Codes how do you clear them
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Codes how do you clear them in Past Cadillac Vehicle Discussion; I have a 98 Deville, Yesterday the check engine light came on and then the dash displayed gas cap off. ...
  1. #1
    PhantomCadillac is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS
    Join Date
    Feb 2004
    Location
    Florida
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    56
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    Codes how do you clear them

    I have a 98 Deville, Yesterday the check engine light came on and then the dash displayed gas cap off. Sure enough when I stoped and open the fuel door it was off. I guess next it will tell me when to wipe my a**.

    Well I checked codes and came up with
    PCM P0440 History
    IRC P1771 History
    IRC U1255 History

    can anyone tell me what they mean and how do I clear them. Thanks

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  3. #2
    PhantomCadillac is offline Cadillac Owners Fanatic
    Automobile(s): 2001 DTS
    Join Date
    Feb 2004
    Location
    Florida
    Age
    56
    Posts
    186

    Re: Codes how do you clear them

    Anyone Anyone??

  4. #3
    brougham is offline Cadillac Owners Master
    Automobile(s): 1991 Cadillac Brougham D'Elegance 5.7 Litre
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    Jun 2003
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    Canada
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    5,456

    Re: Codes how do you clear them

    History codes will go away by themselves. But in one of the code posts it should say how to clear them if you don't want to wait.

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