I have a 1991 Dodge pickup i cant get the headlights to come on or the Brake lights everything eles works I put a new light switch and all new fuses and a new brake piece any suggestions

SOURCE: My 2001 Dodge Dakota pickup, No headlights.

There is a fuse you may have more then one fuse box look under the hood & under the dash. Most of the time Chrysler will just put a number next to the fuses. Go to your owners manual & see what number is your head light fuse. If you still can't find the right fuse take your test light & check both side of each fuse if one side lights up & one side does not replace it with the same size fuse.

SOURCE: 2001 dodge neon tail lights inop

looking at your schematics and , you say tail lights don't work , you didn't mention if front parking lights and license plate lights are working , they all come from the same source , a black /yellow wire , a good clue if front work and rear don't , please advise .if fronts work then you have a open circuit somewhere between junction S118 (near breakout for left headlamp) and rear sockets.

SOURCE: the brake lights wont work on my 2001 dodge caravan

Sound like the brake light switch is gone. this part is attached to the brake pedal.

SOURCE: 1997 Dodge Caravan No Brake Lights

i have the same problem you have to put a bit of solder on all the tips of the connectors were the bulb goes in and it will be fixed

SOURCE: Headlights don't work.

There is a circuit breaker inside the headlight switch body. It gets weak over time and use. The breaker is actually mentioned in the owners manual. A new switch is about $75.00 at the local parts store. You must remove the front of the dash to change the switch. Mine would go off and then in about 30 seconds reset and the lights would come back on. I would be driving down the road with my headlights flashing as the circuit breaker opened and closed. New switch = problem fixed.