Have 1997 Aurora. Yesterday, my

HI..
First the A/C. Vents and ducts are Completly APART of the
Electrical wires.. can be wires BUT outside of the A/C housing assemble.
For the Smoke from the a/c vents. Check the antifreeze level.
and see under the car for any advice of Coolant.
when the HEATER CORE. come damaged. loss coolant. and smel bad.

For the lights;
First check all the fuses. The FUSE fo the Park lights is
PARKLP fuse 25amp. Located undel left REAR passanger seat. Fuse block..
OK.. The HEAD light use a CIRCUIT BREAKER "HDLP" 20amp.
LOcated on the engine compartment fuse box.
Check the head light switch.
and the turn signal switch.
BUT your lights use a little Module called. LAMP CONTROL MODULE.. Located a left side of the Instrument panel.
You can try to locate and inspect.

OK.. i hope this help to try to diagnostic your vehicle.

Thank for use fixya. any further info. that you neeed just letme know.

Please check the fuse board.

Definitely one or two fuse were burned

You can check it an open the fuse board and check which one were burned . and take out these fuse and replace they are from a shop and fix it .

Check fuse box ; if any fuse blown . Before replace fuse check its wire harness using a multimeter for sort circuit .