Cadillac Repair: 1985 cadillac fleetwood display blank, Fresno pkaintiff forensic locksmith, fresno herbert t miller credibility issues

Question
cannot figure out what controls the speedometer display its blank, just changed the main computer with a brand new one but didnt help?is it the body control module or a fuse somewhere else?

Answer
Hello,

The computer is the last thing I would have changed. You said brand new or is it from a junkyard?

You need to check all fuses! Usually, not always, when defective you see 8s.

Was it working and just quit? Or did you buy the car that way?

You are chasing ghosts here and will replace many good parts before finding out the real problem. Don't do this!!!!'

either find an electical service manual with the diagnostic flow charts or youcan try http:// www.alldata.com

if they have manuals that old pay the $25 for membership and download. That's cheaper than any manual you find. Without the diagnostic information you are working in the blind.

It could be as simple as a loose ground wire.

Get a manual and it will make this adventure simpler.

Http://www.autotheftexpert.com