Cadillac CT4-V I (2019-2024) lighting control module Wiring diagrams

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE CAN BUS (+) 3 SERIAL DATA CAN BUS (-) 5 CAN BUS (-) SERIAL DATA ETHERNET BUS 2 (-) ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) GEAR SHIFT CONTROL MODULE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE IMAGE PROCESSING MODULE INFOTAINMENT CAN BUS LIGHTING CONTROL MODULE PARKING ASSIST CONTROL MODULE PASSENGER RESTRAINTS OCCUPANT CLASSIFICATION SYSTEM MODULE RADIO SERIAL DATA SERIAL DATA CAN BUS (-) 5 TRANSFER CASE CONTROL MODULE VEHICLE DYNAMIC SENSOR VIDEO PROCESSING MODULE W/ AUTO TRANSMISSION W/ FRONT, REAR PARK ASSIST W/ INTEGRATED BRAKE ASSIST W/ LANE ACTIVE SAFETY W/O AUTO TRANSMISSION W/O FRONT, REAR PARK ASSIST W/O INTEGRATED BRAKE ASSIST W/O LANE ACTIVE SAFETY WHT WIRE WHT/BLK WIRE WHT/YEL WIRE WIRELESS ACCESSORY CHARGING MODULE

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

AUTOMATED DRIVING MAPPING MODULE BLK WIRE CENTER HIGH MOUNTED STOP LAMP FRONT SEAT HEATER VENT CONTROL MODULE IMAGE PROCESSING MODULE LIGHTING CONTROL MODULE LOGIC MULTI-FUNCTION CARRIER LICENSE PLATE LAMP NCA WIRE PARKING ASSIST CONTROL MODULE PASSENGER DOOR LATCH ASSEMBLY PASSENGER DOOR LOCK SWITCH PASSENGER FRONT SEAT BACK VENTILATION BLOWER PASSENGER FRONT SEAT BLADDER CONTROL MODULE PASSENGER FRONT SEAT BOLSTER MEMORY MODULE PASSENGER FRONT SEAT CUSHION VENTILATION BLOWER PASSENGER FRONT SEAT LUMBAR SWITCH PASSENGER FRONT SIDE DOOR LATCH PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SEAT ADJUSTER MEMORY MODULE PASSENGER SEAT ADJUSTER SWITCH PASSENGER TRIM PANEL FRONT SIDE DOOR LIGHT CONDUCTOR LAMP REAR COMPARTMENT COURTESY LAMP REAR COMPARTMENT LID LATCH REMOTE FUNCTION ACTUATOR MODULE RIGHT FRONT SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP RIGHT REAR BODY STRUCTURE STOP LAMP RIGHT REAR DOOR LATCH RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR FLOOR COURTESY LAMP RIGHT REAR SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP RIGHT REAR SIDE DOOR LATCH RIGHT REAR SIDE DOOR WINDOW SWITCH RIGHT TAIL LAMP ASSEMBLY RIGHT TRIM PANEL REAR SIDE DOOR LIGHT CONDUCTOR LAMP RIGHT TURN SIGNAL REPEATER LAMP VIDEO PROCESSING MODULE W/ DELUXE INTERIOR LAMP PACKAGE W/ FRONT HEATED SEATS W/ HANDS FREE LANE ACTIVE SAFETY W/ POWER BOLSTER PASSENGER SEAT W/ POWER BOLSTER SEAT PASSENGER W/O POWER BOLSTER SEAT PASSENGER W/O HANDS FREE LANE ACTIVE SAFETY WHT WIRE

BATT 27 BATT 28 BATT 29 BATT 55 BATT 56 BATT 57 BLK WIRE BLK/WHT WIRE BLU/BRN WIRE BLU/YEL WIRE CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN WIRE GROUND 22 GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT HEADLAMP LEFT HEADLAMP CONTROL MODULE LEFT HIGH BEAM HEADLAMP LEFT LOW BEAM HEADLAMP LEFT PARK DAYTIME RUNNING LAMP LH FRT DRL CTRL LH FRT LAMP ASSEMBLY CTRL LH HDLP HI BEAM CTRL LH HDLP LOW BEAM CTRL LIGHTING CONTROL MODULE LOGIC NCA WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RH FRT DRL CTRL RH FRT LAMP ASSEMBLY CTRL RH HDLP HI BEAM CTRL RH HDLP LOW BEAM CTRL RIGHT FRONT HEADLAMP RIGHT HEADLAMP CONTROL MODULE RIGHT HIGH BEAM HEADLAMP RIGHT LOW BEAM HEADLAMP RIGHT PARK DAYTIME RUNNING LAMP WHT WIRE YEL WIRE

5-VOLT REF 1 AIR TEMPERATURE SENS SIG AUTOSAR CAN CAN BUS (-) 2 SER DATA AMBIENT AIR TEMPERATURE SENSOR AUTOSAR CAN CAN BUS (+) 2 SER DATA GND BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRY WIRE CAN BUS (+) 2 CAN BUS (-) 2 LIFTGATE AJAR SWITCH SIGNAL 1 COMPUTER DATA LINES SYSTEM DRIVER FRONT SIDE DOOR WINDOW SWITCH ENGINE CONTROL MODULE (UNDER UNDERHOOD FUSE BLOCK) ENGINE CONTROLS SYSTEM ENGINE OIL PRESSURE SENSOR ENGINE OIL TEMPERATURE SENSOR GRN/YEL WIRE HOT AT ALL TIMES IGN 1 VOLT 4 INSTRUMENT PANEL FUSE BLOCK INTERIOR REAR COMPARTMENT LID RELEASE SWITCH LIFTGATE WINDOW/REAR COMPT LID UNLATCH SIGNAL LIGHTING CONTROL MODULE LIN BUS 3 LOGIC MULTI-FUNCTION CARRIER LICENSE PLATE LAMP OIL PRESS SENS SIG OIL TEMP SENS SIG PARKING BRAKE CONTROL SWITCH PARKING BRAKE SWITCH RED/VIO WIRE SENS LOW REF (2) SENS LOW REF (3) VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE WHT WIRE YEL/BLU WIRE YEL/BRN WIRE

