I JUST GOT A 1989 SEDAN DEVILLE OFF MY OLD BOSS. THE BATTERY WAS DEAD FOR 6 MO. I GOT A NEW BATTERY & SOME GAS. THE CAR STARTED FINE. BUT NOTHING WORKED ON THE FUEL DATA CENTER OR THE ELECTRONIC CLIMATE CONTROLS AND THE FAN WAS RUNNING. I CHECK SOMES FUSES & REPLASED I THINK #4 FUSE. AT THAT POINT a "c" SHOWED UP ON BOTH FUEL DATA CENTER & ELEC. CLIMATE CONTROL BUT NOTHING IS STILL WORKING. PLEASE HELP!!!!!!

P.S I AM NOT A JUMPER LOOKING FOR JUST HELP. I JUST AM NEW TO CADILLACAND WILL TRY TO HELP AS I LEARN THINGS.