GMC Sierra IV (2018-2022) wht/vio Wiring diagrams

ANTI-LOCK BRAKES SYSTEM EXTERIOR LIGHTS SYSTEM BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CARGO BED LAMP CTRL COMPUTER DATA LINES SYSTEM COURTESY LAMP SW SIG DOOR LOCK ACTUATOR LOCK CTRL DOOR LOCK ACTUATOR LOCK CTRL 2 DOOR LOCK ACTUATOR UNLOCK CTRL DOOR LOCK KEY SW UNLOCK SIG DOOR LOCKS SYSTEM DOOR LOCKS, EXTERIOR LIGHTS, INTERIOR LIGHTS SYSTEMS DRIVER DOOR LOCK SW LOCK SIG DRIVER DOOR LOCK SW UNLOCK SIG GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLU WIRE HI SPEED GMLAN SER DATA (-) 1 INADVERTENT POWER CTRL LED AMBIENT LIGHTING CTRL 1 LED BACKLIGHT DIMMING CTRL LEFT TAIL LAMP OUTAGE DETECTION SIG LF DOOR AJAR SW SIG FRONT TURN LAMP FEEDBACK SIG LOCAL INTERCONNECT NETWORK BUS SERIAL DATA 3 LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 1 LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 2 MAJOR ENDGATE RELEASE SW SIG EXTERIOR MAJOR ENDGATE RELEASE SW SIG INTERIOR MINOR ENDGATE HIGH RELAY CTRL MINOR ENDGATE LOW RELAY CTRL MINOR ENDGATE RELEASE SW DISCRETE SIG EXTERIOR PASSENGER DOOR LOCK SW LOCK CTRL PASSENGER DOOR LOCK SW UNLOCK CTRL POWER DISTRIBUTION SYSTEM PUDDLE LAMP CTRL RF TURN LAMP FEEDBACK SIG RF DOOR AJAR SW SIG RIGHT TAIL LAMP OUTAGE DETECTION SIG SHIFT INTERLOCK SOLENOID CTRL SHIFT INTERLOCK, TRANSMISSIONS SYSTEMS SHIFT SELECT SW PARK SI SHIFT SELECT SW PERFORMANCE SIG 16 17 TRAILER BRAKE APPLY SIG STANDING LAMP RLY CTRL SURVEILLANCE SW SIG TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE WIRELESS CHARGING SYSTEM FAULT INDICATOR CTRL YEL WIRE YEL/BLK WIRE YEL/VIO WIRE YEL/WHT WIRE

AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) BLK WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY CRUISE IND DRIVER INFORMATION CENTER DISPLAY GRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) INPUT SPD SIG INSTRUMENT CLUSTER LO SPD GMLAN SERIAL DATA LOGIC NCA WIRE OUTPUT SPD SIG RED WIRE TRANS I/P SPEED SENS SIG TRANS INTERMEDIATE SPD SIG TRANSMISSION CONTROL MODULE TRANSMISSION CONTROL MODULE (10 SPEED A/T) (BEHIND LEFT CORNER OF THE RADIATOR) TRANSMISSION CONTROL MODULE (8 SPEED A/T) (BEHIND LEFT CORNER OF THE RADIATOR) TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SPEED SENSOR 1 TRANSMISSION INTERMEDIATE SPEED SENSOR 2 TRANSMISSION OUTPUT SHAFT SPEED SENSOR VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/ORG WIRE

2.7L TURBO 3.0L TURBO DIESEL BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRAKE APPLY SENSOR CONTROL BRAKE APPLY SENSOR SIG BRAKE PEDAL POSITION SENSOR BRAKE POSITION SENSOR BRN/GRN WIRE BRN/WHT WIRE CARGO BED LAMP CONTROL CARGO LAMP SW SIG COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR PUDDLE LAMP CONTROL PUDDLE LAMP CONTROL ENGINE CONTROL ENGINE CONTROL MODULE ENGINE CONTROL SENS LO REF 3 GMLAN DATA - (1) GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HAZARD SW LT TURN SIG HAZARD SW RT TURN SIG HAZARD SW SIG HEADLAMP SW PARK LAMP SIG HOT AT ALL TIMES LAMP RELAY CONTROL LEFT LICENSE PLATE LAMP LF TURN SIG LAMP CONTROL LICENSE PLATE LAMP LR STOP/TURN LAMP CONTROL PARK LAMP RELAY CONTROL POLICE SELECT SUPPLY VOLT 4 PUDDLE LAMP CONTROL REAR LICENSE LAMP CONTROL RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RF TURN SIG LAMP CONTROL RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT LICENSE PLATE LAMP RR STOP/TURN LAMP CONTROL SENS LO REF SER DATA (-) (1) STOP LAMP RELAY CONTROL TURN SIGNAL/ MULTI-FUNCTION SWITCH VEHICLE STABILITY CONTROL SWITCH VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE W/ FLEETSIDE PICK-UP BOX W/O FLEETSIDE PICK-UP BOX WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

BATTERY FUSE BLOCK BLK WIRE BLU WIRE BLU/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CREW CAB, EXTENDED DOUBLE CAB DATA COMPUTER LINES SYSTEM DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRN/GRY WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH (W/O EXPRESS UP/DOWN) LOGIC LOGIC DRIVER WINDOW MOTOR PASSENGER DOOR LATCH ASSEMBLY PNK WIRE RED/YEL WIRE RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH LOGIC VIO WIRE VIO/BLK WIRE VIO/YEL WIRE W/ EXPRESS UP/DOWN W/O EXPRESS UP/DOWN WHT/VIO WIRE WHT/YEL WIRE YEL/BLU WIRE

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

AMBIENT LIGHT SENS SIG AMBIENT LIGHT/ SUNLOAD SENSOR AUTO BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BODY CONTROL MODULE (LEFT END OF DASH) BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DIMMER DIMMER SWITCH DRIVER INFORMATION CENTER DISPLAY FLASH TO PASS FOG LAMP RELAY CONTROL FRONT FOG FRONT FOG LAMP IND GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HDLP DIMMER SW HI BEAM SIG HDLP HI BEAM RLY CTRL HDLP OFF SIG CTRL HDLP SW FLASH TO PASS SIG HDLP SW ON SIG HEAD HEADLAMP SWITCH HIGH BEAM ASSIST HIGH BEAM AUTO ON/OFF SWITCH SIGNAL HIGH BEAM IND HIGH SPD GMLAN SER DATA (-) 1 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE INSTRUMENT CLUSTER LAMP LEFT FRONT FOG LAMP LF DRL CTRL LF HDLP LOW BEAM CTRL LH HDLP RLY CTRL LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 9 LOGIC LOW SPD GMLAN SER DATA IGNITION 1 VOLTAGE RUN/CRANK LOW SPEED GMLAN SERIAL DATA OFF PARK PARK BRAKE CONTROL SWITCH PARK BRAKE SWITCH 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 SIG GND SOLAR SENSOR LOW REFERENCE SWITCH TURN SIGNAL/ MULTI-FUNCTION SWITCH VIO/BLK WIRE 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 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

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