In the wiring diagram for a 2004 Silverado, various components and their connections are illustrated. These components include the battery, ignition switch, fuse box, starter motor, alternator, and various sensors and actuators.. Find the wiring diagram for a 2004 Chevrolet Silverado to help with troubleshooting electrical issues and making repairs.
The first generation Chevrolet Silverado (full-size heavy-duty pickup truck) wiring diagrams for do-it-yourselfers. Covered: 1999-2007 Chevrolet Silverado 1500.. For some reason, some wire colors changed these years and can be confusing looking at pickup schematics. Some low reference wires, and battery hot wires changed color from the normal used on all other trucks.