GMC Sierra IV (2018-2022) yel/gry Wiring diagrams

AUTOMATIC TRANSMISSION ASSEMBLY BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE NCA WIRE ORG/ WIRE TRANSMISSION CONTROL SOLENOID VALVE 1 TRANSMISSION CONTROL SOLENOID VALVE 2 TRANSMISSION CONTROL SOLENOID VALVE 3 TRANSMISSION CONTROL SOLENOID VALVE 4 TRANSMISSION CONTROL SOLENOID VALVE 5 TRANSMISSION CONTROL SOLENOID VALVE 6 TRANSMISSION CONTROL SOLENOID VALVE 9 TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SPEED SENSOR 1 TRANSMISSION INTERMEDIATE SPEED SENSOR 2 TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSION RANGE SENSOR VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/ORG WIRE YEL/VIO WIRE

10 SPEED A/T 5.3L 2.7L TURBO 8 SPEED A/T AUTOMATIC TRANSMISSION ASSEMBLY (10 SPEED A/T) AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) AUTOMATIC TRANSMISSION ASSEMBLY (8 SPEED A/T) BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/WHT WIRE COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENG CTRL ENG CTRL VEH ENGINE CONTROL MODULE ENGINE CONTROL MODULE (4.3L) GMLAN SERIAL DATA BUS (-) 1 GRN WIRE GRN/YEL WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 IGN MODE SW MODE CTRL IGN MODE SW MODE CTRL BACKUP INT MODE SW MODE CTRL Y NCA WIRE ORG/ WIRE RED WIRE TRAILER CONNECTOR TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION PARK/NEUTRAL SIG 1 TRANSMISSION RANGE SENSOR VIO/BLU WIRE W/ SPECIAL EQUIPMENT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/WHT WIRE GRN/VIO WIRE GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE HEADLAMP RELAY HEADLIGHTS SYSTEM LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE PARK LAMPS RELAY RED/GRN WIRE STOP LAMP RELAY TRAILER LIGHTING CONTROL MODULE UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE

BLK WIRE BRN/WHT WIRE CARGO LAMP RELAY CENTER HIGH MOUNTED STOP LAMP GRN/VIO WIRE GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES LIFTGATE COURTESY LAMP RED/WHT WIRE RIGHT FRONT SIDE MARKER LAMP RIGHT FRONT TURN SIGNAL LAMP RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE RIGHT INSTRUMENT PANEL FUSE BLOCK UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL/GRY WIRE

BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISABLE SIG DRIVER INFORMATION CENTER DISPLAY GMLAN SERIAL DATA GRN WIRE GRN/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT INSTRUMENT PANEL CENTER ACCESSORY FUNCTION SWITCH LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT MIDDLE REAR PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LEFT OUTER REAR PARKING ASSIST SENSOR LEFT/RIGHT/MID SENS LF MIDDLE SENS SIG LF OUTER SENS SIG LOGIC LR OUTER SENS SIG OBJECT SENS LOW REF OBJECT SENS SPLY VOLT PARKING ASSIST CONTROL MODULE PARKING ASSIST IND PARKING ASSIST SWITCH REAR PARK ASSIST DISABLE SIG RED/GRN WIRE RF MIDDLE SENS SIG RF OUTER SENS SIG RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT MIDDLE REAR PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RIGHT OUTER REAR PARKING ASSIST SENSOR RR MIDDLE SENS SIG RR OUTER SENS SIG SENS LOW REF SERIAL DATA COMM ENABLE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ACC VOLT ANT 1 HI SIG ANT 1 LO SIG ANT 2 HI SIG ANT 2 LO SIG ANT HI SIG ANT LO SIG BATT POSITIVE VOLT 43 BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRV DR ANT HI SIG DRV DR ANT LO SIG DRV DR HANDLE SW SIG DRV DR OPEN SW SIG IGN MODE SW CHALLENGE ACTV SIG IGN MODE SW SIG 2 GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT PANEL COMPARTMENT KEYLESS ENTRY ANTENNA KEYLESS ENTRY CONTROL MODULE LEFT INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN SERIAL DATA LR DR HANDLE SW SIG PASS DR ANT HI SIG PASS DR ANT LO SIG PASS DR HANDLE SW SIG PASSIVE START SW 2 LO REF PNK WIRE POWER DISTRIBUTION SYSTEM REAR COMPARTMENT KEYLESS ENTRY ANTENNA RED/YEL WIRE RETAINED ACC PWR RELAY 2 COIL CTRL RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT STEERING COLUMN LCK SIG VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRY 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

