Cadillac CT4-V I (2019-2024) (right forward of battery) Wiring diagrams

ABS IND. AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRAKE APPLY SENSOR LOW REF BRAKE APPLY SENSOR SIGNAL BRAKE APPLY SENSOR VOLTAGE REF BRAKE IND BRAKE PEDAL POSITION SENSOR BRAKE POSITION SENSOR SIGNAL BRN/BLU WIRE CENTER CONSOLE MULTI-FUNCTION SWITCH COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRIC PARK BRAKE IND ENGINE CONTROL MODULE (UNDERHOOD UNDER FUSE BLOCK) ENGINE CONTROL MODULE LIN BUS 1 ENGINE CONTROL MODULE LIN BUS 2 ENGINE CONTROL SENSORS 5 VOLT REFERENCE 1 ENGINE CONTROL VEHICLE SENSORS LOW REFERENCE 1 ENGINE CONTROLS SYSTEM GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT DISC BRAKE PAD WEAR SENSOR LOGIC NCA WIRE PARK BRAKE IND PARKING BRAKE CONTROL SWITCH RED/VIO WIRE RIGHT REAR DISC BRAKE PAD WEAR SENSOR TRACTION CONTROL SWITCH TRACTION CONTROL SWITCH SIGNAL 1 VIO/BLK WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WHT/GRN WIRE

8 SPEED AUTOMATIC TRANSMISSION ASSEMBLY AUTOSAR CAN BUS (+) 2 SERIAL DATA BACKUP LAMP BACKUP LAMP CONTROL BACKUP LAMP CONTROL 2 BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/WHT WIRE BLU/YEL WIRE CAN BUS (-) 2 SERIAL DATA CAN BUS (+) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM GRN/WHT WIRE GRN/YEL WIRE GROUND 22 HOT AT ALL TIMES INSIDE REAR VIEW MIRROR LEFT TAIL LAMP ASSEMBLY LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH) LOGIC NCA WIRE RADIO RED/WHT WIRE RIGHT TAIL LAMP ASSEMBLY SECONDARY FUSED BATTERY POSITIVE VOLTAGE 27 TRANSMISSION CONTROL MODULE (UNDERHOOD FRONT RIGHT OF FUSE BLOCK) TRANSMISSION INTERNAL MODE SW CONTROL X TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION INTERNAL MODE SWITCH Y LOW REF 1 5 VOLT REF 1 UNDERHOOD FUSE BLOCK WHT WIRE WHT/RED WIRE

AUTOSAR SERIAL DATA CAN BUS (-) 4 BATTERY POSITIVE VOLTAGE BLK WIRE BLU/VIO WIRE BODY CONTROL MODULE LIN BUS 3 COMPUTER DATA LINES SYSTEM DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR GRN/YEL WIRE GROUND GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT SIDE OBJECT DETECTION LED CONTROL LEFT SIDE OBSTACLE DETECTION CONTROL MODULE (LEFT SIDE OF REAR FASCIA) NCA WIRE PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR PRIVATE SERIAL DATA SIDE OBSTACLE DETECTION CAN BUS (-) SERIAL DATA REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RIGHT SIDE OBJECT DETECTION LED CONTROL RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE (RIGHT SIDE OF REAR FASCIA) WHT WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT SHORT RANGE RADAR SENSOR LEFT REAR SIDE SHORT RANGE RADAR SENSOR LOGIC LONG RANGE FORWARD RANGE RADAR SENSOR RED/YEL WIRE RIGHT FRONT SHORT RANGE RADAR SENSOR RIGHT REAR SIDE SHORT RANGE RADAR SENSOR WHT/GRY WIRE

BATTERY FUSE BLOCK BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN/VIO WIRE CAN BUS (+) 5 SERIAL DATA COMPUTER DATA LINES SYSTEM DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR GRN/YEL WIRE HEATER CTRL HOT AT ALL TIMES HTR CTRL HVAC CONTROLS LEFT REAR WINDOW DEFOGGER NOISE FILTER LIN BUS 3 LOGIC PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS REAR BODY WIRING HARNESS JUNCTION BLOCK REAR DEFOG RLY CTRL REAR DEFOGGER IND REAR DEFOGGER RELAY REAR DEFOGGER SWITCH REAR WINDOW DEFOGGER GRID RED/BLU WIRE RIGHT RADIO ANTENNA COIL WHT WIRE

