Two-Speed Rear Axle Schematics. GMC Truck TopKick C-Series (Conventional) C4/C5 2008

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Driveline/Axle 🢒 Rear Drive Axle 🢒 Two-Speed Rear Axle Schematics

Figure 1:	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 Engine Data Sensors - Low Reference 2 of 2 Ground Distribution Schematics AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers G200, G202, and G203 - 1 of 4
Figure 2:	HPZ with Automatic Transmission Master Electrical Component List Two Speed Rear Axle Shift System Description and Operation (Air Operated) Control Module References HPZ with Manual Transmision Engine Data Sensors - Low Reference 2 of 2 ENG-1 and ENG-4 Fuses - L18/LMM ENG-1 and ENG-4 Fuses - LF6/LF8 ENG-1 and ENG-4 Fuses - L18/LMM ENG-1 and ENG-4 Fuses - LF6/LF8 Engine Data Sensors - Low Reference 2 of 2 Ground Distribution Schematics AXL/4WD, BRK, HYD/AIR BRK, and HTR/AC Fuses/Circuit Breakers G200, G202, and G203 - 1 of 4
Figure 3:	HP1/HP2 Master Electrical Component List Two Speed Rear Axle Shift System Description and Operation (Air Operated) Control Module References HPZ with Manual Transmision Engine Data Sensors - Low Reference 2 of 2 G100 - LF8