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

ACC WAKEUP SER DATA BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/WHT WIRE BODY CONTROL MODULE (LEFT END OF DASH) BUS 1 BUS 11 (-) BUS 15 BUS 2 BUS 4 DATA LINK CONNECTOR FRONT SEAT HEATING CONTROL MODULE GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HI SPD SER DATA (+) 1 LIN SER DATA BUS 3 HI SPD SER DATA (-) 1 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IMMOBILIZER CONTROL MODULE LEFT REAR WINDOW SWITCH LIN SER DATA LIN SER DATA BUS 1 LIN SER DATA BUS 11 LIN SER DATA BUS 15 LIN SER DATA BUS 2 LIN SER DATA BUS 4 LO SPD GMLAN SER DATA POWER SUPPLY TRANSFORMER REAR SEAT HEATING CONTROL MODULE REAR SEAT HEATING SWITCH RED/VIO WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR WINDOW SWITCH SER DATA COMM ENABLE SUNROOF MOTOR VIO/BLK WIRE VIO/YEL WIRE W/ KEYLESS ENGINE START SWITCH WHT WIRE WHT/BLU WIRE

BATTERY POSITIVE VOL BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BUS 19 BUS 9 COMM ENABLE DATA DATA (-) 11 DATA (-) 12 DATA (-) 13 DATA (-) 8 DATA 9 (+) ETHERNET BUS 4 (-) GMLAN GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HI DATA (+) 9 HI SPD GMLAN SER HVAC CONTROL MODULE HVAC CONTROLS KEYLESS ENTRY CONTROL MODULE LIN SER DATA LO SPD LO SPD DATA 2 LO SPD GMLAN LOW LEVEL LOW SPD GMLAN MID/HIGH LEVEL NCA WIRE PARKING ASSIST CONTROL MODULE PASSENGER PRESENCE MODULE RED/VIO WIRE SEAT MEMORY CONTROL MODULE SER DATA SER DATA (+) 2 SER DATA - (3) SERIAL SERIAL DATA SIG GND STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE W/ FORWARD COLLISION W/O FORWARD COLLISION W/ ONSTAR W/O ONSTAR WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

2.7L TURBO EXCEPT 2.7L TURBO, 3.0L TURBO DIESEL 3.0L TURBO DIESEL 3.0L 3.0L TURBO DIESEL 5.3L, 6.2L AUXILIARY HEATER COOLANT PUMP RELAY BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BRN WIRE BRN/GRY WIRE BRN/YEL WIRE CABIN HEATER COOLANT MOTOR CTRL COMPUTER DATA LINES SYSTEM COOL DIVERTER VAL ACT CTRL HI COOL DIVERTER VAL ACT CTRL LOW COOL DIVERTER VAL POS SENS LOW REF COOLANT TEMP SENS 2 SIG DRIVER INFORMATION CENTER DISPLAY ENGINE BLOCK COOLANT TEMP SIG ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT TEMP SENS 3 SIG ENGINE COOLANT TEMP SENS SIG ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 ENGINE CTRL SENS 5 VOLT REF (2) ENGINE CTRL SENS LOW REF (3) ENGINE CTRL SENS LOW REF 1 ENGINE CTRL SENS LOW REF 2 ENGINE INLET COOLANT TEMP SIG ENGINE OUTLET COOLANT TEMP SIG GRN WIRE GRY WIRE GRY/VIO WIRE HEATER CORE INLET TEMP SIG HEATER CORE OUTLET TEMP SIG HI SPD COOLING FAN RELAY CTRL HI SPD GMLAN SERIAL DATA (+) (3) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER LOGIC LOW SPEED GMLAN SERIAL DATA 2 RADIATOR COOLANT TEMPERATURE SENSOR RED WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGNITION 1 VOLTAGE SIGNAL GROUND UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/YEL WIRE WHT WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

3.0L TURBO DIESEL ACCEL PEDAL POS LO REF 1 ACCEL PEDAL POS SIG 1 ACCL PEDAL POS 5 VOLT REF 1 ACCL PEDAL POS 5 VOLT REF 2 ACCL PEDAL POS LOW REF 2 ACCL PEDAL POS SIG 2 ADAPTIVE CRUISE CTRL GAP UP/DOWN SW SIG CRUISE CTRL SET/COAST/ RES/ACC SW SIG BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POSI SENS SIG BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRAKE SIGNAL ENG CTRL SENS 5 VOLT REF (3) ENG CTRL SENS 5 VOLT REF 2 ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) EXCEPT 2.7L TURBO 2.7L TURBO EXCEPT 3.0L TURBO DIESEL GRN/WHT WIRE GROUND GRY/GRN WIRE HI SPD GMLAN SRL DATA (-) (1) HIGH SPEED GMLAN DATA (-) 1 HOT AT ALL TIMES LOGIC LOW REFERENCE RED/BLU WIRE RED/BRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SIG GND THRTL ACTR CTRL CLOSE THRTL ACTR CTRL OPEN THRTL POS SENS 5 VOLT REF THRTL POS SENS SIG 1 UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

