error code
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Northstar Engines and System Technical Discussion Discussion, error code in Cadillac Engine Technical Discussion; I have an AMP code u1064. Does anyone know what it means. I need to take my 99 seville into ...
  1. #1
    searayless is offline Cadillac Owners Member
    Join Date
    Feb 2005
    Posts
    21

    error code

    I have an AMP code u1064. Does anyone know what it means. I need to take my 99 seville into get an e-check. Will this code cause the car ot fail. Thanks

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  3. #2
    mcowden is offline Cadillac Owners Connoisseur
    Join Date
    Jun 2003
    Posts
    1,164

    Re: error code

    U1064: Loss of communications with DIM

    For future reference, you can look up the codes here:

    http://myweb.accessus.net/~090/dtcobd2.html

    That code will not cause you to fail an emissions test as long as they are able to command the SES light on and off properly. Does it say the code is Current or History? If it's history, clear it before you get your emissions test and see if it comes back.

    Have you ever had any problems with the dashboard instruments or display? Any weird error messages or behavior in the past? The code basically means that the computer was unable to talk to the Dash Integration Module at some point in the past or in the present. (history or current) If everything seems to be working OK and the code is History, it's probably nothing to worry about. If you start experiencing strange electrical or dashboard behavior, it's probably worth having it checked out. For now, go get your emissions test and don't worry about it.

    Hope that helps... Good luck! Let us know what you do and how it turns out.
    Mike

  4. #3
    searayless is offline Cadillac Owners Member
    Join Date
    Feb 2005
    Posts
    21

    Re: error code

    Thanks, The code was a history code. I just cleared it and will see if it comes back. I have only had the 99 STS for about a year now and don't remember anything funny going on with the dash. Thanks again I will take car in next to get the e-check!!

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