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RWD 19xx-1984 DeVille and Fleetwood,
1985-1996 Fleetwood and Brougham Forum Discussion, Buying 1990 Brougham tomorrow in Past Cadillac Vehicle Discussion; If you ground the connection the check engine light should flash. But you have the 5.7 w/ TBI so you ...
  1. #31
    AElayyat's Avatar
    AElayyat is offline Cadillac Owners Connoisseur
    Automobile(s): 85 Fleetwood Brougham, 90 Brougham 5.7, 05 Deville DTS
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    Re: Buying 1990 Brougham tomorrow

    If you ground the connection the check engine light should flash.

    But you have the 5.7 w/ TBI so you should be able to get the codes through the climate control by holding OFF & WARMER buttons


  2. #32
    brougham is offline Cadillac Owners Master
    Automobile(s): 1991 Cadillac Brougham D'Elegance 5.7 Litre, 1994 DeVille
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    Re: Buying 1990 Brougham tomorrow

    what he said. Press the 2 buttons and use a manual to figure out what the codes mean. That's actually one of the very few things a haynes manual is good for.

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