GMC Envoy (2002) - fuse box diagram - Auto Genius Dec 11, 2016GMC Envoy (2002) – fuse box diagram. Year of production: 2002. Engine Compartment Fuse Block GMC Envoy mk2 – fuse box – engine compartment. The fuse block is located under the hood in the engine compartment on the driver’s side of the vehicle. SOLVED: Main fuse for 2002 gmc envoy - Fixya Need fuse box diagram 2002 gmc envoy If I remember correctly if you look at the back side of the fuse cover, it should tell you what the fuses are. Also in the owners manual in the index, under fuses, it should give you a diagram of the fuse location for the acc. outlets.