Upfitter Provision Schematics. GMC Truck Sierra

For 1990-2009 cars only

Makes 🢒 GMC_Truck 🢒 2008 🢒 Sierra - 4WD 🢒 Power and Signal Distribution 🢒 Wiring Systems and Power Management 🢒 Upfitter Provision Schematics

Figure 1:	Mobile Radio Power (9L4) Master Electrical Component List Control Module References Roof Beacon Wiring (TRW)
Figure 2:	Roof Beacon Wiring (TRW) Master Electrical Component List Control Module References Emergency Vehicle Wiring (5Y0) Mobile Radio Power (9L4)
Figure 3:	Emergency Vehicle Wiring (5Y0) Master Electrical Component List Control Module References Wrecker Wiring (5X7) Roof Beacon Wiring (TRW)
Figure 4:	Wrecker Wiring (5X7) Master Electrical Component List Control Module References Emergency Vehicle Wiring (5Y0)