Break lights out - 1993 Jeep Grand Cherokee

I am a liecenced mechanic. Start addressing your problem by checking the brake light fuse in the main fuse panel. See the owners manual for location. Main one is under the hood. Secondary panel is on the passenger side kick panel area or in glove box. Replace the fuse if blown. If fuse is o/k check brake pedle brake light switch adjustment. If switch is adjusted properly, check rear brake light bulbs next. If they are o/k check for power at the bulb socket with a 12 volt test light with brake pedle depressed. Light should light. If it does not replace brake light switch and check operation. If problem is not repaired buy a repair manual or bring to a technition for diagnosis.