I have a 1991 oldsmobile cutless supreme. the lights for the turn signal work but doesnt blink unless you manual move the switch up and down. also, the power window on the drivers side doesnt work but the other ones do. additionally, the fan for the heater/defrost doesnt work. lastly, the trunk switch i had to disconnect cause it kept opening by itself! are all these problems a fuse(s)? they all went out at different times so perhaps different fuses?

One of the bulbs are burnt out.I belive it's a 1157 bulb.The driverside window switch is bad and needs replaced.Check to see if power is going to the heater motor,maybe fuse.and last you might have a bad trunk release button.Hope this helps you please let me know.Mike

The signal problem is probably a bad flasher unit.it's located somewhere near the steering column under the dash. it's a small round silver (usually) part with 2 prongs that plug into the connector