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Thread: OBD I Diagnostic Trouble Codes

  1. #1
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    Diagnostic Trouble Codes

    I have a list of all Diagnostic Trouble Codes (DTCs) for OBD I equipped GM vehicles in a text file format if anyone needs them.

    Attached Files

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  3. #2
    DaveSmed's Avatar
    DaveSmed is offline Cadillac Owners Connoisseur
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    Re: Diagnostic Trouble Codes

    Very helpful. Mind if I make this sticky?

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    Re: OBD I Diagnostic Trouble Codes

    Please do.

  5. #4
    elwesso's Avatar
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    Re: OBD I Diagnostic Trouble Codes

    I think we should make this a main link on the main page......

  6. #5
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    Re: OBD I Diagnostic Trouble Codes

    do these codes apply for a 91 Sedan Deville?

  7. #6
    DaveSmed's Avatar
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    Re: OBD I Diagnostic Trouble Codes

    Yes they do. The prefixes P and E are interchangable.

  8. #7
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    Question Re: OBD I Diagnostic Trouble Codes

    Do those OBD codes apply for a 1992 Cadillac Sedan DeVille?

  9. #8
    DaveSmed's Avatar
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    Re: OBD I Diagnostic Trouble Codes

    Yup. 1995 down.

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    Thumbs up Re: OBD I Diagnostic Trouble Codes

    Ok Thank you Dave

  11. #10
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    Re: Diagnostic Trouble Codes

    Quote Originally Posted by jcdsog
    I have a list of all Diagnostic Trouble Codes (DTCs) for OBD I equipped GM vehicles in a text file format if anyone needs them.
    SIR problem in my 94 eldorado, it indicates RO 15. Need advice??

  12. #11
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    Re: OBD I Diagnostic Trouble Codes

    With all the help out there I still cannot info on the following codes. When I display the diagnostic error codes on my 1992 Deville 4.9L I get the following:

    888 (start)
    E13 (O2 sensor)
    E52 (Memory)

    F11 ?????????????
    F12 ?????????????

    FF11 ????????????
    FF12 ????????????

    70 (end)

    I have no idea what the "F" and "FF" codes are. Any suggestions?

  13. #12
    DaveSmed's Avatar
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    Re: OBD I Diagnostic Trouble Codes

    There for the BCM.

    F11 A/C High Side Temperature Sensor Circuit
    F12 A/C Low Side Temperature Sensor Circuit

  14. #13
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    Re: OBD I Diagnostic Trouble Codes

    Hello Dave,

    I see the "sticky" and the info on the 2 "F" codes, thx. You mention that the printed list is a complete OBD I set of codes but there are no "F" codes in this list. Where did the info come from on the 2 "F" codes and is there a 100%complete list of every OBD I codes available somewhere to print out for reference?

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  16. #15
    gust_1980 is offline Cadillac Owners Fanatic
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    Re: OBD I Diagnostic Trouble Codes

    i just posted earlier about this....try this link

    http://myweb.accessus.net/~090/dtcobd1.html

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