Question about 1992 Cadillac DeVille

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I have a 1992 Cadallic--Cluster does not work includes heater/AC, gas readrer (this is a digital cluster) also key will not engage (stuck).I have purchased another cluster still same problem. Have been told it is a grounding problem, I have cleaned ground at starter ans replaced ground cable. I have been told to ground cluster to fender. But dont have a clue hoe to do this.

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I have some wiring diagrams if you need them. You are going to need a circuit tester also(not a test light or you can fry the BCM). email me at

Posted on May 07, 2010


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this can be 2 problems the thermostat
or the module pcm that controls the digital controls on the dash panel
this is for the ac and the cluster if you change it you need to ask them to write your milles in it
i got one for a town and country and fix the ac problem anf it also give me 80k aditional miles

do the dance key test
you open and close the ignition key 3 times and the cluster will display error codes from the computer
with the codes we can solve this problem

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1 Answer

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Unfortunately my instrument panel did the same then the tach stopped working and gas needle became stuck...I had to get a new instrument cluster which set me back $700.00 including labor(Miami, FL)...NOTE...the odometer's computer is on the cluster and the odometer's reading has to be downloaded to the new instrument cluster.

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Digital cluster not working

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