GMC Sierra IV (2018-2022) lo spd Wiring diagrams

BLU WIRE BLU/GRY WIRE BLU/YEL WIRE GRN WIRE GRN/BLU WIRE GRN/YEL WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SERIAL DATA (-) (2) HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR HVAC CONTROL MODULE HVAC CONTROLS LIN BUS 1 LIN BUS 2 LO SPD LO SPD GMLAN LO SPD GMLAN SER DATA SER DATA SERIAL DATA COMM ENABLE STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE W/O VARIABLE ASSIST POWER STEERING WHT WIRE WHT/BLU WIRE WHT/GRY 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

AUTO BACKUP LAMPS CIRCUIT BASE BASE EQUIPMENT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE CARGO CHEVROLET COMPUTER DATA LINES SYSTEM DATA DRIVER INFORMATION CENTER DISPLAY EXCEPT BASE EXCEPT BASE EQUIPMENT GMC GMC/ CHEVROLET GMLAN GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HEAD HEADLAMP SWITCH INSTRUMENT CLUSTER LAMP LEFT BACKUP LAMP LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/ STOP SIGNAL LAMP LEFT TURN IND LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LO SPD LOGIC OFF PARK PARK LAMP IND POSITIVE RED WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TAIL/ STOP SIGNAL LAMP RIGHT TURN IND RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP SER SWITCH TASK VIO/BLK WIRE VIO/WHT WIRE VOLT W/ LED W/O DRIVER INFO ENHANCED DISPLAY INSTRUMENT W/O LED WHT/GRY WIRE WHT/VIO WIRE YEL/BLU WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLU WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRANK DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY GMLAN GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LEFT BACKUP LAMP LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LO SPD LOGIC PARKS LAMPS IND RED WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TURN IND RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP RUN/ SER VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O DRIVER INFO ENHANCED DISPLAY INSTRUMENT WHT WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE

BACKUP LAMPS CIRCUIT BLK WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRANK DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY GMLAN GRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LEFT BACKUP LAMP LEFT LOWER TAIL/STOP, TURN SIGNAL LAMP LEFT REAR SIDE MARKER LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LEFT UPPER TAIL/STOP, TURN SIGNAL LAMP LO SPD LOGIC PARKS LAMPS IND RED WIRE RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RIGHT BACKUP LAMP RIGHT INSTRUMENT PANEL FUSE BLOCK RIGHT LOWER TAIL/STOP, TURN SIGNAL LAMP RIGHT REAR SIDE MARKER LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TURN IND RIGHT UPPER TAIL/STOP, TURN SIGNAL LAMP RUN/ SER VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O DRIVER INFO ENHANCED DISPLAY INSTRUMENT WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN 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

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

ACTIVE GRILLE AIR SHUTTER 1 ACTUATOR LOGIC ACTIVE GRILLE AIR SHUTTER 2 ACTUATOR LOGIC ACTUATOR HIGH CTRL ACTUATOR LOW CTRL BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE BUS 21 COMPUTER DATA LINES SYSTEM CTRL DATA DATA 2 (+) DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE OIL IND EVAPORATIVE EMISSION PURGE PUMP EXHAUST CAMSHAFT POSITION ACTUATOR SOLENOID VALVE EXHAUST SENS CTRL 1 FIELD DUTY CYCLE SIG FUEL GAUGE IND GMLAN GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HI VOLT CTRL CYLINDER 1 HI VOLT CTRL CYLINDER 3 HI VOLT SPLY CYLINDER 1 HI VOLT SPLY CYLINDER 3 IGNITION CONTROL 1 IGNITION CONTROL 3 IND INSTRUMENT CLUSTER INTAKE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE INTAKE SENS CTRL 1 KNOCK SENSOR #2 KNOCK SENSOR 1 LO SPD LOGIC MAIN RLY FUSED SPLY (1) MALFUNCTION IND LAMP OIL PUMP COMMAND SIG OIL PUMP MOTOR CTRL POSI INTAKE SENS 1 SER SERIAL STARTING/ CHARGING SYSTEM VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE

BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE CLUSTER CLUSTER SYSTEM COMPUTER DATA COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE OIL IND ENGINE OIL PRESSURE SENSOR EVAP CANISTER VENT SOL CTRL EVAPORATIVE EMISSION PURGE SOLENOID VALVE FUEL GAUGE IND FUEL LEVEL SENS LO REF FUEL LEVEL SENSOR FUEL PUMP FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE (UNDER REAR OF VEHICLE, ABOVE SPARE TIRE) FUEL PUMP PRIMARY RELAY CTRL FUEL PUMP SPLY VOLT PHASE 2 FUEL PUMP SPLY VOLT PHASE 3 FUEL PUMP, LEVEL SENSOR ASSEMBLY FUEL SYS CTRL MOD SHIELD GND FUEL TANK PRESS SENS SIG FUEL TANK PRESSURE SENSOR FUEL TANK VAPOR GMLAN GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HI SPEED GMLAN SER DATA (-) 7 IGN INSTRUMENT INSTRUMENT CLUSTER LINES SYSTEM LO SPD LOGIC MALFUNCTION IND LIGHT POWERTRAIN SENS BUS ENABLE PRESS SENS LO REF PRIMARY FUEL LEVEL SENS SIG RED/BRN WIRE RED/VIO WIRE RUN/CRANK IGNITION 1 VOLT SYSTEM VIO/BLU WIRE VIO/GRN WIRE WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE

BATT POS BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRN WIRE BRN/RED WIRE BRN/WHT WIRE CHECK ENG CLUSTER SYSTEM COMPUTER DATA COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE OIL IND ENGINE OIL PRESSURE SENSOR EVAP VENT SOL VALVE CTRL EVAPORATIVE EMISSION PURGE SOLENOID VALVE FUEL GAUGE IND FUEL LEVEL SENS LO REF FUEL PRESS SENS LO REF FUEL PRESS SENS SIG FUEL PRESSURE SENSOR FUEL PUMP FUEL PUMP CTRL FUEL PUMP PRIMARY RLY CTRL FUEL TANK PRESS SENS SIG FUEL TANK PRESSURE SENSOR GMLAN GMLAN SER DATA (-) 7 GND 18 GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/GRN WIRE IND CNTRL INSTRUMENT INSTRUMENT CLUSTER LINES SYSTEM LO SPD LOGIC MALFUNCTION IND LIGHT POWER DISTRIBUTION SYSTEM PRESS SENS LO REF PRIMARY FUEL LVL SENS SIG PRIMARY FUEL PUMP, LEVEL SENSOR ASSEMBLY RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RELAY CTRL RUN/CRANK IGNITION 1 VOLT SHIELD GND SPLY VOLT PHASE 2 SPLY VOLT PHASE 3 TRANSMISSIONS SYSTEM VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VOLT 28 W/ DUAL TANK W/O DUAL TANK WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE