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

BLK/BLU WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/BLU WIRE BUS 12 BUS 3 COMM ENABLE DRIVER WINDOW MOTOR DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH ETHERNET BUS 7 (-) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HEAD-UP DISPLAY HI SPD SER DATA (+) 9 LIN SER DATA LIN SER DATA BUS 12 LO SPD DATA 2 LO SPD GMLAN PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH RIGHT STEERING WHEEL CONTROLS SWITCH SER DATA STEERING WHEEL AIR BAG COIL VIO/YEL WIRE W/ DRIVER WINDOW W/ EXPRESS UP/DOWN W/ MULTI COLOR STANDARD GRAPHIC W/ PASSENGER WINDOW W/O EXPRESS UP/DOWN W/O MULTI COLOR STANDARD GRAPHIC WHT WIRE WHT/BLU WIRE WHT/GRN WIRE

ACTIVE GRILLE AIR SHUTTER 1 ACTUATOR ACTIVE GRILLE AIR SHUTTER 2 ACTUATOR BLK WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BUS 12 BUS 21 BUS 32 CHARGE AIR COOLER COOLANT PUMP COMM ENABLE ENGINE COOLANT BYPASS VALVE ENGINE COOLANT PUMP EVAPORATIVE EMISSION PURGE PUMP GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE HEATER COOLANT PUMP HI SPD SER DATA (-) 1 LEFT COOLING FAN MOTOR LIN SER DATA NCA WIRE RIGHT COOLING FAN MOTOR SER DATA TRANSFER CASE CONTROL MODULE UHF LOW ENERGY REMOTE CONTROL ACCESS SENSOR TRANSCEIVER 1 UHF LOW ENERGY REMOTE CONTROL ACCESS SENSOR TRANSCEIVER 2 UHF LOW ENERGY REMOTE CONTROL ACCESS SENSOR TRANSCEIVER 3 UHF LOW ENERGY REMOTE CONTROL ACCESS SENSOR TRANSCEIVER 4 UHF SHORT RANGE LOW ENERGY REMOTE CONTROL ACCESS TRANSCEIVER VIO/YEL WIRE W/O ACTIVE TRANSFER CASE WHT WIRE WHT/BLU WIRE

BATT POS VOLT BLK WIRE BLU/VIO WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN WIRE BRN/VIO WIRE CENTER PICKUP BOX ENDGATE LATCH COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY EXTERIOR PICKUP BOX ENDGATE CONTROL SWITCH GRN WIRE GRN/BLK WIRE GROUND GRY WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT PICKUP BOX ENDGATE LATCH LEFT PICKUP BOX ENDGATE LATCH RELAY LO SPD GMLAN SERIAL DATA LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC MAJOR ENDGATE HIGH RELAY CONTROL MAJOR ENDGATE LOW RELAY CONTROL MAJOR ENDGATE REL SW DISCRETE SIG EXTR MAJOR ENDGATE REL SW SIG EXTR MAJOR ENDGATE REL SW SIG INTR PICKUP BOX ENDGATE UNLATCH SWITCH RED/BLU WIRE RIGHT END OF DASH) RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT PICKUP BOX ENDGATE LATCH RIGHT PICKUP BOX ENDGATE LATCH RELAY VEHICLE STABILITY CONTROL SWITCH W/ ENHANCED WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENDGATE REL SW ANALOG SIG INTERIOR ENDGATE REL SW DISCRETE SIG EXTERIOR EXTERIOR PICKUP BOX ENDGATE CONTROL SWITCH GRN WIRE GRN/BLK WIRE GRY WIRE GRY/BLK WIRE GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT PICKUP BOX ENDGATE LATCH LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC LOW SPEED GMLAN SERIAL DATA ORG/WHT WIRE PICKUP BOX ENDGATE CONTROL MODULE (IN UPPER LEFT SIDE OF ENDGATE) PICKUP BOX ENDGATE POWER ASSIST ACTUATOR (LOWER RIGHT CORNER OF ENDGATE) PNK WIRE PNK/BLK WIRE REAR CLOSURE CINCH LATCH MTR 2 CINCH CTRL REAR CLOSURE CINCH LATCH MTR 2 REL CTRL REAR CLOSURE CINCH LATCH MTR CLOSE CTRL REAR CLOSURE CINCH LATCH MTR OPEN CTRL REAR CLOSURE CLUTCH CTRL REAR CLOSURE CLUTCH RETURN REAR CLOSURE LATCH 2 PAWL STATUS REAR CLOSURE LATCH 2 RACHET STATUS REAR CLOSURE LATCH 2 SECTOR STATUS REAR CLOSURE LATCH 2 UNLATCH STATUS REAR CLOSURE LATCH PAWL STATUS SIG REAR CLOSURE LATCH RATCHET STATUS REAR CLOSURE LATCH UNLATCH STATUS REAR CLOSURE OBJECT SENS LOW REF REAR CLOSURE OPEN SWITCH SIG REAR CLOSURE OPEN/CLOSE MTR CLOSE CTRL REAR CLOSURE OPEN/CLOSE MTR OPEN CTRL REAR CLOSURE POSITION SENS LOW REF REAR CLOSURE POSITION SENS SIG 1 REAR CLOSURE POSITION SENS SIG 2 REAR CLOSURE POSITION SENS VOLTAGE REF REAR CLOSURE SENS LOW REF 2 RED/GRY WIRE RIGHT PICKUP BOX ENDGATE LATCH VEHICLE STABILITY CONTROL SWITCH VIO WIRE WHT WIRE YEL WIRE YEL/RED WIRE