2.7L TURBO BACKUP ALARM (IF EQUIPPED) BACKUP LAMP RELAY CONTROL BATTERY FUSE BLOCK BLK WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BODY CONTROL MODULE (LEFT END OF DASH) COMPUTER DATA LINES SYSTEM EXTERIOR LAMPS CIRCUIT GMLAN SERIAL DATA - 1 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND 17 GRY/BRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY LEFT TRAILER TURN SIG LAMP CONTROL LH REAR TRAILER STOP/TURN LAMP CTRL LOW SPEED GMLAN SERIAL DATA NCA WIRE PARK LAMP RELAY CONTROL PARK LAMPS RELAY RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE RH REAR TRAILER STOP/TURN LAMP CTRL RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY RIGHT TRAILER TURN SIG LAMP CONTROL RUN/CRANK IGNITION 1 VOLTAGE 4 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 56 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 58 STOP LAMP RELAY COIL CONTROL TRAILER BACKUP LAMP CONTROL TRAILER BACKUP LAMPS RELAY TRAILER CONNECTOR TRAILER LIGHTING CONTROL MODULE TRAILER PARK LAMP CONTROL UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/WHT WIRE W/ SPECIAL EQUIPMENT W/O SPECIAL EQUIPMENT WHT WIRE WHT/GRN WIRE YEL/BLU WIRE YEL/GRY WIRE

BLK WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ETHERNET BUS 7 (-) FRONT AXLE ENGAGEMENT ACTUATOR FRT AXLE ACTR CTRL GEAR POSI SENS LOW REF GND 44 GRN WIRE GRY/BLK WIRE GRY/BLU WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (-) 1 ROTARY POS SENS SIG HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INCREMENTAL ENCODER DIR SIG INCREMENTAL ENCODER IMPULSE SIG INCREMENTAL ENCODER SENS LOW REF INSTRUMENT CLUSTER J155 (6.6L TURBO DIESEL) J155 (6.6L) J157 (6.6L TURBO DIESEL) KNOCK SENS SHLD LOGIC NEUTRAL IND CTRL POWER DISTRIBUTION SYSTEM PRIMARY FUSED BATT POS VOLT 13 RED/GRY WIRE SER DATA COMMU ENABLE TRANSFER CASE CONTROL MODULE TRANSFER CASE LOCK SOL VLV CRTL TRANSFER CASE MTR CLOCKWISE CTRL TRANSFER CASE MTR COUNTER CLOCKWISE CTRL TRANSFER CASE MTR SHLD UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

4108 (OR 2203) 5 VOLT REF 6.6L TURBO DIESEL AIR CONDITIONING SYSTEM AUTO SWITCH BLK WIRE BLK/GRY WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BODY CONTROL MODULE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVE MODE SELECT SWITCH ENGINE CONTROL MODULE GRN WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 J107 (6.6L) J110 (6.6L) LEFT SWITCH LOW REF NCA WIRE RIGHT SWITCH RUN IGNITION 3 VOLTAGE SNOW SWITCH SPORT SWITCH SW SIG TRANSFER CASE MOTOR VIO WIRE VIO/BRN WIRE WHT WIRE WHT/BRN WIRE WHT/GRN WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE