Twist the headlight switch.
If dashlights, then bad starter/solenoid. If no dashlights, then could be bad connections at battery or cables or cable grounds. Also could very well be the ignition switch in the steering column.
Look to the very left side of the console at the drivers side door for the switch
Not very specific on the question. I can go with my experience, though.My 2000 T&C would turn off my headlights as I was driving. No special warning, and it did it randomly. Even when I had the fog lights on, it turned off my headlights. A new headlight switch fixed it right up! Make sure you get the right switch! The non-fog light switch and the switch with fog lights have very different electrical connectors!
the brake lights are on a separate cuircut,if your brake lights are staying then it will be a fault with the brake light switch. the switch is located under dash,and will be on or very close to brake pedal.
Vinegar works very well for cleaning the headlights on your car.
Fix My Headlights is a great place to go to correct foggy headlights. They are very trusted and can do a very good job. I do not know anyone who has used it but it seems good.
i just had this problem on my 93 Dakota it was the switch in the dash! it was a very simple fix the part was about $12.00 at autozone and it took about 15 min to fix.
(http://www.wjjeeps.com/lamps/headlamps.htm) AUTO HEADLIGHTS CYCLE ON AND OFF WHEN THE VEHICLE IS PARKED AND TURNED OFF (with headlamp switch in "Auto" mode) The problem is most prominent on 1999-2001 WJ's, but it could apply to the 2002-2004 WJ's. The problem could be in the switch. The switch is a multiplexed circuit, the resistance of the HEADLIGHT ON position is very close to the AUTO position; the switch has been updated to correct this problem.
there is a switch....if that has gone out there is a manual override located in your engine bay. at the very front left side ther is a black rubber boot. remove and ture the knob until they close
try removing the light switch......there are contacts inside the switch that are positioned on a spring sometimes these springs pop out of position disabling contact. the switch comes out easy and if you take a small flat head screw driver you can separate the switch and see these contacts. be very careful aponn separating the switch so you don't lose any small pieces. if the contacts and springs appear to be in the right positions then its time for a new switch.
Very Carefully.
you need a new headlamp switch, power for the lamp motors comes from the switch, if you are very carefull you can take apart the switch(you will probably see carbon built up on the contacts), clean the contacts off and give them a slight bend,apply a small amount off lithium greese. you should be good to go.