Cadillac CT4-V I (2019-2024) w/o windshield head-up display 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

BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GEAR SHIFT CONTROL MODULE (RIGHT SIDE OF DASH) GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES ILL INSTRUMENT CLUSTER INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIN BUS 1 LOGIC RED/WHT WIRE TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/WHT WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

2.0L 5-VOLT REF 1 ACTR CTRL CLS ACTR CTRL OPN BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMP SIG DATA DIVERTER VALVE POS SIG DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (UNDER FUSE BLOCK UNDERHOOD) ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE 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 GRN/BRN WIRE GROUND 61 GRY/VIO WIRE HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT 4 INSTRUMENT CLUSTER INSTRUMENT PANEL WIRING HARNESS FUSE BLOCK LOGIC MOST SERIAL ON UPPER SUPPORT RAIL) RADIATOR COOLANT TEMPERATURE SENSOR SENS 2 SIG SENS LO REF 1 SENS LO REF 2 TEMP SIG UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/GRN WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

AUTOSAR CAN BUS SERIAL DATA 1 - BATT+ VOLT BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GRN/BLK WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LIN BUS 1 LOGIC POWER STEERING CONTROL MODULE POWER STEERING WARNING LIGHT IND RED/GRY WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE

BLK WIRE BLOWER MOTOR BODY CONTROL MODULE CENTER CONSOLE MULTI-FUNCTION SWITCH COLUMN LOCK MODULE CRUISE CONTROL SWITCH DATA LINK CONNECTOR DIMMER SWITCH DRIVER MONITORING SYSTEM MODULE ENGINE COOLANT PUMP ENGINE COOLING FAN MOTOR FLOOR CONSOLE COMPARTMENT ACCESSORY POWER RECEPTACLE FORWARD COLLISION ALERT DISPLAY FRONT FLOOR CONSOLE ACCESSORY POWER REAR RECEPTACLE FRONT FLOOR CONSOLE COMPARTMENT LAMP FRONT HEATER, AIR CONDITIONING USER INTERFACE CONTROL GEAR SHIFT CONTROL MODULE HAZARD WARNING SWITCH HEAD-UP DISPLAY HEAD-UP DISPLAY SWITCH HEATED STEERING WHEEL MODULE HORN SWITCH IGNITION MAIN RELAY INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL COMPARTMENT LAMP INSTRUMENT PANEL LIGHT CONDUCTOR LAMP INSTRUMENT PANEL MULTI- FUNCTION SWITCH INSTRUMENT PANEL WIRING HARNESS FUSE BLOCK LEFT AUTOMATIC TRANSMISSION MANUAL SHIFT AUXILIARY POSITION SWITCH LEFT FRONT FLOOR COURTESY LAMP LEFT TRANSMISSION MANUAL SHIFT SWITCH NCA WIRE ON/OFF VEHICLE SWITCH PARKING BRAKE CONTROL SWITCH PASSENGER COMPARTMENT AIR FILTER MODULE RETAINED ACCESSORY POWER RELAY RIGHT AUTOMATIC TRANSMISSION MANUAL SHIFT AUXILIARY POSITION SWITCH RIGHT FRONT FLOOR COURTESY LAMP RIGHT TRANSMISSION MANUAL SHIFT SWITCH STEERING COLUMN TILT WHEEL, TELESCOPE CONTROL MODULE STEERING LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL RADIO CONTROL SWITCH TURN SIGNAL SWITCH VEHICLE DYNAMIC SENSOR VEHICLE STABILITY CONTROL SYSTEM SWITCH W/ AUTOMATIC STEERING WHEEL HEATER W/O INDUCTIVE PORTABLE WIRELESS DEVICE CHARGER W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WIRELESS ACCESSORY CHARGING MODULE

