03 Chevy 3500 6500 Manual Fuse Box Diagram 03 Chevy 3500 6500 Manual Fuse Box Map Fuse Panel Layout Diagram Parts: EGR, canister purge, EVRV idle coast solenoid.fuse block busbar, anti lock brake module, high blower relay, stop lamp, dual tanks, fuel solenoid, glow plugs, horn, underhood lamp, injector,auxiliary fan, relay coil, A/C compressor relay, …