Cadillac Lyriq I (2022-2024) air conditioning system Wiring diagrams

A/C EVAPORATOR TEMP SENS SIG AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM ANTI-THEFT SYSTEM AUTOMATIC VEHICLE HOLD IND CTRL AUTOMATIC VEHICLE HOLD SW SIG AUTOSAR CAN BUS (-) 9 SER DATA BATT POS VOLT BATTERY POS VOLT BCM LIN BUS 15 BCM LIN BUS 5 BCM LIN BUS 6 BCM LIN BUS 7 BLK WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLWR MTR SPD CTRL BLWR SPD FEEDBACK SIG BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE CTRL BANK 1 SW SIG CRUISE CTRL BANK 2 SW SIG DOME/READING LP ENABLE SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER MODE 1 SW SG GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HAZ WARN IND LED DIMMING SIG HAZ WARN SW SIG HDLP SW FLASH SIG HEADLIGHTS SYSTEM HI BEAM SEL SW HI BEAM SIG HORN SW SIG HORNS SYSTEM HOT AT ALL TIMES HVAC REM ENABLE SIG HVAC SYS ENABLE SIG IGN MODE SW MODE VOLT IGN MODE SW START LED SIG IMMO ANT LO SIG IMMO ANT SIG (+) INTR PASSIVE ENTRY ANT 2 LO SIG INSTRUMENT PANEL COMPT DR UNLATCH RLY CTRL INSTRUMENT PANEL LP DIMMER SW LO REF INSTRUMENT PANEL LP DIMMER SW SIG BCM LIN BUS 12 INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK INTR LP CTRL INTR PASSIVE ENTRY ANT 2 HI SIG LANE DEP WARN DISABLE SW SIG LANE DEP WARN IND CTRL LED BACKLIGHT DIMMING CTRL 1 LH CONDENSING HTR AIR TEMP SENS SIG LH TURN SIG SW SIG NAVIGATION SYSTEM OUT OF PARK SIG POWER DISTRIBUTION SYSTEM REAR CLOSURE OPEN/CLOSE SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/YEL WIRE RETAINED ACC PWR RLY 2 COIL CTRL RH CONDENSING HTR AIR TEMP SENS SIG RH TURN SIG SW SIG RIGHT END OF DASH) RR CAMERA WASH SIG RUN/CRNK RLY COIL CTRL SEATS SYSTEM SECURITY IND CTRL SENS LO REF STEERING WHEEL AIR BAG COIL STRG WHEEL RESISTOR LADDER LO REF TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIP SW LO REF WINDSHIELD WIP SW LO SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE

AIR CONDITIONING SYSTEM BATTERY CHARGER CONTROL MODULE BATTERY CHARGER FRONT ELECTRIC DRIVE TRANSMISSION MODULE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/GRY WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK NCA WIRE ORG/ WIRE ORG/BLK WIRE RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE

1.5 VOLT REF 2.5 VOLT REF A/C REFRIGERANT HIGH SIDE SENS 2 SIG A/C REFRIGERANT HIGH SIDE SENS SIG A/C REFRIGERANT LOW SIDE SENS SIG A/C REFRIGERANT TEMP SENS A SIG A/C REFRIGERANT TEMP SENS B SIG ACCELERATOR PEDAL POS LOW REF 1 ACCELERATOR PEDAL POS LOW REF 2 ACCELERATOR PEDAL POSITION SENSOR ACCESSORY PWR MODULE SUPPLY VOLT 3 AIR CONDITIONING SYSTEM BATT ENERGY CTRL BATT ENERGY CTRL MOD 5 VOLT REF B BATT ENERGY CTRL MOD LIN BUS 1 BATT ENERGY CTRL MOD LIN BUS 2 BATT ENERGY CTRL MOD LIN BUS 3 BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN BUS (-) 9 SERIAL DATA CHARGE REC TEMP SENS DC+ LOW REF CHARGE RECEPTACLE TEMP SENS L SIG CHARGING LOCK POS LOW REF CHARGING LOCK POS SIG COMPUTER DATA LINES SYSTEM COOLANT ELECTRIC HEATER CTRL GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE LOW REF (1) LOW REF 2 MOD SENS LOW REF 3 ORG/ WIRE ORG/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SIG (1) SIG (2) SIG GND TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

