new codes new problem
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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, new codes new problem in Past Cadillac Vehicle Discussion; well I changed my oil pressure switch last week it got rid of the blinking oil light and stop engine ...
  1. #1
    cadillacjoel23 is offline Cadillac Owners Member
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    new codes new problem

    well I changed my oil pressure switch last week it got rid of the blinking oil light and stop engine low oil pressure message...now I have two brand new codes

    p1350-ignition control system
    p1375-24x reference high circit voltage

    any ideas where to start first...im bout ready to give up smh

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  3. #2
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
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    Re: new codes new problem

    Chances are it's a bad ICM, but can't hurt to check and clean the 4 connectors and the ground first.

  4. #3
    Submariner409's Avatar
    Submariner409 is offline If it won't run, slap in a big stereo
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    Re: new codes new problem

    The '97 Deville ?

    Like Ranger posted - pull the coils and ICM and check the connectors and the ICM ground cable. Clean the coil contacts and the ICM base contacts. Use the diagram in my albums to make sure the plug wires are connected to the correct coil towers. Those ICM boards have been known to crack.

  5. #4
    cadillacjoel23 is offline Cadillac Owners Member
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    Re: new codes new problem

    ok ill work on that as soon as I get home thanks for the help...sounds like im not the only one that has encountered this problem

  6. #5
    cadillacjoel23 is offline Cadillac Owners Member
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    Re: new codes new problem

    well glad to say got up under the car looked around the oil pressure switch that I changed...come to find out knocked a wire on the ckp hooked it back up pcm codes gone...finally ses light gone and I can get it inspected...and put my 800 dollar, 200000 mile caddy on the road again after sitting for four years...and the ac works great......

    just wanna thank my cadillac family for all the help

  7. #6
    Ranger's Avatar
    Ranger is online now Cadillac Owners Member
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    Re: new codes new problem

    That'll do it. Give it a few days before you have it tested.

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