Car Wiring Diagrams for Manual a/c circuit for GMC Terrain II (2017-2021)

A/C COMPRESSOR A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE BATT POS BATT POS VOLT BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLOWER MOTOR BLOWER MTR SPD CTRL BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR BRN/GRN WIRE BRN/PPL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 9 DEFOGGER SYSTEM DRIVER INFORMATION CENTER DISPLAY DSP HMI FUSE ELEC VARIABLE DISPLACEMENT CTRL ELEC VARIABLE DISPLACEMENT SPLY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND FUSE 3 GRN WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC BLWR FUSE HVAC CONTROL MODULE (TOP CENTER OF DASH) HVAC FUSE INSIDE AIR TEMP SENS SIG INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC LOW SPEED GMLAN SERIAL DATA LOWER RIGHT FRONT OF ENGINE) POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (W/ START/STOP SYSTEM) (LOWER CENTER OF DASH) PPL/GRN WIRE REAR DEFOG RLY CTRL RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE REGULATED CTRL RUN/CRANK IGNITION 1 VOLT SOLAR SENS DRV SIG SOLAR SENS LOW REF SPD CTRL UNDERHOOD FUSE BLOCK VAR/FUNC FUSE VOLT W/ START/STOP SYSTEM W/O START/STOP SYSTEM

A/C COMPRESSOR CLUTCH RELAY A/C FUSE A/C REFRIGERANT PRESSURE SENSOR A/C SWITCH BATTERY FUSE BLOCK BLK WIRE BLK/GRN WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/RED WIRE BUS 9 SER DATA GND DEFROST, LOWER AIR OUTLET IND DEFROST, LOWER AIR OUTLET SWITCH ECM FUSE ENGINE CONTROLS IGNITION RELAY FAN DOWN SWITCH FAN UP SWITCH FUSE 4 FUSE 6 GRN WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HVAC CONTROLS LEFT TEMPERATURE UP SWITCH START/ STOP SWITCH RIGHT TEMPERATURE DOWN SWITCH LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH MAX WINDSHIELD DEFROST IND MAX WINDSHIELD DEFROST SWITCH PPL/BLU WIRE RECIRCULATION IND RECIRCULATION SWITCH RED WIRE RED/BLU WIRE RIGHT TEMPERATURE UP SWITCH UNDERHOOD FUSE BLOCK UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH UPPER, LOWER AIR OUTLET IND UPPER, LOWER AIR OUTLET SWITCH WHT/GRY WIRE WINDSHIELD DEFROST IND WINDSHIELD DEFROST SWITCH WINDSHIELD DEFROST SWITCH LEFT TEMPERATURE DOWN SWITCH

5 VOLT REF A/C PRESS AMBIENT LIGHT/SUNLOAD SENSOR (TOP CENTER OF DASH) ANTI-THEFT SYSTEM BATT POS BATT POS VOLT BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BRN/RED WIRE CLUTCH RLY CTRL COMPUTER DATA LINES SYSTEM COOLING FAN COOLING FAN MOTOR (MOUNTED TO COOLING FAN SHROUD) CTRL RLY SIG DATA (-) (3) ENG COOLANT ENGINE CONTROLS SYSTEM FUSE SPLY 1 GMLAN SERIAL GRN WIRE GRY WIRE HEADLIGHTS SYSTEM LOGIC LOW REF 2 MAIN RLY PPL/BLU WIRE RED/BLU WIRE RED/WHT WIRE SENS LO REF SENS SIG SPD SIG TEMP SENS SIG UNDERHOOD FUSE BLOCK VOLT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRY WIRE

A/C EVAPORATOR TEMPERATURE SENSOR AIR INLET DR STEPPER MOTOR CTRL 1 AIR INLET DR STEPPER MOTOR CTRL 2 AIR INLET DR STEPPER MOTOR CTRL 3 AIR INLET DR STEPPER MOTOR CTRL 4 AIR RECIRCULATION DOOR ACTUATOR AIR TEMPERATURE DOOR ACTUATOR AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN/GRN WIRE DR CTRL LOW REF ECM FUSE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR EVAP CORE TEMP SENS SIG GRN WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE GRY/RED WIRE HOT AT ALL TIMES HVAC CONTROL MODULE (TOP CENTER OF DASH) HVAC MOTOR CTRL MODE DOOR ACTUATOR MODE DR STEPPER MOTOR CTRL 1 MODE DR STEPPER MOTOR CTRL 2 MODE DR STEPPER MOTOR CTRL 3 MODE DR STEPPER MOTOR CTRL 4 ORG/ WIRE RED/BLK WIRE RED/GRN WIRE RED/WHT WIRE TEMP DR STEPPER MOTOR CTRL 1 TEMP DR STEPPER MOTOR CTRL 2 TEMP DR STEPPER MOTOR CTRL 3 TEMP DR STEPPER MOTOR CTRL 4 UNDERHOOD FUSE BLOCK WHT/PNK WIRE WHT/RED WIRE YEL WIRE