need help finding this on 05 CTS-V
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2004-2007 Cadillac CTS-V General Discussion Discussion, need help finding this on 05 CTS-V in Cadillac CTS-V Series Forum - 2004 - 2007; Quote Originally Posted by heavymetals View Post I helped Reed with the same problem(s) as the hot weather is starting ...
  1. #1
    gregj1006 is offline Cadillac Owners Fanatic
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    need help finding this on 05 CTS-V

    Quote Originally Posted by heavymetals View Post

    I helped Reed with the same problem(s) as the hot weather is starting to return (and so are the alarms).

    The culprit in his case turned out to be the ground right under the hood support and very easy to get at.

    Reading a DVM from the bolt head to battery negative showed almost 1/2 volt! (450 mv).

    We removed the 15 mm bolt, added a 3/8" "star" washer (between lug and frame) and the voltage dropped to less then 50 mv.

    All the problems vanished.

    Anybody have a pic or diagram of this ground mentioned above?


    Appreciate any/all replies

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  3. #2
    darkman's Avatar
    darkman is offline Cadillac Owners Master
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    Re: need help finding this on 05 CTS-V

    The ground is located (as indicated in the quote) just under the hood support. Described differently, it is located just under where the hood-support "stick" attaches on the passenger's side.

    Ground 105 See attached.

  4. #3
    gregj1006 is offline Cadillac Owners Fanatic
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    Re: need help finding this on 05 CTS-V

    Thank you.Thought it was on drivers side. looks relatively easy to access. hope it cures my issue.

  5. #4
    gregj1006 is offline Cadillac Owners Fanatic
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    Re: need help finding this on 05 CTS-V

    I placed the star washer on yesterday and it seems to have cured the issue with the false temp readings.


    Thanks

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