ABS IND. ADAPTIVE CRUISE IND ADAPTIVE FRONT LIGHTING (AFL) IND AIR BAG IND AUTO HIGH BEAM IND AUTO STOP IND AUTOSAR CAN BUS (+) 5 SER DATA AUTOSAR CAN BUS (-) 5 SER DATA BATT POSITIVE VOLT BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE SYSTEM WARNING IND BRAKE WARNING IND BRN/BLU WIRE CHARGE IND COMPUTER DATA LINES SYSTEM CRUISE IND DAY NIGHT LED CTRL DECENT CTRL IND DOOR AJAR IND DRIVER INFORMATION CENTER DISPLAY ELECTRIC STABILITY CONTROL OFF IND ELECTRIC STABILITY IND ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL PRESSURE IND ESC IND ESC OFF IND ETHERNET BUS 7 (-) FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE GRN/BLK WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HEAD-UP DISPLAY CIRCUIT HIGH BEAM ASSIST IND HIGH BEAM IND HIGH BEAM LAMP IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HUD SIG IGN 1 VOLT INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LEFT TURN IND LIGHTS ON IND LIN BUS 1 LOGIC LOW FUEL IND LVDS MALFUNCTION IND NAVIGATION SYSTEM PARK BRAKE IND PARK LAMP IND POWER STEERING WARNING LIGHT IND RED/BLU WIRE RED/BRN WIRE RIGHT TURN IND SEAT BELT IND SECURITY IND SERVICE IND SERVICE PARK BRAKE IND SPEEDOMETER TACHOMETER TIRE PRESSURE IND TOW/ HAUL IND TRACTION CRTL OFF IND VEHICLE AHEAD IND VIO/BLK WIRE VIO/GRN WIRE W/O WINDSHIELD HEAD-UP DISPLAY

2.7L TURBO AIR CONDITIONING COMPRESSOR RELAY AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP BRAKE SYSTEM CONTROL MODULE BRAKE MASTER CYLINDER CONTENT THEFT DETERRENT ALARM ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY ENGINE RESTART RELAY FROM IGNITION MAIN RELAY (DIAGRAM 2 OF 8) GEAR SHIFT CONTROL MODULE GRN/VIO WIRE HORN RELAY INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT SOUND QUALITY EXHAUST CONTROL VALVE ACTUATOR NCA WIRE NOT USED RED/BRN WIRE RED/WHT WIRE RIGHT SOUND QUALITY EXHAUST CONTROL VALVE ACTUATOR STARTER RELAY TRANSMISSION CONTROL MODULE VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE W/O WINDSHIELD HEAD-UP DISPLAY WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY

BLK WIRE BLOWER MOTOR BLU WIRE BLU/WHT WIRE BLU/YEL WIRE CARD READER RECEPTACLE COMPUTER DATA LINES SYSTEM CONTENT THEFT DETERRENT SENSOR DATA LINK CONNECTOR DRIVER MONITORING SYSTEM MODULE FROM BATTERY DISTRIBUTION FUSE BLOCK (DIAGRAM 1 OF 8) FRONT HEATER, AIR CONDITIONING USER INTERFACE CONTROL GARAGE DOOR OPENER TRANSMITTER HEAD-UP DISPLAY INFOTAINMENT CONTROL SWITCH INSTRUMENT PANEL CLUSTER MODULE MULTIMEDIA RECEPTACLE NCA WIRE PASSENGER COMPARTMENT AIR FILTER MODULE PASSENGER RESTRAINTS OCCUPANT CLASSIFICATION SYSTEM MODULE RADIO RADIO CONTROL RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RESTRAINTS CONTROL MODULE ROOF CONSOLE VEHICLE PERFORMANCE DATA RECORDER W/ INTR, AIR CLEANER, IONIZING EQUIPMENT W/ MOISTURE SENSITIVE W/O WINDSHIELD HEAD-UP DISPLAY WINDSHIELD OUTSIDE MOISTURE SENSOR WIRELESS ACCESSORY CHARGING MODULE

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

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