I believe the relays for the headlights are under the hood on the driver's side fender under a black cover with all the "big" fuses. hope this helps you out
start by checking your fuses.
check the fuses.
You didn't mention if you checked/tested the low beam headlamps or not.
have you checked your fuses?
Check the bulbs and check the fuses.
Check bulbs, fuses, and check for wiring problems
It is possible that both of the fuses are bad for the low beam headlights and the cruise control. A loose ground wire could cause the fuses to blow.
it could be your fuel pump relay. it should be located under the hood in a box marked fuses or relays.
If the headlights are not working correctly on a 1990 Corvette, the fuses or lights could be going out. Replace the old fuses and check that all wires connected to the lights are functioning correctly.
relay in the hood fuse box HDM relay (Headlamp Driver Module)
run a wire from the battery to the radio with an inline fuse... or check ur fuses and see if its blown
The 1993 Chevrolet Blazer headlight fuses can be found in the fuse box. The exact location of the fuses will be listed on the inside cover of the fuse box.
There is no fuse for the headlights in that truck. The circuit is protected by a circuit breaker located inside the headlight switch.
Check for bad ground
Check your fuses by your left foot in the driver's seat. There is a panel with a bunch of fuses and it could be simply a burnt out fuse!
open the divers side door and there is a fuse pannel on the side of the dash and it has lables on wich fuses do what
Check the fuses first. Is sounds like there is a power failure to the light system. There could also be a broken wire to the fuse box.
There could be a problem with the power of common ground to the Cavalier light and sun roof. Check the fuses and wiring for the problem.
check fuses and connections at the headlights and the switch in the dash, make sure your headlights are good ;-) that's a start...
The headlights are a separate circuit from the others. Check the bulbs, headlight switch, Hi/Low beam switch and depending what year you have check the fuses.
Open the driver door, look on the left side of the dash. There is a small hatch to open where all the major fuses are. Others are behind the driver's kick panel underneath the steering column.
Try your fuses