BATT POS VOLT BLK WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN/BLK WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY EXTERIOR PICKUP BOX ENDGATE CONTROL SWITCH GRN WIRE GRN/BLK WIRE GROUND GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL FUSE BLOCK LEFT PICKUP BOX AUXILIARY ENDGATE LATCH LEFT PICKUP BOX AUXILIARY ENDGATE LATCH RELAY LH MINOR ENDGATE AJAR SIG LO SPD GM LAN SERIAL DATA LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 12 LOGIC MINOR ENDGATE HI RLY CTRL MINOR ENDGATE LOW RLY CTRL MINOR ENDGATE REL SWITCH DISCRETE SIGNAL EXTERIOR RED/BLU WIRE RH MINOR ENDGATE AJAR SIG RIGHT END OF DASH) RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT PICKUP BOX AUXILIARY ENDGATE LATCH RIGHT PICKUP BOX AUXILIARY ENDGATE LATCH RELAY VIO WIRE WHT/BRN WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE

BATT POS BLK WIRE BLK/WHT WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM CRANK DATA DATA 2 (+) DOOR AJAR IND DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRIVER INFORMATION CENTER DISPLAY GMLAN GMLAN SERIAL GND 18 GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ING 1 INSTRUMENT CLUSTER LCK STATUS SIG LEFT FRONT DOOR HANDLE KEYLESS ENTRY ANTENNA LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE SWITCH LO SPD LOCK SIG LOGIC NCA WIRE OFF/ACC VOLT PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PNK WIRE RED/GRY WIRE RIGHT FRONT PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH RUN/ SECURITY IND SERIAL STEERING COLUMN LOCK MODULE VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE VOLT 14 VOLT 16 WHT/YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/YEL WIRE COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOWN DRIVER SEAT MEMORY SWITCH EXIT GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES LEFT LOGIC LOW REF NAVIGATION SYSTEM NETWORK BUS 8 PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR CARGO LAMP PASSENGER OUTSIDE REAR VIEW MIRROR FOLDING MOTOR PASSENGER OUTSIDE REAR VIEW MIRROR FORWARD EXTERIOR FLOOD LAMP PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER OUTSIDE REAR VIEW MIRROR LOWER EXTERIOR FLOOD LAMP PASSENGER OUTSIDE REAR VIEW MIRROR MOTOR PASSENGER SIDE OBJECT DETECTION INDICATOR PASSENGER WINDOW SWITCH POSITIVE VOLT RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE SIDE MARKER LAMP RIGHT SIDE VIEW CAMERA RIGHT TURN SIGNAL REPEATER LAMP RWD SEAT MEMORY CONTROL MODULE SET SIG SET- SWITCH SIG 1 VIO/WHT WIRE W/ AUXILIARY CARGO, CLEAR LAMPS W/ LIGHT SENSITIVE REAR VIEW MIRROR W/O AUXILIARY CARGO, CLEAR LAMPS W/O LIGHT SENSITIVE REAR VIEW MIRROR WHT WIRE WHT/VIO WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BATT POS VOLT 28 BATT POS VOLT 4 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) GRN/BLK WIRE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE GRY/RED WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT PARK BRAKE ACTUATOR LEFT PARK BRAKE MOTOR APPLY CTRL LEFT PARK BRAKE MOTOR LOW REF LOGIC LOW SPD GMLAN SER DATA 2 PARK BRAKE CONTROL SWITCH (ON PARK BRAKE PEDAL ASSEMBLY) PARK BRK APPLY SW VOLT REF 1 PARK BRK APPLY SW VOLT REF 2 PARK BRK SW MONITOR SIG 1 PARK BRK SW MONITOR SIG 2 PARK BRK SW SIG PARK BRK SW TEST SIG PARK IND RED/GRY WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT PARK BRAKE ACTUATOR RIGHT PARK BRK MOTOR APPLY CTRL RIGHT PARK BRK MOTOR LOW REF SERVICE PARK BRAKE IND UNDERHOOD FUSE BLOCK WHT WIRE YEL WIRE YEL/RED WIRE

