Car Wiring Diagrams for Headlights circuit, w/ led headlamps except high country package for GMC Sierra IV (2018-2022)

AMBIENT LIGHT SENS SIG BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIMMER SWITCH FLASH TO PASS FOG LAMP RELAY CONTROL GRN/BRN WIRE GRY/BLU WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI BEAM RLY CTRL HDLP SW FLASH TO PASS SIG HDLP SW ON SIG HDLP OFF SIG CTRL HIGH BEAM ASSIST HIGH BEAM AUTO ON/OFF SWITCH SIGNAL HIGH SPD GMLAN SER DATA (-) 1 HOT AT ALL TIMES LEFT FRONT FOG LAMP LF DRL CTRL LF HDLP LOW BEAM CTRL LH HDLP RLY CTRL LIGHTING CTRL SW REF LIGHTING CTRL SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RF DRL CTRL RH HDLP LOW BEAM CTRL RIGHT FRONT FOG LAMP RIGHT INSTRUMENT PANEL FUSE BLOCK TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ INTEGRATED TRAILER BRAKE CONTROL WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE

2.7L TURBO AMBIENT LIGHT/ SUNLOAD SENSOR BATTERY FUSE BLOCK BLK WIRE BLK/GRN WIRE BLU/BRN WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS 9 FRONT FOG LAMP RELAY GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GROUND DISTRIBUTION SYSTEM GRY/BLU WIRE HEADLAMP HIGH BEAM RELAY HEADLAMP RELAY HOT AT ALL TIMES HVAC CONTROL MODULE INTERCONNECT LEFT DAYTIME RUNNING LAMP, LEFT HEADLAMP LEFT HEADLAMP ASSEMBLY LO REF LOCAL LOGIC LOW REFERENCE NETWORK SERIAL RED/GRN WIRE SOLAR SENS SOLAR SENSOR UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE

AUTO BLK WIRE BLK/WHT WIRE BLU/BRN WIRE COMPUTER DATA LINES SYSTEM DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY FRONT FOG LAMP IND FRONT FOG LAMP SWITCH GRN/BRN WIRE GRN/YEL WIRE GROUND DISTRIBUTION SYSTEM GRY/GRN WIRE HEAD HEADLAMP SWITCH HIGH BEAM IND HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER LOGIC LOW SPD GMLAN SER DATA OFF PARK PARK BRAKE CONTROL SWITCH PARK BRAKE SWITCH RED/GRN WIRE RIGHT DAYTIME RUNNING LAMP RIGHT HEADLAMP RIGHT HEADLAMP ASSEMBLY RIGHT INSTRUMENT PANEL FUSE BLOCK SIG GND RUN/CRANK IGNITION 1 VOLTAGE VIO/BLK WIRE WHT WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE YEL/GRY WIRE