Jeep CJ (1978 - 1986) - fuse box diagram - Auto Genius Sep 26, 2018The V8 models have a 1.5 amp. in-line fuse protecting the cruise control. All Jeep models are equipped with fusible links, located in the engine compartment, which protect the circuits. WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market. Jeep CJ&: I have a 1979 CJ7. Which fuse in the fuse box Jeep CJ&: I have a 1979 CJ7. Which fuse in the fuse box - Answered by a verified Jeep Mechanic. Hello and welcome to just answer. I do not actually have a fuse diagram for a 1979 CJ7, but I do know that it is a 5 amp fuse. There are only a couple of 5 amp fuses, so check all of the 5 amp fuses to see if any of them are blown.