Cadillac CT6 I facelift (2018-2023) Automatic a/c circuit

4.2L TURBO AIR QUALITY SENS SIG AUX TEMP CONT AUXILIARY AIR TEMP SENS SIG BATT POS VOLT BLK WIRE BLK/YEL WIRE BLOWER MOTOR SPEED CTRL BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/YEL WIRE CENTER DUCT CONSOLE AUXILIARY AIR TEMPERATURE SENSOR COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM ELEC VARIABLE DISPLACEMENT CTRL ELEC VARIABLE DISPLACEMENT SPLY GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GROUND GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE (LOWER RIGHT END OF DASH) INSIDE AIR TEMP SENS SIG INSTRUMENT PANEL FUSE BLOCK LEFT DUCT LOWER AUXILIARY AIR TEMPERATURE SENSOR LEFT DUCT UPPER AUXILIARY AIR TEMPERATURE SENSOR LEFT UNDERHOOD FUSE BLOCK LOW SPEED GMLAN SERIAL DATA LOWER DUCT AIR TEMP SENS SIG REAR BLOWER MOTOR SPEED CTRL REAR DEFOG RLY CTRL RED/BLU WIRE RED/VIO WIRE RIGHT DUCT LOWER AUXILIARY AIR TEMPERATURE SENSOR RIGHT DUCT UPPER AUXILIARY AIR TEMPERATURE SENSOR RUN/CRANK IGNITION 1 VOLTAGE SENS LOW REF SERIAL DATA BUS 19 SERIAL DATA BUS 9 SOLAR SENS DRIVER SIG SOLAR SENS LOW REF UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE YEL WIRE

AIR QUALITY SENSOR AMBIENT LIGHT/SUNLOAD SENSOR (W/ STOP/START SYSTEM) (TOP CENTER OF DASH) AUTO AUXILIARY BLOWER MOTOR AUXILIARY BLOWER MOTOR CONTROL MODULE BATT POS BLK WIRE BLOWER MOTOR BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DISPLAY DOOR LOCKS, ANTI-THEFT SYSTEMS FAN DOWN FAN UP GRN WIRE GRN/BLK WIRE GRN/YEL WIRE GROUND GRY WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROLS IGN LOGIC LOW REF MOTOR CTRL OFF PASSENGER RADIO/ HVAC CONTROLS REAR BODY FUSE BLOCK REAR WINDOW DEFOGGER IND RED/BLU WIRE RED/VIO WIRE SENS SIG SPEED CTRL SWITCH TEMPERATURE VIO WIRE VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE VOLT WHT WIRE

A/C COMPRESSOR (LOWER LEFT SIDE OF ENGINE) A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE AMBIENT AIR TEMPERATURE SENSOR AUTO AUXILIARY MODE DOOR ACTUATOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/GRN WIRE BRN/VIO WIRE BUS SIG COMPUTER DATA LINES SYSTEM DATA DATA BUS - DISPLAY ENGINE CONTROLS SYSTEM FAN DOWN FAN UP GRN WIRE GRN/BLU WIRE GRN/YEL WIRE LEFT OUTLET LEFT REAR LEFT UPPER AUXILIARY AIR TEMPERATURE DOOR ACTUATOR LOGIC POWER RED/BLU WIRE RIGHT CENTER CONSOLE AUXILIARY AIR TEMPERATURE DOOR ACTUATOR RIGHT OUTLET RIGHT REAR RIGHT UPPER AUXILIARY AIR TEMPERATURE DOOR ACTUATOR SERIAL SIG SPLY SWITCH TEMPERATURE VOLT

3.6L 4.2L TURBO A/C COMPRESSOR CLUTCH RELAY AIR IONIZER AIR IONIZER ELECTRODE AUX TEMP CONT AUXILIARY HEATER COOLANT PUMP RELAY BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE BUS SIG CENTER CONSOLE AUXILIARY AIR TEMPERATURE DOOR ACTUATOR COMPUTER DATA LINES SYSTEM GRID - GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEATER COOLANT PUMP HOT AT ALL TIMES LEFT CENTER CONSOLE AUXILIARY AIR TEMPERATURE DOOR ACTUATOR REAR AIR FLOW CONTROL CUT-OFF ACTUATOR RIGHT AIR TEMPERATURE DOOR ACTUATOR RIGHT DUCT LOWER AIR TEMPERATURE SENSOR RIGHT DUCT UPPER AIR TEMPERATURE SENSOR RIGHT MODE DOOR ACTUATOR RIGHT UNDERHOOD FUSE BLOCK SERIAL DATA UNDERHOOD FUSE BLOCK VIO/GRY WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

A/C EVAPORATOR TEMPERATURE SENSOR AIR INLET DR STEPPER MTR CTRL 1 AIR INLET DR STEPPER MTR CTRL 2 AIR INLET DR STEPPER MTR CTRL 3 AIR INLET DR STEPPER MTR CTRL 4 AIR RECIRCULATION DOOR ACTUATOR AIR TEMP DR CTRL LOW REF BLK/GRN WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE EVAP CORE TEMP SENS SIG GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HVAC CONTROL MODULE (LOWER RIGHT END OF DASH) HVAC MOTOR CTRL LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT DUCT LOWER AIR TEMPERATURE SENSOR LEFT DUCT UPPER AIR TEMPERATURE SENSOR LEFT MODE DOOR ACTUATOR LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG MODE DR STEPPER MTR CTRL 1 MODE DR STEPPER MTR CTRL 2 MODE DR STEPPER MTR CTRL 3 MODE DR STEPPER MTR CTRL 4 TEMP DR STEPPER MTR CTRL 1 TEMP DR STEPPER MTR CTRL 2 TEMP DR STEPPER MTR CTRL 3 TEMP DR STEPPER MTR CTRL 4 UPPER LEFT AIR TEMP SENS SIG UPPER MODE VALVE MOTOR CTRL UPPER RIGHT AIR TEMP SENS SIG VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

3.6L 4.2L TURBO A/C COMPRESSOR CLUTCH RLY CTRL AUXILIARY UNDERHOOD FUSE BLOCK BLK WIRE BLK/GRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BRN WIRE CHARGE AIR COOLER COOLANT PUMP (4.2L TURBO) (FRONT CENTER OF ENGINE COMPT) COMPUTER DATA LINES SYSTEM COOLING FAN CTRL SIG COOLING FAN MOTOR (BEHIND RADIATOR) ENG CTRL SENS LW REF (1) ENG COOLANT TEMP SENS SIG ENG CTRL VEH SENS LW REF (3) ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR GRN/BRN WIRE GRY/BLK WIRE HEATER LOOP AUXILIARY PUMP RLY CTRL HIGH SPD GMLAN SER DATA (-) 1 HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED LOCAL INTERCONNECT NETWORK BUS 32 LOGIC OUTSIDE AMBIENT AIR TEMP SENS SIG RED/YEL WIRE RIGHT UNDERHOOD FUSE BLOCK SIG GND VIO WIRE VIO/BLU WIRE WHT WIRE WHT/GRY WIRE