I have a 2001 chevy cavalier z24..my headlights would dim when i press the brakes..then my daylights started clicking and won't turn on along with my regular headlights.......if i turn them on my dash also goes dim or out

Can you dim your dash lights?Does the dim switch work?Is it part of the head light switch on this model?Check the alternator out put to see if there is 13.65 to 14.25 output volts,at the battery,with the engine running,and the head lights on.If the voltage is not in these spects,replace the alternator. Can you dim your dash lights?Does the dim switch work?Is it part of the head light switch on this model?Check the alternator out put to see if there is 13.65 to 14.25 output volts,at the battery,with the engine running,and the head lights on.If the voltage is not in these spects,replace the alternator.

I had a similar problem with my 2001 chevy cavalier...remove the battery and located the headlight wiring harness underneath the battery tray, it may be corroded, if so the best place is to try the junkyard and find one in tact, once found, remove the old harness by first; Taking the plastic cover of the front, its held in by 8 put in caps, then remove the two screws on each headlight, then use a long flat edge screw driver to pop the clip holding the two lights together. Unplug all bulbs then unplug the harness,pull up the old one and replaces with the new.Note: only start doing the above steps if your headlight wiring harness is corroded I had a similar problem with my 2001 chevy cavalier...remove the battery and located the headlight wiring harness underneath the battery tray, it may be corroded, if so the best place is to try the junkyard and find one in tact, once found, remove the old harness by first; Taking the plastic cover of the front, its held in by 8 put in caps, then remove the two screws on each headlight, then use a long flat edge screw driver to pop the clip holding the two lights together. Unplug all bulbs then unplug the harness,pull up the old one and replaces with the new.Note: only start doing the above steps if your headlight wiring harness is corroded