A/C REFRIGERANT TEMP SENS C SIG ACC PWR MOD FIELD DUTY CYCLE SIG ACCELERATOR PEDAL POS SIG 1 ACCELERATOR PEDAL POS SIG 2 ACCESSORY PWR MOD SUPPLY VOLT 4 AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS LOW REF AMBIENT AIR TEMP SENS SIG AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT ENERGY CTRL MOD 5 VOLT REF C BATT ENERGY CTRL MOD SENS LOW REF 2 BATT ENERGY CTRL MOD SENS LOW REF 4 BATT ENERGY CTRL MODULE LIN BUS 4 BATT ENERGY CTRL MODULE LIN BUS 5 BATT ENERGY CTRL MODULE LIN BUS 6 BATT RADIO FREQUENCY MOD LOW REF BATT RADIO FREQUENCY MOD SUPPLY VOLT BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE CHARGE PORT DOOR POS SENS SIG CHARGE REC TEMP SENS DC+ SIG CHARGE REC TEMP SENS L LOW REF COMPUTER DATA LINES SYSTEM FAST CHARGE DC NEGATIVE RLY CTRL FAST CHARGE DC POSITIVE RLY CTRL FAST CHRG OFFBRD CHARGING LK SIG FAST CHRG OFFBRD CHARGING UNLK SIG GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HYBRID/EV BATT (-) RLY CTRL HYBRID/EV BATT 1 (+) RLY CTRL HYBRID/EV BATTERY 2 (+) RLY CTRL HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 1 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 2 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 3 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 4 INSTRUMENT CLUSTER SYSTEM ORG/ WIRE ORG/BLK WIRE PRECHARGE RLY PROXIMITY STATUS SIG 1 RED/GRY WIRE RED/YEL WIRE RUN/CRANK IGNITION 1 VOLT SECONDARY FUSED BATT POS VOLT SPI BUS 1 (+) SERIAL DATA VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

A/C REFRIGERANT TEMP SENS D SIG A/C REFRIGERANT TEMP SENS E SIG A/C REFRIGERANT TEMP SENS F SIG A/C REFRIGERANT TEMP SENS H LOW REF A/C REFRIGERANT TEMP SENS H SIG ACC PWR MOD SET VOLT CTRL AIR CONDITIONING SYSTEM BATT ENERGY CTRL SENS LOW REF 1 BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CHARGE RECEPTACLE TEMP SENS N SIG COOLANT TEMP SENS A SIG COOLANT TEMP SENS B LOW REF COOLANT TEMP SENS B SIG COOLANT TEMP SENS C SIG COOLANT TEMP SENS D LOW REF COOLANT TEMP SENS D SIG COOLANT TEMP SENS E LOW REF COOLANT TEMP SENS E SIG CTRL PILOT SIG 1 DOOR LOCKS SYSTEM GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HIGH VOLT ONBOARD CHARGING ENABLE SIG HOOD STATUS A SIG HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY HYBRID/ELECTRIC VEHICLE BATTERY PACK HYBRID/ELECTRIC VEHICLE BATTERY PACK COMMUNICATION MODULE LOGIC LOW REF MOD SENS LOW REF 5 ORG/ WIRE ORG/BLK WIRE SERIAL DATA SIG GROUND SPI BUS 1 (+) SPI BUS 2 (-) SUPPLY VOLT VEHICLE CTRL MOD WAKE UP SIG VEHICLE INTEGRATION CTRL VIO/GRY WIRE VIO/RED WIRE WAKE UP SIG WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

AIR CONDITIONING SYSTEM BATTERY CHARGER (NEAR CENTER OF FRONT COMPT) BATTERY CHARGER CONTROL MODULE BLK WIRE BLU WIRE BLU/YEL WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DRIVE MOTOR POSITION SENSOR ENGINE WIRING HARNESS JUNCTION BLOCK GRN/VIO WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK NCA WIRE ORG/ WIRE ORG/BLK WIRE REAR ELECTRIC DRIVE TRANSMISSION MODULE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT END OF DASH) VIO/GRN WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/VIO WIRE

1.5 VOLT REF 2.5 VOLT REF A/C REFRIGERANT HIGH SIDE SENS 2 SIG A/C REFRIGERANT HIGH SIDE SENS SIG A/C REFRIGERANT LOW SIDE SENS SIG A/C REFRIGERANT TEMP SENS A SIG A/C REFRIGERANT TEMP SENS B SIG ACCELERATOR PEDAL POS LOW REF 1 ACCELERATOR PEDAL POS LOW REF 2 ACCELERATOR PEDAL POSITION SENSOR ACCESSORY PWR MODULE SUPPLY VOLT 3 AIR CONDITIONING SYSTEM BATT ENERGY CTRL BATT ENERGY CTRL MOD 5 VOLT REF B BATT ENERGY CTRL MOD LIN BUS 1 BATT ENERGY CTRL MOD LIN BUS 2 BATT ENERGY CTRL MOD LIN BUS 3 BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/GRY WIRE BRN/RED WIRE BRN/VIO WIRE BRN/YEL WIRE CAN BUS (-) 9 SERIAL DATA CHARGE REC TEMP SENS DC+ LOW REF CHARGE RECEPTACLE TEMP SENS L SIG CHARGING LOCK POS LOW REF CHARGING LOCK POS SIG COMPUTER DATA LINES SYSTEM COOLANT ELECTRIC HEATER CTRL GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HI VOLT ON-BOARD CHARGING 2 ENABLE HIGH VOLT BATT 3 (+) RELAY CTRL HIGH VOLT BATT 3 (-) RLY CTRL LOW REF (1) LOW REF 2 MOD SENS LOW REF 3 ORG/ WIRE ORG/BLK WIRE RED/BLU WIRE RED/GRY WIRE RED/YEL WIRE SIG (1) SIG (2) SIG GND TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE

A/C REFRIGERANT TEMP SENS C SIG ACC PWR MOD FIELD DUTY CYCLE SIG ACCELERATOR PEDAL POS SIG 1 ACCELERATOR PEDAL POS SIG 2 ACCESSORY PWR MOD SUPPLY VOLT 4 AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS LOW REF AMBIENT AIR TEMP SENS SIG AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT ENERGY CTRL MOD 5 VOLT REF C BATT ENERGY CTRL MOD SENS LOW REF 2 BATT ENERGY CTRL MOD SENS LOW REF 4 BATT ENERGY CTRL MODULE LIN BUS 4 BATT ENERGY CTRL MODULE LIN BUS 5 BATT ENERGY CTRL MODULE LIN BUS 6 BATT RADIO FREQUENCY MOD LOW REF BATT RADIO FREQUENCY MOD SUPPLY VOLT BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE CHARGE PORT DOOR POS SENS SIG CHARGE REC TEMP SENS DC+ SIG CHARGE REC TEMP SENS L LOW REF COMPUTER DATA LINES SYSTEM FAST CHARGE DC NEGATIVE RLY CTRL FAST CHARGE DC POSITIVE RLY CTRL FAST CHRG OFFBRD CHARGING LK SIG FAST CHRG OFFBRD CHARGING UNLK SIG GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE HYBRID/EV BATT (-) RLY CTRL HYBRID/EV BATT 1 (+) RLY CTRL HYBRID/EV BATTERY 2 (+) RLY CTRL HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 1 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 2 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 3 HYBRID/PROPULSION SYSTEM COOLANT TEMPERATURE SENSOR 4 INSTRUMENT CLUSTER SYSTEM ORG/ WIRE ORG/BLK WIRE PRECHARGE RLY PROXIMITY STATUS SIG 1 RED/GRY WIRE RED/YEL WIRE RUN/CRANK IGNITION 1 VOLT SECONDARY FUSED BATT POS VOLT SPI BUS 1 (+) SERIAL DATA SPI BUS 3 (+) SERIAL DATA VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE

A/C REFRIGERANT TEMP SENS D SIG A/C REFRIGERANT TEMP SENS E SIG A/C REFRIGERANT TEMP SENS F SIG A/C REFRIGERANT TEMP SENS H LOW REF A/C REFRIGERANT TEMP SENS H SIG ACC PWR MOD SET VOLT CTRL AIR CONDITIONING SYSTEM BATT ENERGY CTRL SENS LOW REF 1 BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/RED WIRE CHARGE RECEPTACLE TEMP SENS N SIG COOLANT TEMP SENS A SIG COOLANT TEMP SENS B LOW REF COOLANT TEMP SENS B SIG COOLANT TEMP SENS C SIG COOLANT TEMP SENS D LOW REF COOLANT TEMP SENS D SIG COOLANT TEMP SENS E LOW REF COOLANT TEMP SENS E SIG CTRL PILOT SIG 1 DOOR LOCKS SYSTEM GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HIGH VOLT ONBOARD CHARGING ENABLE SIG HOOD STATUS A SIG HYBRID/ELECTRIC VEHICLE BATTERY DISCONNECT RELAY HYBRID/ELECTRIC VEHICLE BATTERY PACK HYBRID/ELECTRIC VEHICLE BATTERY PACK COMMUNICATION MODULE LOGIC LOW REF MOD SENS LOW REF 5 ORG/ WIRE ORG/BLK WIRE SERIAL DATA SERIAL DATA SPI BUS 1 (-) SERIAL DATA SPI BUS 2 (+) SPI BUS 1 (+) SERIAL DATA SPI BUS 2 (-) SUPPLY VOLT VEHICLE CTRL MOD WAKE UP SIG VEHICLE INTEGRATION CTRL VIO/GRY WIRE VIO/RED WIRE WAKE UP SIG WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE