Car Wiring Diagrams for 2.0l vin 4, automatic a/c circuit for Chevrolet Blazer III (2018-2023)

AMBIENT LIGHT/SUNLOAD SENSOR (TOP CENTER OF INSTRUMENT PANEL) BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLOWER MOTOR BLOWER SPD BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR SPD CTRL BODY CONTROL MODULE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS ELEC VARIABLE DISP CTRL ELEC VARIABLE DISP SPLY FEEDBACK SIG GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HUMIDITY SENS SIG HUMIDITY TEMP SENS SIG HVAC CONTROL MODULE (BEHIND HVAC CONTROLS) INSIDE AIR TEMP SENS SIG INSTRUMENT PANEL FUSE BLOCK LEFT OF BATTERY) LO SPD GMLAN SERIAL DATA LOGIC MTR SPD CTRL NCA WIRE REAR DEFOG RLY CTRL RED/BLU WIRE RED/VIO WIRE RUN/CRANK IGN 1 VOLT SERIAL DATA BUS 9 SOLAR SENS LO REF TEMP SENS LO REF TWILIGHT SENTINEL DELAY SIG UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE WHT WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL WIRE YEL/BLU WIRE YEL/RED WIRE YEL/VIO WIRE

A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR CLUTCH RELAY A/C COMPRESSOR SOLENOID VALVE A/C ON IND A/C ON SWITCH AUTO IND AUTO SWITCH BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/YEL WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DEFROST, LOWER AIR OUTLET IND FAN SPEED HIGH SWITCH FAN SPEED LOW SWITCH GRN WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROLS LEFT OF BATTERY) LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH NCA WIRE RECIRCULATION IND RECIRCULATION SWITCH RED/BLU WIRE START STOP IND START/STOP SWITCH SYNC IND SYNC SWITCH UNDERHOOD FUSE BLOCK UPPER AIR OUTLET IND VIO/GRY WIRE WHT/GRY WIRE WINDSHIELD DEFROST IND

AIR INLET DOOR ACTUATOR BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT OF BATTERY) LOGIC MOST SERIAL DATA (+) RED/BLK WIRE RED/GRN WIRE RIGHT AIR TEMPERATURE DOOR ACTUATOR UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRY WIRE WHT WIRE WHT/GRY WIRE WHT/PNK WIRE YEL/GRN WIRE

A/C EVAPORATOR TEMPERATURE SENSOR AIR INLET DR MTR CTRL 1 AIR INLET DR MTR CTRL 2 AIR INLET DR MTR CTRL 3 AIR INLET DR MTR CTRL 4 BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/VIO WIRE EVAP CORE TEMP SENS SIG GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE GRY/WHT WIRE HVAC CONTROL MODULE (BEHIND HVAC CONTROLS) HVAC MTR CTRL MODE DOOR ACTUATOR MODE DR MTR CTRL 1 MODE DR MTR CTRL 2 MODE DR MTR CTRL 3 MODE DR MTR CTRL 4 PASS MTR CTRL 1 PASS MTR CTRL 2 PASS MTR CTRL 3 PASS MTR CTRL 4 REAR MODE MTR CTRL RED/BLK WIRE RED/GRN WIRE RH UPR TEMP SENS SIG SENS LOW REF TEMP DR MTR CTRL 1 TEMP DR MTR CTRL 2 TEMP DR MTR CTRL 3 TEMP DR MTR CTRL 4 VIO/BLU WIRE WHT WIRE WHT/GRY WIRE WHT/PNK WIRE WHT/RED WIRE YEL WIRE YEL/GRN WIRE

A/C REFRIGERANT PRESSURE SENSOR ACTUATOR CTRL OPEN BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN/GRY WIRE CLUTCH RELAY CTRL COL DIVERTER VALVE ACTUATOR CTRL CLOSE COL DIVERTER VALVE COMPUTER DATA LINES STYSTEM ENGINE BLK TEMP WIRE ENGINE BLOCK COOLANT TEMPERATURE SIGNAL MODULE LIN BUS 1 MODULE LIN BUS 1 ENGINE CONTROL MODULE ENGINE CONTROL SEN LOW REF 1 ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE COOLANT TEMPERATURE SENSOR 6 ENGINE CTRL ENGINE CTRL VEHICLE SENSORS LOW REF 1 ENGINE INLET COL TEMPERATURE SIGNAL ENGINE OUTLET COOLANT TEMPERATURE SIGNAL GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND 3 GRY/VIO WIRE HEATER CORE OUTLET TEMPERATURE SIGNAL HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED LEFT OF BATTERY) LOWER RIGHT FRONT OF ENGINE) POSITIVE VOLTAGE 1 RED/WHT WIRE SENSOR SIGNAL TURBOCHARGER BYPASS SOLENOID VALVE UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE (BEHIND THROTTLE BODY) ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 GRN/BLK WIRE LOGIC RADIATOR COOLANT TEMPERATURE SENSOR VIO/BLU WIRE WHT/RED WIRE YEL/BLK WIRE