AUXILIARY BATTERY FUSE BLOCK BLK WIRE BLK/WHT WIRE BRN/ORG WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR GRN WIRE GROUND DISTRIBUTION SYSTEM HOT AT ALL TIMES HVAC CONTROL MODULE (BEHIND UPPER LEFT SIDE OF DASH) HVAC CONTROLS LOGIC LOW SPEED GMLAN SERIAL DATA NCA WIRE PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR DEFOGGER GRID REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER RLY CTRL REAR DEFOGGER SWITCH RED/YEL WIRE UNDERHOOD FUSE BLOCK

B+ VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE COMBINED VEHICLE INERTIAL SENSOR SUPPLY VOLT COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE GRN WIRE GRN/BRN WIRE GROUND GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT PRESSURE SENSOR LOGIC LOW REF LOW SPD GMLAN SERIAL DATA 2 POWER STEERING CONTROL MODULE (ON POWER STEERING RACK ASSEMBLY) POWER STEERING PRESSURE SENSOR RED WIRE RED/WHT WIRE RIGHT PRESSURE SENSOR SERIAL DATA COMMUNICATION ENABLE SIGNAL GROUND STEERING SOL CONTROL STEERING SOL LOW REF STEERING WHEEL ANGLE SENSOR UNDERHOOD FUSE BLOCK VARIABLE POWER STEERING SOLENOID VALVE WHT WIRE WHT/BLU 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

BLK/ORG WIRE BLK/WHT WIRE BRN/ORG WIRE COMPUTER DATA CREW CAB EXTENDED CAB DRIVER SEAT BELT RETRACTOR PRETENSIONER GRN WIRE GRY/ORG WIRE HOT AT ALL TIMES LEFT FRONT IMPACT SENSOR LEFT FRONT SIDE IMPACT SENSOR LEFT REAR SIDE IMPACT SENSOR LEFT ROOF RAIL AIR BAG LINES SYSTEM LO SPD GMLAN ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/WHT WIRE ORG/YEL WIRE PASSENGER PRESENCE MODULE PASSENGER SEAT BELT TENSION SENSOR RED/GRN WIRE RIGHT FRONT IMPACT SENSOR RIGHT FRONT SIDE IMPACT SENSOR RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR SIDE IMPACT SENSOR SENS SIG SENS VOL REF SHORTING BAR VIO/ORG WIRE

AIR BAG IND AIR BAG OFF IND AIR BAG ON IND BATT POS VOLT PASS SEAT BELT IND BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/ORG WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FRONT OVERHEAD CONSOLE ASSEMBLY GRN WIRE GRY WIRE GRY/GRN WIRE GRY/ORG WIRE HI SPD GMLAN (-) 2 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LO SPD GMLAN LOGIC LOW SPD GMLAN SERIAL DATA MOD STAGE 1 HI MOD STAGE 1 LO MOD STAGE 2 HI MOD STAGE 2 LO ORG/ WIRE ORG/GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS AIR BAG OFF IND PASS AIR BAG ON IND PASS MOD SW RET PASS MOD SW SIG PASS STAGE 1 HI PASS STAGE 1 LO PASS STAGE 2 HI PASS STAGE 2 LO PASSENGER INSTRUMENT PANEL AIR BAG RED/GRN WIRE SD COMM ENABLE SEAT BELT IND SERIAL DATA SHORTING BAR STEERING WHEEL AIR BAG COIL VIO WIRE VIO/WHT WIRE W/ ROLL OVER SENSING SWITCH WHT WIRE WHT/BLU WIRE WHT/ORG WIRE YEL WIRE YEL/ORG WIRE

ACCESSORY WAKE UP SERIAL DATA AUXILIARY CHASSIS CONTROL MODULE BATT POS VOLT BATTERY POSITIVE VOLTAGE HIGH SPEED GMLAN SERIAL DATA (+) 1 BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) CHASSIS CONTROL MODULE LIN BUS 1 COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEMS GRN/BLU WIRE GRN/VIO WIRE GROUND GROUND 17 HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LOCAL INTERCONNECT N/W BUS 33 RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGNITION 1 VOLTAGE 4 TRAILER AUXILIARY CTRL TRAILER BRAKE APPLY SIGNAL TRAILER BRAKE CONTROL SWITCH TRAILER BRAKE CTRL SIG TRAILER BRAKE ENABLE SIG TRAILER BRAKE ENABLE SIGNAL TRAILER BRAKE POWER CONTROL MODULE UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL/BLK WIRE