Question about 2001 Cadillac DeVille

2 Answers

My 2001 deville had be sitting for 2-3 months with a dead battery. On the first attempt to jump start , the instrument cluster was completely blank. After a second attempt following , I Found My Instrument Cluster Lit up with however (((ABS))) (((Airbag))) and the (((Battery Light))) were lit. My Display would not read out percentages of gas used, Oil Life, Gear position etc, even though the words were , But no numbers or results. My (Mechanic) hooked it up to his scanner and it was giving him (((Unable to communicate with the console cluster))) Any ideas on how to fix this?

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  • NonieMouse
    NonieMouse Apr 19, 2014

    Hi Ali Fardshisheh, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?

    After dead battery, readouts
    including gas used do not read normally. These "learned" results have to be relearned by the computer-----this will
    take driving 100 miles or so. You would only do that if it starts and runs with normal sounding engine performance= if it does not start/run sounding normal, diagnose and fix your other problems, not just the computer memory.

    The scanning for codes will not help until the computer "remembers" something----which does not happen with a completely dead battery---memory is erased. I am writing this for Ali Fardshisheh on Apr 20,2014. (There are many other "learned" data elements in the car computer that will not be accurate until
    you drive about one hundred miles, so the computer can relearn them thru a NUMBER of normal operating cycles.....IF IT DOES NOT START AND SOUND NORMAL, you cannot apply this solution.)
    BEEN THERE, DONE THAT! Just as an example, when I
    went thru the 'really dead battery' cycle, the gas used was not
    displayed when I got back to running. After I drove thru many
    apparently normal miles, the mpg crept up very SLOWLY, from
    1, 2, 5mpg, until it eventually plateau-ed at its usual between 15 and 20mpg. I assume there are many other 'learned' readouts that would behave in the same way------this was the only readout I was following as I was not interested in the others, but I presume numerous others are operating in a default mode thru many driving cycles until a memory data-base builds up.
    Now I have to go see my DeVille mechanic. I will try to check later and see if you have a response. I have a good mechanic, if you need one. Best wishes....

  • NonieMouse
    NonieMouse Apr 19, 2014

    MY APOLOGIES, THIS site is not user friendly, and makes it HARD for me to reply to you.....hope the following helps you, = if your engine runs and sounds normal . . .

    Hi Ali Fardshisheh, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?

    After dead battery, readouts
    including gas used do not read normally. These "learned" results have to be relearned by the computer-----this will
    take driving 100 miles or so. You would only do that if it starts and runs with normal sounding engine performance= if it does not start/run sounding normal, diagnose and fix your other problems, not just the computer memory.

    The scanning for codes will not help until the computer "remembers" something----which does not happen with a completely dead battery---memory is erased. I am writing this for Ali Fardshisheh on Apr 20,2014. (There are many other "learned" data elements in the car computer that will not be accurate until
    you drive about one hundred miles, so the computer can relearn them thru a NUMBER of normal operating cycles.....IF IT DOES NOT START AND SOUND NORMAL, you cannot apply this solution.)
    BEEN THERE, DONE THAT! Just as an example, when I
    went thru the 'really dead battery' cycle, the gas used was not
    displayed when I got back to running. After I drove thru many
    apparently normal miles, the mpg crept up very SLOWLY, from
    1, 2, 5mpg, until it eventually plateau-ed at its usual between 15 and 20mpg. I assume there are many other 'learned' readouts that would behave in the same way------this was the only readout I was following as I was not interested in the others, but I presume numerous others are operating in a default mode thru many driving cycles until a memory data-base builds up.
    Now I have to go see my DeVille mechanic. I will try to check later and see if you have a response. I have a good mechanic, if you need one. Best wishes....

  • Sergio Lettieri
    Sergio Lettieri Apr 22, 2014

    Try checking the ground wire that runs from your alternator to the frame of your car. That can break over time and cause issues. Its about 6-8 inches and very thick

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Ok guys here is my thought about what I've read about your problem. First go to Amazon.com and get "Factory Service Manuel" for your 2001 DeVille! they are $150.00 but worth every penny. And don't let anybody work on your car with out this Manuel, period. No other manual will work! don't even think about Chilton, because they don't even touch the info you need. As far a dead battery, don"t ever just jump start a dead battery, instead remove the cables and charge it! Start you car after it is ready. because you chance blowing the ECM! As far as the other guy told you about the "ghost" readings, its true, the computer has nothing to report. But your car is very complicated even for the most top notch mechanic! that is why you need the FSM, because it contains all the tricks and info you need to know about. For example did you know that your cruse control will not operate if you have engine faults? In some situations you know even may not need a meter to plug in cause there is a chance that you can retrieve your engine fault codes just by suppling the combinations of switches. But the FSM can tell you that. let me tell stress to you, get the FSM and when you have a problem, then diagnose the problem your self. Then let a mechanic do only what you tell him to do. If anything else gets touched then it's on his Dime.

Posted on Apr 19, 2014

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  • 2 Answers

After dead battery, readouts
including gas used do not read normally. These "learned" results have to be relearned by the computer-----this will
take driving 100 miles or so. You would only do that if it starts and runs with normal sounding engine performance= if it does not start/run sounding normal, diagnose and fix your other problems, not just the computer memory.

The scanning for codes will not help until the computer "remembers" something----which does not happen with a completely dead battery---memory is erased. I am writing this for Ali Fardshisheh on Apr 20,2014. (There are many other "learned" data elements in the car computer that will not be accurate until
you drive about one hundred miles, so the computer can relearn them thru a NUMBER of normal operating cycles.....IF IT DOES NOT START AND SOUND NORMAL, you cannot apply this solution.)
BEEN THERE, DONE THAT! Just as an example, when I
went thru the 'really dead battery' cycle, the gas used was not
displayed when I got back to running. After I drove thru many
apparently normal miles, the mpg crept up very SLOWLY, from
1, 2, 5mpg, until it eventually plateau-ed at its usual between 15 and 20mpg. I assume there are many other 'learned' readouts that would behave in the same way------this was the only readout I was following as I was not interested in the others, but I presume numerous others are operating in a default mode thru many driving cycles until a memory data-base builds up.
Now I have to go see my DeVille mechanic. I will try to check later and see if you have a response. I have a good mechanic, if you need one. Best wishes....

Posted on Apr 19, 2014

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SOURCE: Instrument Panel Cluster stopped working

U ARE GOING TO HAVE TO PULL THE INSTRUMENT CLUSTER OUT AND SEND THE ENTIRE UNIT IN FOR REPAIR AT AN AUTHORIZED GM DIDGITAL DASH REPAIR CENTER, YOUR DEALER CAN SUPPLY THRE NAME AND PHOMNE NUMBER, THIS IS NOT A FUSE PROBLEM.

Posted on Feb 08, 2009

dallasgoldbu
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SOURCE: instrument cluster

Are you sure you didn't get the positive and the ground switched on the alt? WebRepcurrentVotenoRatingnoWeight

Posted on Apr 10, 2013

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