system code such as PCM, IPC etc. Are we doing something wrong? This was before the stuff below.

    We recently installed a power antenna (a caddy just isn't a caddy without one) but that quit the other day and appears to have taken out the radio as it no longer displays the time or station even with a regular antenna hooked up to it.

    We also installed a hitch.

    It started making a wierd beeping sound when you turn the key on. Where it normally would be a ding, ding it now has a wierd electronic sounding beep.

    Any ideas on these problems would be appreciated.

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  3. #2
    JJhomer83's Avatar
    JJhomer83 is offline Cadillac Owners Connoisseur
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    Sep 2003
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    Bucks County, Pa
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    Re: Diagnostic system problems

    First: WELCOME to the forums.
    Thanks for joining.



    The only thing that i can tell you is to disconnect the battery for about 10 mins. Reconnect and go into diagnostics and report back everything that it does from there.

  4. #3
    brougham is offline Cadillac Owners Master
    Automobile(s): 1991 Cadillac Brougham D'Elegance 5.7 Litre
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    Canada
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    E96 is the type of code you're supposed to see... well when there's a problem anyway.

    I thought a power antenna was standard on them? Could it have been wired in wrong and killed the radio? Did these problems start right after something else was done or overtime?

  5. #4
    miishmiish is offline Cadillac Owners Member
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    Sep 2003
    Location
    Los Angeles
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    33
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    92

    Re: Diagnostic system problems

    Quote Originally Posted by Shedog40
    We recentlly purchased a 93 Cadillac Sedan Deville 120,000 miles, nice car we love it.

    The Service Engine Soon light comes on ocassionaly so we thought we'd use the Diagnostic System to figure out what's wrong. When we turn the ignition on and press the off and warmer buttons what comes up is E.9.6 we never see a specific vehicle system code such as PCM, IPC etc. Are we doing something wrong? This was before the stuff below.

    We recently installed a power antenna (a caddy just isn't a caddy without one) but that quit the other day and appears to have taken out the radio as it no longer displays the time or station even with a regular antenna hooked up to it.

    We also installed a hitch.

    It started making a wierd beeping sound when you turn the key on. Where it normally would be a ding, ding it now has a wierd electronic sounding beep.

    Any ideas on these problems would be appreciated.
    Sounds to me like you popped a fuse. Check for the fuse related to the sound system and change it; it's possible you wired the power antenna incorrectly causing a short. Good luck.

  6. #5
    2dfx's Avatar
    2dfx is offline Cadillac Owners Fanatic
    Automobile(s): 2003 Cadillac DeVille
    Join Date
    Jun 2003
    Location
    Ontario, Canada
    Age
    29
    Posts
    394

    Re: Diagnostic system problems

    E96 = Torque Converter Overstress

    Any ideas?

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