1991 Cadillac Deville Instrument Displyas all black..
20

Asked by Paul Feb 03, 2019 at 04:18 PM about the 1991 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

1991 Deville
Car runs normally..Instrument Cluster, fuel DAta Center, Climate Control
Displays all black
Did have some very faded readouts then went to black after a few seconds.
Now all black
Replaced Instrument Cluster.. no change
Replaced BCM...some faded display in the Instrument cluster came and went
after a few seconds. Now is all black
I am an electronic tech and this has all the makings of a commonly shared
voltage being loaded down by a bad circuit-mocule
I cant find Climate Control Module, or A-c control module. I was going to try
unplugging these to see if Cluster started working. but no where on here can
I find anyone with sense enough to tell you where they are.

1 Answer
26,835

taver91 answered 5 years ago

I had a 1993 Deville and found them mounted with the display modules. Had to remove most of the dash to get to them and repair/replace. Mine was just to the left of the speedometer cluster and above the idiot gauge cluster.

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