tcw0409

Ok so i have a mildly molested 90 cherokee and when the headlights are on the brake lights stop working. I checked all the fuses and they are fine. when the head lights are not on everything works just fine. I need to make a 400 mile drive in less than a week. So any help would be very helpful.

captainwoot

check all of your grounds. Add a new one if you need to,also if you have trailer wiringcheck that for corrosion

SteelBlue99

Not sure if XJ tail lights are similar to WJ tail lights, but check the contacts. I had a similar issue with my WJ, and turned out part of the bulb was not making contact with the tail light itself.