BATTERY BATTERY MONITOR MODULE BLK WIRE BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE BRAKE SYSTEM CONTROL MODULE BRAKE MASTER CYLINDER COMPUTER DATA LINES SYSTEM ENGINE COOLANT PUMP ENGINE COOLING FAN MOTOR GENERATOR GRN/YEL WIRE JUMP START BATTERY POSITIVE CABLE TERMINAL POST LEFT ENGINE MOUNT ACTUATOR LEFT FRONT SHORT RANGE RADAR SENSOR LIGHTING CONTROL MODULE LOGIC LONG RANGE FORWARD RANGE RADAR SENSOR NCA WIRE POWER STEERING CONTROL MODULE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT ENGINE MOUNT ACTUATOR RIGHT FRONT SHORT RANGE RADAR SENSOR STARTER TO INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK (DIAGRAM 4 OF 8) TO INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK (DIAGRAM 5 OF 8) TO MULTI-FUNCTION POWER SUPPLY CONVERTER (DIAGRAM 6 OF 8) TO REAR BODY WIRING HARNESS JUNCTION BLOCK (DIAGRAM 7 OF 8) TO REAR BODY WIRING HARNESS JUNCTION BLOCK (DIAGRAM 8 OF 8) TRANSMISSION CONTROL MODULE

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

2 WAY 4-WAY AUDIO AMPLIFIER DRIVER FRONT SEAT ADJUSTER SWITCH DRIVER FRONT SEAT BLADDER CONTROL MODULE DRIVER FRONT SEAT BOLSTER MEMORY MODULE DRIVER FRONT SEAT LUMBAR SUPPORT SWITCH DRIVER SEAT ADJUSTER MEMORY MODULE EVAPORATIVE EMISSION CANISTER VENT SOLENOID VALVE FROM BATTERY DISTRIBUTION FUSE BLOCK (DIAGRAM 1 OF 8) LEFT SIDE OBSTACLE DETECTION CONTROL MODULE LIGHTING CONTROL MODULE PARKING ASSIST CONTROL MODULE PASSENGER FRONT SEAT ADJUSTER SWITCH PASSENGER FRONT SEAT BLADDER CONTROL MODULE PASSENGER FRONT SEAT LUMBAR SWITCH PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR PASSENGER SEAT ADJUSTER MEMORY MODULE PASSENGER SEAT BOLSTER MEMORY MODULE REAR BODY WIRING HARNESS JUNCTION BLOCK RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR SIDE DOOR WINDOW SWITCH RIGHT SIDE OBSTACLE DETECTION CONTROL MODULE SERIAL DATA GATEWAY MODULE TELEMATIC CONTROL MODULE TO MULTI-FUNCTION POWER SUPPLY CONVERTER (DIAGRAM 6 OF 8) TRANSFER CASE CONTROL MODULE VIDEO PROCESSING MODULE VIO WIRE W/ MEMORY W/ OBSTACLE DETECTION ENHANCED SIDE ACTIVE SAFETY W/ SEAT LUMBAR PASSENGER W/O MEMORY

AUTOSAR CAN BUS (+) 2 SERIAL DATA BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN WIRE BRN/GRY WIRE CAN BUS (+) 2 CAN BUS (-) 2 LIFTGATE AJAR SWITCH SIGNAL 1 COMPUTER DATA LINES SYSTEM DISPLAY DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH GRN/BLK WIRE GRN/YEL WIRE GROUND HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK INTERIOR REAR COMPARTMENT LID RELEASE SWITCH LIFTGATE WINDOW/REAR COMPT LID UNLATCH SIGNAL LIGHTING CONTROL MODULE LIN BUS 2 LIN BUS 3 LOGIC MULTI-FUNCTION CARRIER REAR LICENSE PLATE LAMP REAR CLOSURE HANDLE SWITCH OPEN SIGNAL REAR CLOSURE UNLATCH ACTUATOR UNLATCH CONTROL REAR COMPARTMENT LID LATCH RED WIRE RED/BRN WIRE VIO/BLU WIRE VIO/GRY WIRE W/ WINDSHIELD HEAD-UP DISPLAY W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE YEL/BLU WIRE

BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN/GRN WIRE BRN/GRY WIRE CAN BUS (+) 2 COMPUTER DATA LINES SYSTEM DELAY SWITCH DRIVER INFORMATION CENTER DISPLAY GRY WIRE GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE INT LOW OFF INT LOW OFF HIGH LIGHTING CONTROL MODULE LOGIC LOW IND CTRL MIST MIST HIGH MTR PARK SW SIG RED/BRN WIRE SER DATA BUS 5 SERIAL DATA 2 UNDERHOOD FUSE BLOCK VIO WIRE WASHER RLY CTRL WASHER SW SIG WASHER SWITCH WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WASHER SOLVENT CONTAINER LEVEL SENSOR WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MOTOR RELAY WINDSHIELD WIPER MOTOR SPEED CONTROL RELAY WINDSHIELD WIPER MTR RLY COIL CTRL SW HI SIG WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER/WASHER SWITCH WIPER SW LOW REF WIPER SW LOW SIG WIPER SWITCH YEL/BLU WIRE YEL/BRN WIRE