BLK WIRE BLU/GRY WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM DOWN DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH EXPRESS GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES ILL LEFT FRONT LEFT REAR LEFT REAR WINDOW MOTOR LEFT REAR WINDOW SWITCH LOCKOUT IND LOGIC PASSENGER WINDOW MOTOR PASSENGER WINDOW SWITCH (W/O EXPRESS UP/DOWN) RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT REAR RIGHT REAR WINDOW MOTOR RIGHT REAR WINDOW SWITCH W/ EXPRESS UP/DOWN W/ MEMORY W/O EXPRESS UP/DOWN W/O MEMORY WINDOW LOCK SWITCH WINDOW SWITCH YEL/BLU WIRE

"CHECK ENGINE" IND CTRL A/C COMPRESSOR CLTH RLY CTRL A/C REFRIGERANT PRESS SENS SIG ACC WAKEUP SER DATA ACCELERATOR PEDAL POSI LOW REF 1 ACCELERATOR PEDAL POSI LOW REF 2 ACCELERATOR PEDAL POSI SIG 1 ACCELERATOR PEDAL POSI SIG 2 ACCELERATOR PEDAL POSITION SENSOR AIR CONDITIONING SYSTEM AMBIENT AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM BATT POS VOLT BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRK POS SENS SIG BRN WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT CAM W SIGNAL CAMSHAFT CAM X SIGNAL CAMSHAFT CAM Z CONTROL CAMSHAFT CAM Z SIGNAL CAMSHAFT STEPPER A CONTROL CAMSHAFT STEPPER B CONTROL CAMSHAFT STEPPER C CONTROL CAMSHAFT STEPPER D CONTROL CAMSHAFT STEPPER POSI SENS 1 SIG CAMSHAFT STEPPER POSI SENS 2 SIG CAMSHAFT STEPPER POSI SENS 3 SIG CAMSHAFT STEPPER POSI SENS 4 SIG CAMSHAFT STEPPER POSI SENS SIG COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) EXHAUST LOBE AXIAL POSI SIG 1 EXHAUST LOBE AXIAL POSI SIG 2 FUEL PRESSURE SENSOR FUEL PUMP PRIMARY RELAY CONTROL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE HEATER CORE OUTLET TEMP SIG HI SPD COOLING FAN RLY CTRL HI SPD GMLAN SERIAL DATA (+) (3) HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 7 HOOD STATUS A SIG INTAKE LOBE AXIAL POSI SIG 1 INTAKE LOBE AXIAL POSI SIG 2 LIN BUS 32 MASS AIR FLOW SENS SIG MULTI-FUNCTION INTAKE AIR SENSOR OUTSIDE AMBIENT AIR TEMP SENS SIG POWERTRAIN MAIN RLY FUSED SPLY 2 POWERTRAIN MOUNT SOL CTRL 1 POWERTRAIN RLY COIL CTRL RED/BRN WIRE RUN/CRANK IGN 1 VOLT SIG GND POWERTRAIN MAIN RLY FUSED SPLY 1 STARTER ENABLE RLY CTRL STARTER PINION SOL RLY CTRL STARTING/CHARGING SYSTEM STEP CAM A CTRL STEP CAM B CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE