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

ACCESSORY WAKEUP SERIAL DATA BATT POS VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRK TRANS SHIFT INTERLOCK SOL CTRL BRN/BLU WIRE BRN/WHT WIRE CLUTCH C CTRL CLUTCH D CTRL CLUTCH E CTRL COMPUTER DATA LINES SYSTEM DEFAULT DISABLE SOL CTRL DRIVER INFORMATION CENTER DISPLAY ETHERNET BUS 7 (-) GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HI SP GMLAN HI SP GMLAN SER DATA (+) 1 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 (PINS: 39 TO 48 NOT USED) HI SPD GMLAN SERIAL DATA (-) 1 (PINS: 55 TO 62 NOT USED) 63 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE CTRL IN SPD SIG INSTRUMENT CLUSTER KEY CAPTURE SOLENOID ACTUATOR LOGIC OUTPUT SPD SIG POWER DISTRIBUTION SYSTEM RED/BLU WIRE RED/GRN WIRE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGNITION 1 VOLT SER DATA (-) (1) SHIFT SEL SW PERFORMANCE SIG SHIFT SEL SW PRK SIG SIG GROUND STRG CLMN KEY CYLINDER LOCK SOL CTRL TAP UP/TAP DOWN SW SIG TORQUE CONV CLTH SOL CTRL TOW/ HAUL SWITCH TRANS CLUTCH F CTRL TRANS CLUTCH G CTRL (PINS: 5, 6 NOT USED) 7 TRANS CLUTCH H CTRL TRANS HI SIDE DRIVER 2 SIG TRANS HIGH SIDE DRV 1 SIG DRV TRANS INPUT SPD SENSOR SIG TRANS INTERMEDIATE SPD SIG TRANS MAINLINE PRESS SOL CTRL TRANS OIL TEMP SENS LOW REF TRANS OIL TEMP SENS SIG TRANSMISSION CONTROL MODULE TRANSMISSION MANUAL SHIFT SWITCH UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/WHT WIRE

AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/WHT WIRE BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY GRN WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED POWER DISTRIBUTION SYSTEM PRESSURE CONTROL SOLENOID VALVE 1 PRESSURE CONTROL SOLENOID VALVE 2 PRESSURE CONTROL SOLENOID VALVE 3 PRESSURE CONTROL SOLENOID VALVE 4 PRESSURE CONTROL SOLENOID VALVE 5 RED WIRE RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SHIFT SOLENOID VALVE 1 SHIFT SOLENOID VALVE 2 TORQUE CONVERTER CLUTCH PRESSURE CONTROL SOLENOID VALVE TRANSMISSION CONTROL MODULE TRANSMISSION FLUID PRESSURE SWITCH TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION OUTPUT SHAFT SPEED SENSOR UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE YEL WIRE

2.7L TURBO 3.0L TURBO DIESEL 5.3L ACCESSORY WAKEUP SERIAL DATA AUTO SWITCH BATT POS VOLT BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/RED WIRE BRN WIRE BRN/WHT WIRE CLUTCH A CTRL CLUTCH B CTRL CLUTCH C CTRL CLUTCH SOLENOID CTRL COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM GMLAN SERIAL DATA (-) (1) (PINS: 39 TO 46 NOT USED) GMLAN SERIAL DATA (-) (1) (PINS: 55 TO 58 NOT USED) 59 GMLAN SERIAL DATA - 1 GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INPUT SPD SIG LEFT SWITCH LOW REF 3 OUTPUT SPD SIG POWER DISTRIBUTION SYSTEM RED/GRN WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT SWITCH RUN/CRANK IGNITION 1 VOLT SERIAL DATA (-) (1) SIG GROUND SNOW SWITCH SOLENOID LOW SIDE CONTROL SPORT SWITCH SWITCH SIG TCC ON/OFF SOLENOID A CTRL TCC ON/OFF SOLENOID B CTRL TRANS CLUTCH G CTRL TRANS CLUTCH H CTRL TRANS HI SIDE DRIVER 1 SIG TRANS HI SIDE DRIVER 2 SIG TRANS INTERMEDIATE SPD SIG TRANS MAIN LINE PRESSURE SOLENOID CTRL (PINS: 4 TO 6 NOT USED) 7 TRANS OIL TEMP SENS LO REF (PINS: 29 TO 32 NOT USED) TRANS OIL TEMP SENS SIG TRANS SENS A 9 VOLT REF (PINS: 9 TO 12 NOT USED) 13 TRANS SENS B 9 VOLT REF TRANSMISSION CONTROL MODULE (BEHIND LEFT CORNER OF THE RADIATOR) UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/WHT WIRE VIO/YEL WIRE VOLT REF (1) WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

2.7L TURBO EXCEPT 2.7L TURBO, 3.0L TURBO DIESEL 3.0L TURBO DIESEL 5.3L, 6.2L A/C COMPRESSOR CLUTCH RELAY A/C COMPRESSOR CLUTCH RELAY CTRL A/C REFRIGERANT PRESSURE SENS SIG AIR COOLANT TEMPERATURE SIGNAL AUXILIARY HEATER COOLANT PUMP RELAY BATTERY POSITIVE VOLTAGE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE CABIN HEATER COOLANT MOTOR CTRL CHARGE AIR COOLER INLET TEMPERATURE SENSOR CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR 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 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 SENSOR ENGINE COOLANT TEMPERATURE SENSOR 7 ENGINE CTRL SENS 5 VOLT REF (2) ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF (3) ENGINE CTRL SENS LOW REF 1 ENGINE CTRL SENS LOW REF 2 ENGINE CTRL VEHICLE SENS LOW REF 1 ENGINE INLET COOLANT TEMP SIG ENGINE OUTLET COOLANT TEMP SIG GRN WIRE GRY/VIO WIRE HEATER CORE INLET TEMP SIG HEATER CORE OUTLET TEMP SIG HI SPD GMLAN SERIAL DATA (+) (3) HIGH SPEED COOLING FAN RELAY CTRL HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INLET TEMPERATURE SENSOR SIGNAL OUTSIDE AMBIENT AIR TEMP SENS SIG RED WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SIGNAL GROUND TEMPERATURE SENSOR 1 LOW REF TEMPERATURE SENSOR LOW REFERENCE UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/YEL WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

6.6L DIESEL AUXILIARY BATTERY AUXILIARY BATTERY FUSE BLOCK AUXILIARY GENERATOR BATTERY BATTERY CURRENT SENSOR BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) BRN WIRE CHARGE IND CTRL CHARGE INDICATOR COMPUTER DATA LINES SYSTEM CURRENT SENSOR LOW REF CURRENT SENSOR SIG DRIVER INFORMATION CENTER DISPLAY DUTY CYCLE SIG ENGINE CONTROL MODULE GENERATOR GRN WIRE GROUND CURRENT SENSOR VOLT REF GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED J112 (6.6L DIESEL) J158 (6.6L) LOGIC INSTRUMENT CLUSTER LOW SPEED GMLAN SERIAL DATA ORG/ WIRE RED WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RUN/CRANK IGN 1 VOLT SERIAL DATA (-) 7 SNOW PLOW FUSE BLOCK (IF EQUIPPED) (RIGHT FRONT OF ENGINE COMPT) SNOW PLOW FUSE HOLDER SNOW PLOW RELAY UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRN WIRE W/ SNOW PLOW PROVISIONS W/O SNOW PLOW PROVISIONS WHT WIRE WHT/YEL WIRE YEL WIRE

BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG DOME/READING LP CONTROL DOME/READING LP DISABLE SW SIG DOUBLE, CREW CAB DRIVER DOOR HANDLE FLOOD LAMP DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR LOGIC FRONT OVERHEAD CONSOLE ASSEMBLY FRT FOOTWELL ACCENT LIGHTING CONTROL GND 11 GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INADVERTENT LOAD CTRL INTR DOOR HANDLE ACCENT LIGHTING CTRL LF DR AJAR SW SIG LOGIC NCA WIRE PASSENGER DOOR HANDLE FLOOD LAMP PNK WIRE RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RF DR AJAR SW SIG RIGHT INSTRUMENT PANEL FUSE BLOCK SECONDARY FUSED BATT POSITIVE VOLTAGE 34 SECONDARY FUSED BATT POSITIVE VOLTAGE 51 VIO/GRN WIRE W/ FORWARD COLLISION ALERT, FULL VIDEO DISPLAY MIRROR W/ POWER OPERATED, EXPRESS UP/DOWN W/O FORWARD COLLISION ALERT, FULL VIDEO DISPLAY MIRROR W/O POWER OPERATED, EXPRESS UP/DOWN WHT WIRE WHT/BRN WIRE WHT/YEL WIRE

AC PWR OUTLET STATUS IND CTRL BATT POS VOLT 34 BATT POS VOLT 27 BATT POS VOLT 51 DOME LP OFF IND CTRL BLK WIRE BLK/BLU WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH DRIVER DOOR LOCK SWITCH EXHAUST BRAKE SWITCH SIG GRN/BRN WIRE GRN/YEL WIRE HDLP SW OFF SIG HI SPD GMLAN SERIAL DATA (-) 1 HDLP SW ON SIG HEADLAMP SW REF HEAD-UP DISPLAY SWITCH HEADLAMP SW SIG HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGNITION MODE SWITCH IND DIMMING CTRL LED BACK LIGHT DIMMING CTRL 1 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC PARK BRAKE CONTROL SWITCH PNK WIRE POWER DISTRIBUTION SYSTEM RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT STEERING WHEEL CONTROLS SWITCH STEERING WHEEL AIR BAG COIL USB RECEPTACLE VEHICLE STABILITY CONTROL SWITCH VIO/WHT WIRE W/ KEYLESS ENGINE START SWITCH W/ SIDE DOOR LOCK CONTROL W/ STEERING WHEEL ACCESSORY CONTROL W/O SIDE DOOR LOCK CONTROL W/O STEERING WHEEL ACCESSORY CONTROL WHT WIRE WHT/BRN WIRE WHT/VIO WIRE YEL WIRE

2.7L TURBO EXCEPT 2.7L TURBO, 3.0L TURBO DIESEL 3.0L TURBO DIESEL 5.3L, 6.2L A/C COMPRESSOR CLUTCH RELAY A/C COMPRESSOR CLUTCH RELAY CTRL A/C REFRIGERANT PRESSURE SENS SIG AIR COOLANT TEMPERATURE SIGNAL AUXILIARY HEATER COOLANT PUMP RELAY BATTERY POSITIVE VOLTAGE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/YEL WIRE CABIN HEATER COOLANT MOTOR CTRL CHARGE AIR COOLER INLET TEMPERATURE SENSOR CHARGE AIR COOLER OUTLET TEMPERATURE SENSOR 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 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 SENSOR ENGINE COOLANT TEMPERATURE SENSOR 7 ENGINE CTRL SENS 5 VOLT REF (2) ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF (3) ENGINE CTRL SENS LOW REF 1 ENGINE CTRL SENS LOW REF 2 ENGINE CTRL VEHICLE SENS LOW REF 1 ENGINE INLET COOLANT TEMP SIG ENGINE OUTLET COOLANT TEMP SIG GRN WIRE GRY/VIO WIRE HEATER CORE INLET TEMP SIG HEATER CORE OUTLET TEMP SIG HI SPD GMLAN SERIAL DATA (+) (3) HIGH SPEED COOLING FAN RELAY CTRL HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INLET TEMPERATURE SENSOR SIGNAL OUTSIDE AMBIENT AIR TEMP SENS SIG RED WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE TEMPERATURE SENSOR 1 LOW REF TEMPERATURE SENSOR LOW REFERENCE UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/YEL WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

2.7L TURBO 3.0L TURBO DIESEL 4.3L/ 5.3L 5.3L, 6.2L 6.2L AUTO STOP START SWITCH SIGNAL BATTERY BATTERY CURRENT SENSOR BATTERY SENSOR MODULE BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BODY CONTROL MODULE (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) EXCEPT 4.3L GRN WIRE GRN/BLK WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE VOLT IGNITION KEY RESISTOR SIGNAL IGNITION MODE SWITCH IGNITION SWITCH KEYLESS ENTRY CONTROL MODULE (BEHIND LEFT SIDE OF DASH) LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH NCA WIRE OFF OFF/RUN/CRANK IGNITION VOLTAGE PASSIVE START SW 2 LOW REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM PUSH BUTTON START CHALLENGE ACTIVE SIGNAL RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH RUN WIRE RUN/CRANK IGNITION 1 VOLTAGE STARTER MOTOR STARTER PINION SOLENOID ACTUATOR RELAY STARTER PINION SOLENOID RELAY CONTROL STARTER RELAY UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRN WIRE W/ FLEXRIDE MODE SYSTEM W/ START/STOP SYSTEM W/O FLEXRIDE MODE SYSTEM W/O START/STOP SYSTEM WHT WIRE WHT/BLK WIRE WHT/GRY WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/VIO WIRE

AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY GRY WIRE HIGH SPEED GMLAN HOT W/ IGNITION MAIN RELAY ENERGIZED LINES SYSTEM COMPUTER DATA POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (RIGHT SIDE OF DASH) RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SERIAL DATA (-) (1) TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE YEL/BLK WIRE