GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2004 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Engine 🢒 Engine Electrical 🢒 Auxiliary Battery Schematics

Auxiliary Battery, Isolator Circuits
Object Number: 1464419 Size: FS
Master Electrical Component List
Battery Description and Operation
AUX RLY and IGN 4 - I/P Fuse Block Fuses/Circuit Breakers