Cadillac CT4-V I (2019-2024) blu/yel Wiring diagrams

A/C COMPRESSOR CLUTCH RELAY A/C EVAPORATOR AIR TEMPERATURE SENSOR AIR TEMP SENS SIG ANTI-THEFT SYSTEM AUXILIARY UNDERHOOD FUSE BLOCK BATT POS VOLT 22 BATTERY FUSE BLOCK BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLOWER MOTOR (RIGHT SIDE OF HVAC MODULE) BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BLWR MTR SPD CTRL BLWR SPD FEEDBACK SIG BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER SOLAR SENS SIG GND 14 GRN/BLU WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HVAC REM ENABLE SIG HVAC SYS ENABLE SIG INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LH AIR TEMP SENS SIG LH UPPER TEMP SENS SIG LIN BUS 5 LIN BUS 6 LOGIC NCA WIRE NOT USED RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/YEL WIRE RH UPPER TEMP SENS SIG SENS LO REFE SOL VLV CTRL SUNLOAD TEMPERATURE, AMBIENT LIGHT, SECURITY INDICATOR SENSOR TEMP SENS SIG UNDERHOOD FUSE BLOCK VIO/BLU WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/YEL WIRE

A/C COMPRESSOR (LOWER LEFT FRONT OF ENGINE) A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE A/C IND A/C SWITCH AMBIENT AIR TEMPERATURE SENSOR AUTO IND AUTO SWITCH BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DATA DEFROST SWITCH DEFROST, LOWER AIR OUTLET SWITCH DEFROST, OUTLET LOWER IND DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROLS SYSTEM FAN DOWN SWITCH FAN UP SWITCH GRN/VIO WIRE GRY/GRN WIRE HVAC CONTROLS INSTRUMENT CLUSTER LEFT TEMPERATURE DOWN SWITCH LEFT TEMPERATURE UP SWITCH LOGIC LOWER AIR OUTLET IND LOWER AIR OUTLET SWITCH MOST SERIAL NCA WIRE ON/OFF IND RECIRCULATION IND RECIRCULATION SWITCH RED/BLU WIRE RIGHT TEMPERATURE DOWN SWITCH RIGHT TEMPERATURE UP SWITCH SYNC IND SYNC SWITCH UPPER AIR OUTLET IND UPPER AIR OUTLET SWITCH UPPER, LOWER AIR OUTLET IND UPPER, LOWER AIR OUTLET SWITCH VIO/BLU WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT/GRY WIRE WHT/YEL WIRE

2.0L 5-VOLT REF 1 ACTR CTRL CLS ACTR CTRL OPN BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK 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 BLU/YEL WIRE CLTH RLY CTRL COMPUTER DATA LINES SYSTEM COOLANT TEMP SIG ENGINE CONTROL MODULE (UPPER RIGHT SIDE OF DASH) ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT PUMP ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE COOLANT TEMPERATURE SENSOR 6 ENGINE COOLING FAN MOTOR GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND 61 GRY/VIO WIRE HOT AT ALL TIMES IGN 1 VOLT 4 INSIDE AIR MOISTURE, WINDSHIELD TEMPERATURE SENSOR LIN BUS 1 LOGIC NCA WIRE PASSENGER COMPARTMENT AIR FILTER MODULE PRESS SENS SIG RED/GRN WIRE RED/VIO WIRE RED/YEL WIRE SENS 2 SIG SENS LO REF 1 SENS LO REF 2 TEMP SENS SIG TEMP SIG VIO WIRE VIO/GRN WIRE VIO/GRY WIRE VLV POS SIG VOLT 8 W/ INTR, AIR CLEANER, IONIZING EQUIPMENT W/O WIPER SYSTEM WINDSHIELD WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

ACCENT LIGHTING CTRL BATT POS VOLT 21 BATT POS VOLT 22 FOOTWELL ACCENT LIGHTING CTRL ACCENT LIGHTING CTRL BATT POS VOLT 40 BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN/WHT WIRE CAN BUS (-) 2 SER DATA COMPUTER DATA LINES SYSTEM COURTESY LAMP CTRL DOME/READING LAMP CTRL DOME/READING LAMP ENABLE SIG DRIVER INFORMATION CENTER DISPLAY FRONT FLOOR CONSOLE COMPARTMENT LAMP GND 14 GRN/GRY WIRE GRN/VIO WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES ILLUMINATION IND INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL LIGHT CONDUCTOR LAMP LEFT REAR FLOOR COURTESY LAMP LF DOOR OPEN SWITCH SIG LOGIC LR CHILD SECURITY LOCK REAR COMPARTMENT COURTESY LAMP RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RIGHT REAR FLOOR COURTESY LAMP RR CHILD SECURITY LOCK VIO/GRN WIRE VIO/GRY WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WHT/BLK WIRE WHT/YEL WIRE YEL/BLU WIRE

AJAR SW SIG 1 BLK WIRE BLU/GRN WIRE BLU/YEL WIRE CAN BUS (+) 2 COMPUTER DATA LINES SYSTEM DOME LIGHT ON/OFF SWITCH DOOR AJAR SWITCH GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT ROOF RAIL REAR SEAT POSITION READING, COURTESY LAMP LEFT SUNSHADE LEFT SUNSHADE MIRROR LAMP LIGHTING CONTROL MODULE LIN BUS 3 LOGIC NCA WIRE PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR SWITCH PANEL CONTROL MODULE PASSENGER WINDOW MOTOR REAR COMPARTMENT LID LATCH RED/BLU WIRE RIGHT ROOF RAIL REAR SEAT POSITION READING, COURTESY LAMP RIGHT SUNSHADE RIGHT SUNSHADE MIRROR LAMP ROOF CONSOLE VIO WIRE VIO/GRY WIRE W/O MOISTURE SENSITIVE SYSTEM, GARAGE DOOR OPENER WHT WIRE

BACKLIGHT DIMMING CTRL 1 BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) CAN BUS (-) 2 SER DATA COMPUTER DATA LINES SYSTEM DIMMER SW LOW REF DIMMER SWITCH DIMMER SWITCH SIGNAL DRIVER INFORMATION CENTER DISPLAY GARAGE DOOR OPENER TRANSMITTER GND 14 HAZARD WARNING SWITCH HEAD-UP DISPLAY SWITCH HOT AT ALL TIMES ILLUMINATION IND INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LOGIC ON/OFF VEHICLE SWITCH POSITIVE VOLTAGE 40 RED/BLU WIRE RED/VIO WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE YEL WIRE YEL/GRY WIRE

BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/WHT WIRE CAN BUS (+) 5 SERIAL DATA COMPUTER DATA LINES SYSTEM DOOR LOCK DRIVER DOOR LOCK SWITCH DRIVER DOOR SWITCH PANEL CONTROL MODULE FLOOR CONSOLE COMPARTMENT ACCESSORY POWER RECEPTACLE FRONT OVERHEAD CONSOLE ASSEMBLY GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE HEATED STEERING WHEEL SWITCH IND HEATING HVAC CONTROLS IND CTRL INFO DISPLAY MODULE INFOTAINMENT CONTROL SWITCH LED CTRL LEFT FRONT LEFT STEERING WHEEL CONTROLS SWITCH LIN BUS 12 LIN BUS 3 LOGIC MULTIMEDIA RECEPTACLE PASSENGER DOOR LOCK SWITCH PASSENGER DOOR SWITCH PANEL CONTROL MODULE RADIO RIGHT FRONT RIGHT STEERING WHEEL CONTROLS SWITCH STEERING WHEEL HEATING CONTROL MODULE SWITCH TRANSMISSION RANGE SELECTOR CONTROLS VEHICLE STABILITY CONTROL SYSTEM SWITCH VIO WIRE VIO/YEL WIRE WHT WIRE YEL WIRE YEL/BLU WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA BATT POS VOLT BATTERY DISTRIBUTION ENGINE COMPT FUSE BLOCK BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HI SPEED GMLAN SER DATA (-) 2 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT PARKING BRAKE ACTUATOR LEFT PRK BRK MTR APPLY CTRL LEFT PRK BRK MTR LOW REF LOGIC PARK BRAKE IND PARKING BRAKE CONTROL SWITCH RED/BRN WIRE RED/VIO WIRE RIGHT PARKING BRAKE ACTUATOR RIGHT PRK BRK MTR APPLY CTRL RIGHT PRK BRK MTR LOW REF RUN/CRANK IGNITION 1 VOLTAGE SERVICE PARK BRAKE IND VIO/BLK WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE

AUTOMATIC TRANSMISSION (10-SPEED A/T) AUTOMATIC TRANSMISSION (8-SPEED A/T) AUTOMATIC TRANSMISSION CONTROL LEVER AUTOMATIC TRANSMISSION MANUAL SHIFT SHAFT POSITION SWITCH BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LEFT SIDE OF DASH) BRAKE PEDAL POSITION SENSOR BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK APPLY SENS SPLY VOLT BRK POS SENS SIG BRN/BLU WIRE CAN BUS (-) 2 SER DATA CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (UNDERHOOD UNDER FUSE BLOCK) ENGINE CONTROLS SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK ETHERNET BUS 7 (+) ETHERNET BUS 7 (-) GND 13 GRN WIRE GRN/YEL WIRE GRY/BLU WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOCK SHIFT POS SIG LOGIC NCA WIRE PARK POSITION SWITCH PARK SW SIG PARK SW SIG 2 PRK LOCK SOL ACT CTRL RED/BRN WIRE RED/GRY WIRE RUN/CRANK IGNITION 1 VOLTAGE 21 SENS 5 VOLT REF 1 SENS LOW REF 1 SW MODE CTRL X SWITCH MODE CTRL Y TRANS OUT SHAFT SPD TRANSMISSION CONTROL MODULE TRANSMISSION PARK VALVE POSITION SWITCH TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/WHT WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE

BATTERY POSITIVE VOLT BLK WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CTRL MOD LIN BUS 3 CAN BUS (-) 1 SERIAL DATA CAN BUS (-) 1 SERIAL DATA OFF/ACCESSORY IGN VOLT COLUMN LOCK MODULE (LOWER STEERING COLUMN) COMPUTER DATA LINES SYSTEM DRIVER FRONT SIDE DOOR LATCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR FRONT DOOR LOCK IND CTRL GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC RED/GRY WIRE SERIAL DATA (-) (1) WHT WIRE