Two-Speed Rear Axle Schematics. GMC Truck TopKick C-Series (Conventional) C4/C5 2006

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2006 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Two-Speed Rear Axle Schematics

Figure 1:	HP1/HP2 Master Electrical Component List Two Speed Rear Axle Shift System Description and Operation (Air Operated) Control Module References HPZ with Manual Transmission Power Take-Off - 1 of 2 G100 - LG4
Figure 2:	HPZ with Manual Transmission Master Electrical Component List Two Speed Rear Axle Shift System Description and Operation (Electric Operated) Control Module References HPZ with Automatic Transmission HP1/HP2 Ignition Switch - RUN and ACC/RUN Bus Bars and IGN 3 Fuse Power Take-Off - 1 of 2 G100 - L18 G100 - LG4 G203 - 1 of 4
Figure 3:	HPZ with Automatic Transmission Master Electrical Component List Two Speed Rear Axle Shift System Description and Operation (Electric Operated) Control Module References HPZ with Manual Transmission ENGINE and PCM-1 Fuses/Circuit Breakers Ignition Switch - RUN and ACC/RUN Bus Bars and IGN 3 Fuse ENG-1 and ENG-4 Fuses - L18/LLY Power Take-Off - 1 of 2 G101 - 1 of 2 G203 - 1 of 4