Car Wiring Diagrams for Headlights circuit, w/o led headlamps for GMC Sierra IV (2018-2022)
Headlights circuit, w/o led headlamps (1 of 2)
2.7L TURBO
AMBIENT LIGHT/ SUNLOAD SENSOR
AMT LT SEN SIG
BATT POS VOLT
BATTERY FUSE BLOCK
BLK WIRE
BLK/GRN WIRE
BLK/WHT WIRE
BLU WIRE
BODY CONTROL MODULE (LEFT END OF DASH)
BRN/VIO WIRE
BRN/WHT WIRE
COMPUTER DATA LINES SYSTEM
DIMMER SWITCH
FLASH TO PASS
FOG LAMP RLY CTRL
FRONT FOG LAMP RELAY
GRN WIRE
GRN/BRN WIRE
GRN/YEL WIRE
GROUND DISTRIBUTION SYSTEM
HDLP DIMMER SW HI BEAM SIG
HDLP HI BEAM RLY
HDLP SW FLASH TO PASS SIG
HDLP SW HDLP OFF SIG CTRL
HEADLAMP HIGH BEAM RELAY
HEADLAMP SWITCH ON SIGNAL
HIGH BEAM ASSIST
HIGH BEAM AUTO ON/OFF SWITCH SIGNAL
HIGH SPEED GMLAN SERIAL DATA (-) (1)
HOT AT ALL TIMES
HVAC CONTROL MODULE
LEFT HEADLAMP ASSEMBLY
LEFT HIGH BEAM HEADLAMP
LEFT LOW BEAM HEADLAMP
LH HDLP LOW BEAM CTRL
LIGHTING CTRL SW REF
LIGHTING CTRL SW SIG
LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 9
LOW SPEED GMLAN SERIAL DATA
RED/BLU WIRE
RED/BRN WIRE
RED/GRN WIRE
RED/GRY WIRE
RH HDLP LOW BEAM CTRL
RIGHT HEADLAMP ASSEMBLY
RIGHT HIGH BEAM HEADLAMP
RIGHT LOW BEAM HEADLAMP
SOLAR SENSOR LOW REFERENCE
TURN SIGNAL/ MULTI-FUNCTION SWITCH
UNDERHOOD FUSE BLOCK
WHT WIRE
WHT/BLU WIRE
WHT/BRN WIRE
WHT/GRY WIRE
WHT/VIO WIRE
YEL WIRE
YEL/BRN WIRE
Headlights circuit, w/o led headlamps (2 of 2)
AUTO
BLK WIRE
BLK/WHT WIRE
BRN/VIO WIRE
COMPUTER DATA LINES SYSTEM
DIMMER SWITCH
DRIVER INFORMATION CENTER DISPLAY
FRONT FOG LAMP IND
FRONT FOG LAMP SWITCH
GRN/BRN WIRE
GRY/GRN WIRE
HEAD
HEADLAMP SWITCH
HIGH BEAM IND
HOT AT ALL TIMES
HOT W/ IGNITION MAIN RELAY ENERGIZED
INSTRUMENT CLUSTER
LEFT FRONT FOG LAMP
LOGIC
LOW SPD GMLAN SER DATA
OFF
PARK
RED/BLU WIRE
RED/BRN WIRE
RED/GRY WIRE
RIGHT FRONT FOG LAMP
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