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.
Had the same problem. Found it to be a bad ground wire for the headlights. There are two ground wires for the headlights, both are directly below the battery. You can see one of them if you remove the drivers side headlight. It is right behind the radiator hose. The other is a few inches from that one.
That can happen when there is a bad ground to one of the lights.
Usually dim headlights are caused by a poor ground connection.
Bad ground on the brake lite circuit.
Possible ground issue at the taillights.
i had a problem with my 99 grand am...the lights were pointing at each other towards the ground about 10 feet in front of the car...there should be several screws above or behind the headlights on either side...take it out on a road at night and have someone sit in the car while u adjust the lights with a screwdriver but be easy because the plastic piece that surrounds the headlights break easily.
This will happen if the ground terminal for the brakelight bulb is connected to the power side by accident. If you have a 3 wire socket or light assembly with GROUND, TAIL, and BRAKE wires two of them are wired incorrectly. When the headlights are off the brake light is finding ground thru the filaments of the headlights. Since the headlights have much heavier filaments, they provide a good ground for weaker brake light. When power is on the headlights the brake light will have power on both sides, so no current flows and it goes out.
The headlights probably have a bad ground. the alternator is probably going bad.
Bad battery connection, bad starter connection, bad negative ground to engine, battery to fender grounds, etc.
If there are not "short's to ground", you probably have a faulty circuit breaker for the headlights.