GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC C Pickup - 2WD 🢒 Body and Accessories 🢒 Body Rear End 🢒 Release Systems Schematics
Figure 1:

Cell 134: CIG LTR Fuse, Liftgate Release Switch, Park/Neutral Position Switch
Object Number: 365025 Size: FS
Cell 10: CIG LTR Fuse
Cell 14: G105 (1 of 2)
Cell 14: G105 (1 of 2)
Liftgate Window Release Circuit Description Base
Cell 134: CIG LTR Fuse, Liftgate Release Switch, Park/Neutral Postion Switch (Luxury)
Cell 10: LIGHTING and BATTERY Fuses
99 W-P Front of Engine Compartment Component View
Figure 2:

Cell 134: CIG LTR Fuse, Liftgate Release Switch, Park/Neutral Postion Switch (Luxury)
Object Number: 365020 Size: FS
Body Rear End Components
Liftgate Window Release Circuit Description Base
Cell 134: CIG LTR Fuse, Liftgate Release Switch, Park/Neutral Position Switch
Handling ESD Sensitive Parts Notice
Cell 14: G105 (1 of 2)
Cell 14: G105 (1 of 2)
Cell 14: G400
Cell 130: CIG LTR Fuse, Door Lock Control Module, Rear Door Jamb Switch, Rear Door Lock Switch, G400
Cell 10: CIG LTR Fuse
Handling ESD Sensitive Parts Notice
Cell 10: LIGHTING and BATTERY Fuses
Fuses, Auxiliary Power Connectors and Cigar Lighter