GMC Sierra IV (2018-2022) yel Wiring diagrams

AUTOMATIC TRANSMISSION ASSEMBLY (10 SPEED A/T) AUTOMATIC TRANSMISSION ASSEMBLY (6 SPEED A/T) BACKUP LAMP RLY CTRL BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BRN WIRE BODY CONTROL MODULE (UNDER LEFT SIDE OF DASH) COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE FEEDBACK SIG GRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES IGN IMS MODE CTRL LEFT BACKUP LAMP LEFT TAIL LAMP ASSEMBLY LOGIC NCA WIRE NEUTRAL SIGNAL ORG/ WIRE RED WIRE RED/YEL WIRE RIGHT BACKUP LAMP RIGHT TAIL LAMP ASSEMBLY SERIAL DATA (-) (1) SIG A SIG B SIG C SIG GND SIG P TRAILER BACKUP LAMPS RELAY TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION PARK/ TRANSMISSION RANGE SENSOR UNDERHOOD FUSE BLOCK VOLT SUPPLY A W/ LED W/O LED WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

BASE EQUIPMENT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CHEVROLET COMPUTER DATA LINES SYSTEM EXCEPT BASE EQUIPMENT GMC GRN WIRE GRN/VIO WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/RED WIRE LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/STOP SIGNAL LAMP LEFT TAIL/STOP, TURN SIGNAL LAMP LOGIC PARK BRAKE CONTROL SWITCH PARK BRAKE SW MONITOR SIG 1 PARK BRAKE SW MONITOR SIG 2 PARK BRAKE SW SIG PARK BRAKE SW TEST SIG PARK BRAKE SW VOL REF 1 PARK BRAKE SW VOL REF 2 RED WIRE RED/GRN WIRE RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/STOP SIGNAL LAMP RIGHT TAIL/STOP, TURN SIGNAL LAMP SERIAL DATA COMMUNICATION ENABLE VIO/GRY WIRE VIO/WHT WIRE W/ SINGLE REAR WHEEL, RIDE, HANDLING CHASSIS W/O SINGLE REAR WHEEL, RIDE, HANDLING CHASSIS WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/RED WIRE

BASE BATTERY FUSE BLOCK BLK WIRE BLU/WHT WIRE BRN/WHT WIRE CARGO LAMP RELAY CENTER HIGH MOUNTED STOP LAMP CHEVROLET EXCEPT BASE GMC GRY WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES LEFT FENDER FRONT SIDE MARKER LAMP LEFT FRONT SIDE MARKER LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE LEFT PARK/ TURN SIGNAL LAMP RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK VIO/GRY WIRE W/ LED W/O LED WHT/VIO WIRE YEL WIRE

BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER SEAT MEMORY SWITCH EXIT GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE HOT AT ALL TIMES LIN BUS 1 LOGIC LOW REF PASSENGER WINDOW SWITCH POSITIVE VOLT RED/BRN WIRE RED/WHT WIRE RIGHT INSTRUMENT PANEL FUSE BLOCK SEAT MEMORY CONTROL MODULE SET SIG SET- SWITCH SIG 1 VIO/WHT WIRE WHT WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/WHT WIRE COAX DEFOGGER SYSTEM GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE LOGIC MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM ORG/ WIRE ORG/WHT WIRE 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 PNK WIRE RED/BLU WIRE RIGHT MIDDLE SIDE MARKER LAMP RIGHT SIDE VIEW CAMERA RIGHT TURN SIGNAL REPEATER LAMP VIO/WHT WIRE WHT WIRE YEL WIRE YEL/BLK WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/BLK WIRE BRN/WHT WIRE COAX COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOWN DRIVER OUTSIDE REAR VIEW MIRROR CARGO LAMP DRIVER OUTSIDE REAR VIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REAR VIEW MIRROR FOLDING MOTOR DRIVER OUTSIDE REAR VIEW MIRROR FORWARD EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR VIEW MIRROR LOWER EXTERIOR FLOOD LAMP DRIVER OUTSIDE REAR VIEW MIRROR MOTOR DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/WHT WIRE HOT AT ALL TIMES LEFT LEFT MIDDLE SIDE MARKER LAMP LEFT SIDE VIEW CAMERA LEFT TURN SIGNAL REPEATER LAMP LOGIC MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM ORG/ WIRE ORG/WHT WIRE PNK WIRE RED/BLU WIRE RED/VIO WIRE RIGHT RIGHT INSTRUMENT PANEL FUSE BLOCK RWD VIO/BLU WIRE VIO/RED WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/BLK WIRE COAX DEFOGGER SYSTEM DOWN DRIVER EXTERIOR FLOOD LAMP OUTSIDE REAR VIEW MIRROR FORWARD DRIVER OUTSIDE EXTERIOR FLOOD LAMP REAR VIEW MIRROR LOWER DRIVER OUTSIDE REAR VIEW MIRROR CARGO LAMP DRIVER OUTSIDE REAR VIEW MIRROR FOLDING MOTOR DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR VIEW MIRROR MOTOR DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR DRIVER WINDOW/ OUTSIDE REAR VIEW MIRROR SWITCH ELECTROCHROMIC MIRROR CIRCUIT FOLD IN CTRL FOLDING SWITCH GRN/BLK WIRE GRN/WHT WIRE HOT AT ALL TIMES LEFT LEFT MIDDLE SIDE MARKER LAMP LEFT SIDEVIEW CAMERA LEFT TURN SIGNAL REPEATER LAMP LOGIC B+ MIRROR DIMMING MIRROR MOTOR MIRROR MOTOR FOLD OUT CTRL NAVIGATION SYSTEM OFF ORG/ WIRE ORG/WHT WIRE PASSENGER RED WIRE RED/BLU WIRE RED/VIO WIRE RIGHT RIGHT INSTRUMENT PANEL FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/VIO WIRE

BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/WHT WIRE BRN WIRE COAX BK DEFOGGER SYSTEM ELECTROCHROMIC MIRROR CIRCUIT GRN/BLK WIRE GRN/WHT WIRE MIRROR DIMMING NAVIGATION SYSTEM ORG/ WIRE ORG/WHT WIRE PASSENGER EXTERIOR FLOOD LAMP OUTSIDE REAR VIEW MIRROR FORWARD PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR FOLDING MOTOR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER OUTSIDE REAR VIEW MIRROR MOTOR PASSENGER SIDE OBJECT DETECTION INDICATOR RED/BLU WIRE RIGHT MIDDLE SIDE MARKER LAMP RIGHT SIDE VIEW CAMERA RIGHT TURN SIGNAL REPEATER LAMP VIO/YEL WIRE WHT WIRE WHT/BRN WIRE YEL WIRE YEL/BLK WIRE YEL/VIO WIRE

"CHECK ENGINE" IND CTRL A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION SENSOR AIR CONDITIONING SYSTEM AMBIENT AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM APP LOW REF 1 APP LOW REF 2 APP SIG (1) APP SIG (2) BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRK POS SENS SIG BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE BUS - CABIN HEATER COOLANT MOTOR CTRL COMPUTER DATA LINES SYSTEM COOL FAN RLY CTRL COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DATA ENG CTRL SENS LOW REF 2 ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE SENSOR EVAP SOL CTRL FPP RLY CTRL FUEL TEMP/COMP SIG GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 7 HOOD STATUS A SIG IGN IGNITION MODE SWITCH MODE CONTROL BACKUP OIL LEVEL SW SIG LOGIC MASS AIR FLOW SENS SIG OIL PRESS SENS SIG POWERTRAIN RLY COIL CTRL PWR MAIN RLY FUSED SPLY 1 PWR MAIN RLY FUSED SPLY 2 WAKE-UP SER DATA RED/BRN WIRE RUN/CRANK IGNITION 1 VOLT SERIAL STARTER ENABLE RLY CTRL STARTING/ CHARGING SYSTEM TEMP SENS SIG TRANSMISSION PARK/NEUTRAL SIG 1 TRANSMISSIONS SYSTEM VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE

BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE CYLINDER 1 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 2 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 3 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 4 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 5 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 6 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 7 VALVE LIFTER OIL SOLENOID VALVE CYLINDER 8 VALVE LIFTER OIL SOLENOID VALVE ENGINE OIL PRESSURE CONTROL SOLENOID VALVE GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE KNOCK SENSOR #2 KNOCK SENSOR 1 VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE