Cadillac Repair: 1990 cadillac brougham digital cluster, 1990 cadillac brougham, cadillac brougham

Question
Hello Rob,
My "other car" broke so I had to revive the old cadillac. It had been sitting long enough for the battery to drain completely so I got a new battery.  It started right up and every thing works fine including A/C and radio and all lights but the digital cluster is completely blank.  When it was parked it had always worked fine.   Could you list the likely possibilities and perhaps actions to fix?  
Thank you much,
George

Answer
Hello George,

Digital clusters have always been a problem.

The first thing though is look at the owners manual to find out where the i/p fuse is located as well as the gauge fuse. Check these fuses. If you are lucky, a blown fuse might be the only problem.

If that is not it, make sure some rodent get under the hood or under dash eating the harness going to i/p.

I have run into this qute often when a car sits for a long time.

Next, you will need to remove the cluster. Get some die electric grease from a hardware store as well as a can of brake cleaner. Spray both sides of connections. Lightly install the die electric greae to either the dash side or the cluster connection. Do not glob it in! Try reinstalling a couple times. It is common for the wiring printed circuit connection to become bad from sitting.

Just had one recemtly that the car had been sitting for a year. Removed cluster, reinstalled. Turned ignition on and everyting worked.

Put together and drove down the road. Parked and checked again. Not working. Pulled apart again, removed cluster, reinstalled and it worked. Drove down Please road. Fixed this time. I can't explain, other than moisture getting between connections and
leaving residue.

If that doesn't work, you need to ask a dealer as to where they send these clusters for repair.

Let's hope the problem is only a fuse.

Let me know what happened.

If my answer helped you, please rate it.

Thanks