Courtesy lamps circuit, base for GMC Sierra 1500 (2000-2012)

BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BRN WIRE CARGO LAMP CARGO LAMP SWITCH CARGO LP SW DOME LP SW RT DR JAMB LT DOOR JAMB DOME LP DFT COURTESY LAMP RELAY CTSY LP FUSE CTSY LP RLY LAMP REQUEST DK BLU WIRE DK BLU/WHT WIRE DOME LAMP DOME LAMP DEFEAT SWITCH DOME LAMP SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK (ON LEFT SIDE OF ENGINE COMPT) FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) GRY WIRE GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES INADVERT RLY INADVERTANT POWER RELAY LEFT I/P COURTESY LAMP LEFT MINI WEDGE (DOOR JAMB SWITCH) RIGHT POWER DOOR LOCK SWITCH NOT USED NOT USED ORG/ WIRE PPL RIGHT I/P COURTESY LAMP RIGHT MINI WEDGE (DOOR JAMB SWITCH) TAN WIRE UNDERHOOD LAMP ASSEMBLY OFF ON WHT WIRE