AUTOSAR CAN BUS SERIAL DATA 1 - BATTERY POSITIVE VOLT BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE BUS 7 (-) COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ETHERNET GRN/GRY WIRE GRN/VIO WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT ELECTRONIC SUSPENSION WHEEL VERTICAL ACCELEROMETER LEFT FRONT SUSPENSION STRUT ACTUATOR LEFT REAR ELECTRONIC SUSPENSION VERTICAL ACCELEROMETER LEFT REAR SUSPENSION STRUT ACTUATOR LF SHOCK ABSORBER ACTR CTRL LF VERT SUSP ACCELERATION SENS LOW REF LF VERT SUSP ACCELERATION SENS SIG LF VERT SUSP ACCELERATION SENS VOLT REF LOGIC LR SHOCK ABSORBER ACTR CTRL LR VERT SUSP ACCELERATION SENS LOW REF LR VERT SUSP ACCELERATION SENS SENS SIG LR VERT SUSP ACCELERATION SENS VOLT REF NCA WIRE REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RF SHOCK ABSORBER ACTR CTRL RF VERT SUSP ACCELERATION SENS LOW REF RF VERT SUSP ACCELERATION SENS SIG RF VERT SUSP ACCELERATION SENS VOLT REF RIGHT FRONT ELECTRONIC SUSPENSION WHEEL VERTICAL ACCELEROMETER RIGHT FRONT SUSPENSION STRUT ACTUATOR RIGHT REAR ELECTRONIC SUSPENSION VERTICAL ACCELEROMETER RIGHT REAR SUSPENSION STRUT ACTUATOR RR SHOCK ABSORBER ACTR CTRL RR VERT SUSP ACCELERATION SENS LOW REF RR VERT SUSP ACCELERATION SENS VOLT REF SIG GND SUSPENSION CONTROL MODULE VIO/RED WIRE W/ WINDSHIELD HEADUP DISPLAY W/O WINDSHIELD HEADUP DISPLAY WHT WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/RED WIRE

APPROACH LAMP CONTROL BACKUP LAMP BACKUP LAMP CONTROL BACKUP LAMP CONTROL 2 BACKUP LAMPS CIRCUIT BLK WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/GRY WIRE BRN/YEL WIRE CENTER HIGH MOUNTED STOP LAMP CENTER HIGH MOUNTED STOP LAMP SUPPLY VOLTAGE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR- VIEW MIRROR ETHERNET BUS 7 (-) GND 13 GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT REAR PARK LAMP LEFT REAR PARK LAMP CONTROL RR TURN SIGNAL LAMP CONTROL 2 LEFT STOP/ TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TURN IND LEFT TURN SIGNAL LAMP CONTROL 2 LEFT TURN SIGNAL REPEATER LAMP LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH) LOGIC LR TURN SIGNAL LAMP CONTROL 2 NCA WIRE PARK LAMPS IND PASSENGER OUTSIDE REAR VIEW MIRROR REAR LICENSE PLATE LAMP REAR LICENSE PLATE LAMP CONTROL REAR TURN SIGNAL LAMP FEEDBACK SIG RIGHT REAR PARK LAMP RIGHT REAR PARK LAMP CONTROL RIGHT STOP/ TURN SIGNAL LAMP RIGHT TAIL LAMP ASSEMBLY RIGHT TURN IND RIGHT TURN SIGNAL LAMP CONTROL 2 RIGHT TURN SIGNAL REPEATER LAMP RR TURN SIGNAL LAMP FEEDBACK SIGNAL RUN/CRANK IGNITION 1 VOLTAGE 21 RUN/CRANK IGNITION 1 VOLTAGE 5 VIO/BLK WIRE VIO/GRY WIRE W/ HEAD-UP DISPLAY WINDSHIELD W/O HEAD-UP DISPLAY WINDSHIELD WHT/BLK WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WINDSHIELD WIPER SWITCH HIGH SIGNAL WIPER/WASHER SYSTEM YEL/BLU 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

ACTUATOR RLY CTRL BUS (-) SERIAL DATA BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BUS (+) 3 SERIAL DATA BUS (-) 2 SERIAL DATA BUS (-) SERIAL DATA CAN BUS (-) 3 SER DATA COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (UNDER FUSE BLOCK UNDERHOOD) GRN/BLK WIRE GRN/YEL WIRE GROUND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW MODE VLT IGN MODE SW SIG 2 IGNITION MODE SWITCH INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK MULTI-FUNCTION POWER SUPPLY CONVERTER PASSIVE START SW 2 LOW REF POWER DISTRIBUTION SYSTEM REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT 4 STARTER PINION SENS 5 VOLT REF 1 SERIAL DATA GATEWAY MODULE (LEFT SIDE OF DASH) STARTER ENABLE RLY CTRL TRENS INTERNAL MODE SW MODE CTRL Y VEHICLE SENS LOW REF 1 VIO/GRN WIRE WHT WIRE WHT/RED WIRE YEL/BLK WIRE YEL/VIO WIRE

AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK WIRE BLK/WHT WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SENSOR BRAKE FLUID LEVEL SWITCH SIGNAL BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE BRAKE WARNING IND BRN/BLU WIRE COMPUTER DATA LINES SYSTEM DOOR AJAR IND DRIVER INFORMATION CENTER DISPLAY FRONT BRAKE PAD WEAR SENSOR SIGNAL GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DISC BRAKE PAD WEAR SENSOR LIN BUS 1 LOGIC NCA WIRE PARK BRAKE IND PARK BRAKE SWITCH PARKING BRAKE CONTROL SWITCH REAR BRAKE PAD WEAR SENSOR SIGNAL RED/VIO WIRE RIGHT REAR DISC BRAKE PAD WEAR SENSOR SEAT BELT IND TIRE PRESSURE IND WHT WIRE