I have a 1985 Cadillac Seville Commemorative Edition and lots of wiring problems. The new problem is the headlights went out. I'm sure they still work because when i turn on the brights the low beam headlightand high beam headlightcomes on but, when i want to turn on just the low beams nothing happens. They uses to work, now they don't. Does anyone know what the problem could be or where i can find a complete wiring diagram? Also when you open the driver side door none of the interior lights go on, but if you open any of the other doors the interior lights come on but, if you open any other door than the driver side door the radio resets itself and goes out and the clock goes back to 1:00. Also if you turn the **** that's around the light stick to turn on the dome light the radio and other lights go out. I got problems, please help.

 

Headlights - does car have Guidematic (auto high beams)?

Interior lights - check for blown fuses, 2 fuses control interior lights.

 

Check the yellow 20 amp "body" fuse. If blown interior lights either wont come on or will stay on dimly. Look for the cause to be tin foil/ pennys, dimes etc inside a lighter socket. Headlights are controlled thru the dimmer switch mounted left side of steering column. A rod comes down from the lever and as the lever is pulled back, electrical contacts are connected either to hi or low beams. It can be adjusted by loosening the switch and moving it to better align the rod to the switch.

 

Or both low beam filiments are blown out. If they are, check the charging system to see if its overcharging.