Car Wiring Diagrams for Instrument illumination circuit for GMC Cab & Chassis Sierra 3500 (2004-2007)

2 HI IND CONTROL 2-HI IND 4 HI IND CONTROL 4 LO IND CONTROL 4-HI IND 4-LO IND AUTO BATTERY (B+) BLK WIRE BRN/WHT WIRE CREW CAB ONLY DIMMING INPUT DIMMING LO REF DK GRN/WHT WIRE DRL OFF ELECTRONIC POWER STEERING SYSTEM EXCEPT HYBRID FOG LAMP RLY CTRL DRL OFF IND CTRL HEADLAMP ON IND CTRL 5 VOLT REF PPL PNK WIRE FUSE GRY WIRE GRY/BLK WIRE HEADLAMP ON HEADLAMP SWITCH HOT AT ALL TIMES I/P FUSE BLOCK (LOWER LEFT SIDE OF DASH) IND INST PANEL DIMMING LED DIMMING SUPPLY I/P LAMPS DIM SUPPLY INSTRUMENT PANEL CLUSTER LEFT REAR WINDOW SWITCH LT GRN/BLK WIRE ORG/ WIRE ORG/BLK WIRE PNK AWD IND CONTROL WIRE PNK WIRE PPL PPL/WHT WIRE RED WIRE RIGHT REAR WINDOW SWITCH TAN/BLK WIRE TRANSFER CASE SHIFT CONTROL MODULE (BEHIND HEADLAMP SWITCH) TRANSFER CASE SHIFT CONTROL SWITCH

BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK GRN/WHT WIRE EXCEPT 10 SERIES OR CREW CAB GARAGE DOOR OPENER OVERHEAD CONSOLE HEADLIGHTS SYSTEM HVAC CONTROL MODULE INFLATABLE RESTRAINT I/P MODULE DISABLE SWITCH INFLATABLE RESTRAINT STEERING WHEEL MODULE COIL LOGIC LOWER RIGHT NCA WIRE POWER TAKE OFF (PTO) SWITCH OR AUXILIARY POWER OUTLET SWITCH (HYBRID) PPL/WHT WIRE REMOTE PLAYBACK DEVICE (CD PLAYER) STEERING COLUMN FUSE HOLDER STEERING WHEEL) TRACTION CONTROL SWITCH TRANSFER CASE SHIFT CONTROL SWITCH UPPER LEFT UPPER RIGHT WHT WIRE

BEACON INDICATOR BLK WIRE BLK/WHT WIRE BRN WIRE BRN/WHT WIRE DK GRN/WHT WIRE ELECTRONIC SUSPENSION SYSTEM LOGIC EXTERIOR LAMPS SYSTEM LOGIC FOG LAMP IND I/P RELAY BLOCK (NEAR LEFT KICK PANEL) JUNCTION I/P BLOCK (LOWER LEFT SIDE OF DASH) MULTIFUNCTION ACCESSORY SWITCH PPL PPL/WHT WIRE RIDE INDICATOR ROOF BEACON ROOF BEACON SWITCH SELECTABLE RIDE SELECTABLE RIDE SWITCH SUNROOF SWITCH WHT WIRE WINDOW/DOOR LOCK SWITCH (DRIVER) WINDOW/DOOR LOCK SWITCH (PASSENGER)