your local librarie should have a mechanics manuual that you can photo copy ! Good Luck !
http://www.autozone.com/shopping/repairGuide.htm?pageId=0900c15280090549
schematic on 1991 cadillac fleetwood air condition
Try e bay.
HAYNES REPAIR MANUAL
Where is the ecm located on a 1990 cadilliac brougam
The 1990 through 1992 Cadillac dashboard wiring diagram can be obtained from most Cadillac dealerships. The diagram can also be found at most auto-parts stores.
See if your public library has a Chilton's book for your Cadillac.
The best place to find a wiring diagram is in the Cadillac Shop Manual. You can find one on eBay in the $50 range. It gives you the wiring diagram and so much more. Mine is becoming threadbare from use.
Under the hood neat the top of the radiator on the right as you look at it.
You could go to any local Auto Parts store and get a Chilton Repair Manual for that specific make and model.
diagram of cadillac catera exhaust system
no