Pontiac Boneville (2003 - 2004) - fuse box diagram - Auto Mar 05, 2017Pontiac Boneville (2003 – 2004) – fuse box diagram. Year of production: 2003, 2004. Engine Compartment Fuse Block. The engine compartment fuse block is located in the front of the engine compartment on the passenger’s side of the vehicle. SOLVED: Where is the fuse box located in a 2003 Pontiac May 14, 2010Where is the fuse box located in a 2003 Pontiac Bonneville? - Pontiac 2003 Bonneville question. Search Fixya. Browse Categories Answer Questions . 2003 Pontiac Bonneville; Pontiac Bonneville Car and Truck Where is the fuse box located in a 2003 Pontiac Bonneville? Posted by jfrankmotors on May 14, 2010.