GMC Sierra 2500 (2000-2004) courtesy lamp relay Wiring diagrams

BLK WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR LEFT KICK PANEL) 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 GRY WIRE GRY/BLK WIRE HEADLAMP, PANEL DIMMER SWITCH HOT AT ALL TIMES INADVERT RLY INADVERTANT POWER RELAY LEFT I/P COURTESY LAMP LEFT I/P FUSE BLOCK (ON LOWER LEFT SIDE OF DASH) LEFT MINI WEDGE (DOOR JAMB SWITCH) ORG/ WIRE PPL RIGHT I/P COURTESY LAMP RIGHT MINI WEDGE (DOOR JAMB SWITCH) TAN WIRE UNDERHOOD FUSE BLOCK (ON LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UNDERHOOD LAMP ASSEMBLY OFF ON WHT WIRE

BLK WIRE BLU WIRE BODY CONTROL MODULE (ON LOWER LEFT SIDE OF DASH, BELOW STEERING COLUMN) BODY JUNCTION BLOCK BODY RELAY (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) BODY RELAY BLOCK BODY RELAY BLOCK (UNDER LEFT SIDE OF DASH, NEAR KICK PANEL) CARGO LAMP CARGO LP SW DOME LP SW DOME LP DFT CARGO/ FOG LAMP SWITCH CONSOLE COURTESY LAMP (SIERRA DENALI) COURTESY LAMP RELAY CTSY LP FUSE CTSY LP RLY LAMP REQUEST DK BLU WIRE DK BLU/WHT WIRE DOME LAMP DEFEAT SWITCH DOME LAMP SWITCH DRIVER DOOR COURTESY LAMP GAS DIESEL GRY WIRE GRY/BLK WIRE HEADLAMP DIMMER SWITCH HOT AT ALL TIMES I/P COMPART- MENT LAMP I/P JUNCTION BLOCK (ON LOWER RIGHT SIDE OF DASH) INADVERT RLY INADVERTENT POWER RELAY LEFT I/P COURTESY LAMP LEFT I/P FUSE BLOCK LEFT REAR DOOR COURTESY LAMP (CREW CAB) LEFT VANITY MIRROR LAMP OFF ON ORG/ WIRE OVERHEAD CONSOLE PPL READING LAMPS RIGHT FRONT DOOR COURTESY LAMP RIGHT I/P COURTESY LAMP RIGHT I/P FUSE BLOCK RIGHT REAR DOOR COURTESY LAMP (CREW CAB) RIGHT VANITY MIRROR LAMP TO BODY RELAY BLOCK (DIAGRAM 2 OF 2) UNDERHOOD FUSE BLOCK (AT LEFT SIDE OF ENGINE COMPT, NEAR BATTERY) UNDERHOOD LAMP WHT WIRE

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 DR HANDLE SW LT DOOR JAMB DOME LP DFT COURTESY LAMP RELAY CTSY LP FUSE CTSY LP RLY RT DOOR JAMB 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 I/P COMPART- MENT LAMP I/P WIRING HARNESS JUNCTION BLOCK (ON LOWER RIGHT SIDE OF DASH) INADVERT RLY INADVERTENT POWER RELAY LEFT FRONT DOOR COURTESY LAMP LEFT I/P COURTESY LAMP LEFT MINI WEDGE (DOOR JAMB SWITCH) LEFT POWER WINDOW/DOOR LOCK SWITCH LT GRN WIRE LT GRN/BLK WIRE OFF ORG/ WIRE PPL READING LAMPS RIGHT FRONT DOOR COURTESY LAMP RIGHT I/P COURTESY LAMP RIGHT MINI WEDGE (DOOR JAMB SWITCH) TAN WIRE UNDERHOOD LAMP ASSEMBLY WHT WIRE

AMPLIFIER AUTOMATIC DAY-NIGHT REARVIEW MIRROR W/ COMPASS AUXILIARY POWER OUTLET AUXILIARY POWER OUTLET BLK WIRE BLOWER MOTOR SWITCH/HVAC CONTROL MODULE BODY CONTROL MODULE BODY WIRING HARNESS JUNCTION BLOCK (UNDER LEFT SIDE OF DASH) BRAKE TRANSMISSION SHIFT INTERLOCK SOLENOID CENTER HIGH MOUNTED STOP/ CARGO LAMP CIGAR LIGHTER ASHTRAY LAMP COURTESY LAMP RELAY DATA LINK CONNECTOR (DLC) FOG/ CARGO LAMP SWITCH FRONT OVERHEAD READING LAMPS FUSE BLOCK (LOWER LEFT SIDE OF DASH) POWER DOOR LOCKS RELAY TURN/ HAZARD FLASHER HEADLAMP, PANEL DIMMER SWITCH HEATED/ MEMORY SEAT SWITCH HORN SWITCH INSTRUMENT CLUSTER KEY CYLINDER SWITCH TOW/HAUL SWITCH LEFT MINI WEDGE (DOOR JAMB SWITCH) LEFT OUTSIDE POWER MIRROR POWER MIRROR SWITCH LEFT DOOR KEY SWITCH LEFT POWER WINDOW/ DOOR LOCK SWITCH MODE DOOR MOTOR SELECT SWITCH NCA WIRE PARK SWITCH POWER DOOR LOCK SWITCH POWER WINDOW SWITCH RADIO RECIRCULATION DOOR MOTOR REMOTE CONTROL DOOR LOCK RECEIVER RIGHT MINI WEDGE (DOOR JAMB SWITCH) RIGHT POWER DOOR LOCK SWITCH ROOF BEACON SWITCH SELECTABLE RIDE SWITCH STEERING COLUMN) SWITCH TEMPERATURE DOOR MOTOR TRACTION ASSIST UPLEVEL ONLY (UPLEVEL ONLY) VEHICLE INTERFACE UNIT (VIU)