GMC Sierra IV (2018-2022) eng ctrl sens low ref 2 Wiring diagrams

BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/RED WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE CAC INLET TEMP SENS LOW REF CAC INLET TEMP SENS SIG CAMSHAFT POSITION SENSOR CHARGE AIR COOLER INLET TEMPERATURE SENSOR CHARGE IND CTRL OIL TEMP SENS SIG COMPUTER DATA LINES SYSTEM COOL DRV VLV ACT CTRL CLOSE COOL DRV VLV ACT CTRL OPEN COOL TEMP SENS 2 SIG COOLING FANS SYSTEM CRANKSHAFT POSITION SENSOR DEF DISING VLV LOW CTRL DEF DOSING VALVE HIGH CTRL DFI HI VOLT CTRL CYL 3 DFI HI VOLT CTRL CYL 4 DFI HI VOLT SPLY CYL 3 DFI HI VOLT SPLY CYL 4 DRIVELINE MOUNT ACT 2 CTRL ECM LIN BUS 1 ECM LIN BUS 2 ECM LIN BUS 4 EGR 2 VLV CLOSE CTRL EGR 2 VLV OPEN CTRL EGR 2 VLV POS SENS SIG EGR TEMP SENS 2 SIG ENG CTRL SENS LOW REF 1 ENG CTRL SENS LOW REF 2 ENG INLET COOL TEMP SIG ENG METAL TEMP SENS SIG 2 ENG OIL PMP CTRL ENG OUTLET COOL TEMP SIG ENGINE CONTROL MODULE (BEHIND LEFT HEADLAMP ASSEMBLY) ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE OIL PRESSURE CONTROL SOLENOID VALVE EXHAUST CMP 1 EXHAUST CMP 1 VOLT REF EXHAUST CMP LOW REF 1 EXHAUST GAS RECIRCULATION VALVE 2 FRP SOL VLV CTRL FRP SOL VLV LOW REF FUEL HEATER CTRL FUEL INJECTOR 3 FUEL INJECTOR 4 FUEL PRESSURE REGULATOR 2 GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/YEL WIRE HEATER CORE INLET TEMP SIG HIGH PRESSURE EXHAUST GAS RECIRCULATION TEMPERATURE SENSOR 1 INTAKE MANIFOLD AIR TEMP SENS SIG 2 OIL PMP MTR CTRL REDUCTANT INJECTOR SOUND SYSTEMS STARTING/CHARGING SYSTEM THROTTLE POSITION SENS 1 SIG VIO WIRE VIO/BLK WIRE VIO/BLU WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN 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

"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

"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