Cadillac CT4-V I (2019-2024) (upper rear of left kick panel) Wiring diagrams

BLK WIRE BLU/WHT WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DOOR LOCK DRIVER INFORMATION CENTER DISPLAY GRN/BLU WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/VIO WIRE IND CTRL INSTRUMENT CLUSTER LIN BUS 2 LIN BUS 3 LIN BUS 4 LOCK CTRL LOGIC OPEN SW SIG PASSENGER DOOR LOCK SWITCH PASSENGER FRONT SIDE DOOR WINDOW CONTROL SWITCH RED/BLU WIRE RED/BRN WIRE RIGHT REAR SIDE DOOR LATCH RIGHT REAR SIDE DOOR WINDOW SWITCH RR DR AJAR SECURITY IND SERIAL DATA SW SIG UNLOCK CTRL VIO WIRE VIO/WHT WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT/BLU WIRE YEL/BLU WIRE YEL/VIO 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 BLK WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DR AJAR DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE INSTRUMENT PANEL COMPARTMENT LAMP LEFT FRONT FLOOR COURTESY LAMP LEFT REAR LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR DOOR SWITCH PANEL CONTROL MODULE LEFT REAR SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP LEFT TRIM PANEL REAR SIDE DOOR LIGHT CONDUCTOR LAMP LIN BUS 4 LOGIC NCA WIRE RIGHT FRONT FLOOR COURTESY LAMP RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR DOOR SWITCH PANEL CONTROL MODULE RIGHT REAR SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP RIGHT TRIM PANEL REAR SIDE DOOR LIGHT CONDUCTOR LAMP RR DR - SW SIG VIO/GRN WIRE VIO/GRY WIRE W/ DELUXE INTERIOR LAMP PACKAGE WHT/YEL 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

BLK WIRE BLU/VIO WIRE BODY CONTROL MODULE COLUMN LOCK MODULE DRIVER FRONT SEAT BACK VENTILATION BLOWER DRIVER FRONT SEAT CUSHION VENTILATION BLOWER FORWARD COLLISION ALERT DISPLAY FROM ACCESSORY TIME DELAY CUTOFF RELAY (DIAGRAM 4 OF 8) GRN/VIO WIRE IGNITION MAIN RELAY INSIDE AIR MOISTURE, WINDSHIELD TEMPERATURE SENSOR INSIDE REAR VIEW MIRROR LIGHTING CONTROL MODULE NCA WIRE PASSENGER FRONT SEAT BACK VENTILATION BLOWER PASSENGER FRONT SEAT CUSHION VENTILATION BLOWER RESTRAINTS CONTROL MODULE SERIAL DATA GATEWAY MODULE VIO/GRN WIRE VIO/GRY WIRE W/ VENTILATED SEAT

ACCESSORY TIME DELAY CUTOFF RELAY BLK WIRE BODY CONTROL MODULE COLUMN LOCK MODULE CRUISE CONTROL SWITCH FLOOR CONSOLE COMPARTMENT ACCESSORY POWER RECEPTACLE FROM BATTERY DISTRIBUTION FUSE BLOCK (DIAGRAM 1 OF 8) FROM MULTI-FUNCTION POWER SUPPLY CONVERTER (DIAGRAM 6 OF 8) FRONT FLOOR CONSOLE ACCESSORY POWER REAR RECEPTACLE GEAR SHIFT CONTROL MODULE GRY/GRN WIRE HEATED STEERING WHEEL MODULE LOGIC NCA WIRE PARKING BRAKE CONTROL SWITCH RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE STEERING COLUMN TILT WHEEL, TELESCOPE CONTROL MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL RADIO CONTROL SWITCH TO IGNITION MAIN RELAY (DIAGRAM 2 OF 8) VIO WIRE YEL WIRE

ACC IND BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN/BLK WIRE CAN-BUS COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT ADJUSTER SWITCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR DRIVER SEAT ADJUSTER MEMORY MODULE ENGINE CONTROL MODULE ENGINE START/ STOP ENGINE WIRING HARNESS JUNCTION BLOCK FROM ENGINE WIRING HARNESS JUNCTION BLOCK (DIAGRAM 1 OF 8) FROM REAR BODY WIRING HARNESS JUNCTION BLOCK (DIAGRAM 7 OF 8) GRN/BLK WIRE IGNITION MODE SWITCH ACCESSORY LED SIGNAL IGNITION MODE SWITCH MODE VOLTAGE IGNITION MODE SWITCH START LED SIGNAL ILL LEFT REAR SIDE DOOR WINDOW SWITCH LOW REFERENCE MULTI-FUNCTION POWER SUPPLY CONVERTER ON/OFF VEHICLE SWITCH PASSENGER FRONT SEAT ADJUSTER SWITCH PASSENGER SEAT ADJUSTER MEMORY MODULE PASSIVE START SWITCH SIGNAL 2 REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE SERIAL DATA GATEWAY MODULE START IND STARTER RELAY TO INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK (DIAGRAM 4 OF 8) TRAILER IGNITION POWER RELAY VIO/GRN WIRE W/ MEMORY W/ POWER BOLSTER PASSENGER SEAT W/O MEMORY W/O POWER BOLSTER PASSENGER SEAT WHT WIRE YEL WIRE YEL/BLK WIRE

AM/FM RADIO ANTENNA AMPLIFIER BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BRN/BLK WIRE BRN/VIO WIRE BRN/WHT WIRE COAX COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH GRN/BLK WIRE GRN/GRY WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE LEFT RADIO QUARTER SPEAKER LOGIC LVDS MUTE RADIO REAR VIEW CAMERA RIGHT RADIO BODY REAR SIDE CORNER UPPER GARNISH MOLDING RIGHT RADIO REAR SIDE DOOR SPEAKER USB VIO/WHT WIRE VOICE WHT WIRE WHT/BLK WIRE YEL/BRN 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