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

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

A/C EVAPORATOR TEMPERATURE SENS SIG AIR CONDITIONING SYSTEM AIR CONDITIONING, DOOR LOCKS, ANTI-THEFT SYSTEMS AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES SYSTEM AUTOMATIC VEHICLE HOLD INDICATOR CTRL HEADLAMP SWITCH ON SIG AUTOMATIC VEHICLE HOLD SWITCH SIGNAL AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLOWER MOTOR SPEED CTRL BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BODY CONTROL MODULE LIN BUS 6 BODY CTRL MDL LIN BUS 11 BODY CTRL MODULE LIN BUS 5 BRN/BLK WIRE BRN/GRN WIRE BRN/WHT WIRE CHILD SECURITY LOCK ACTUATOR CHILD SECURITY LOCK ACTUATOR STATUS SIG RIGHT REAR CHILD SECURITY LOCK MOTOR LOCK CTRL COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE CONTROL, TRANSMISSIONS SYSTEMS CRUISE CTRL SET/COAST/ RESUME/ACCELERATE SWITCH SIG CURB VIEW ENABLE SIGNAL DISTANCE SENSING CRUISE CTRL GAP UP/DOWN SWITCH SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER MODE 1 SWITCH SIG DRIVER MODE 2 SWITCH SIGNAL DRIVER SOLAR SENS SIG ENHANCED DRIVER MODE 1 SWITCH SIG FOOTWELL ACCENT LIGHTING CTRL FRONT FOOTWELL ACCENT LIGHTING CTRL GND 14 GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE HAZARD WARNING SWITCH SIG HEADLAMP SWITCH FLASH SIG HEADLAMP SWITCH OFF SIG HEADLAMP SWITCH PARK LAMP SIG HEADLIGHTS SYSTEM HIGH BEAM SELECT SWITCH HIGH BEAM SIG HORN SWITCH SIG HORNS SYSTEM HOT AT ALL TIMES HVAC REMOTE ENABLE SIG HVAC SYSTEM ENABLE SIG IGNITION MODE SWITCH ACCESSORY LED SIG IGNITION MODE SWITCH MODE VOLTAGE IMMOBILIZER ANTENNA LOW SIG IMMOBILIZER ANTENNA SIG (+) INSIDE AIR TEMPERATURE SENS SIG INSTRUMENT PANEL ACCENT LIGHTING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LAMP SIGNAL INTERIOR PASSIVE ENTRY ANTENNA 1 HIGH SIG INTERIOR PASSIVE ENTRY ANTENNA 1 LOW SIG LEFT TURN SIG SWITCH SIG NAVIGATION SYSTEM POWER DISTRIBUTION SYSTEM REAR COMPARTMENT COURTESY LAMP CTRL REAR FOOTWELL ACCENT LIGHTING CTRL RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RETAINED ACCESSORY POWER RELAY 2 COIL CTRL RIGHT TURN SIG SWITCH SIG RUN/CRANK RELAY COIL CTRL SECONDARY FUSED BATTERY POSITIVE VOLTAGE 21 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 22 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 25 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 40 SECURITY INDICATOR CTRL SENS LOW REFERENCE SOUND SYSTEMS STARTING/CHARGING, POWER DISTRIBUTION SYSTEMS STATUS SIG LEFT REAR STEERING WHEEL RESISTOR LADDER LOW REFERENCE TAP UP/DOWN SWITCH SIG TRACTION CTRL SWITCH SIG 1 TRANSMISSIONS SYSTEM VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER SWITCH SIG WINDSHIELD WIPER SWITCH LOW REFERENCE WINDSHIELD WIPER SWITCH LOW SIG WIPER/WASHER SYSTEM YEL/BLU WIRE YEL/BRN WIRE YEL/GRN 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

AUDIO AMPLIFIER AUTOSAR CAN BUS (+) 5 SER DATA AUTOSAR CAN BUS (-) 5 SER DATA AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR CAN BUS (-) 5 SER DATA BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ETHERNET BUS (+) 6 ETHERNET BUS (-) 6 GND 15 LF SPEAKER (-) CTRL 1 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE LEFT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER LEFT RADIO FRONT SIDE DOOR SPEAKER LEFT RADIO FRONT SIDE DOOR UPPER SPEAKER LF MIDRANGE SPEAKER (+) CTRL LF SPEAKER 1 (+) CTRL LR AUDIO SIG LR SIG (-) LR SPEAKER (+) CTRL LR SPKR LR SUBWOOFER CTRL (-) MIC 1 SIG MIC 2 SIG MIC 3 SIG R/L R SURROUND SPEAKER (+) CTRL RADIO REAR SPEAKER REAR ACTIVE NOISE CANCELLATION MICROPHONE RED/YEL WIRE RF MIDRANGE SPEAKER (-) CTRL RF SPEAKER (-) CTRL 1 RF SPEAKER 1 (+) CTRL RIGHT FRONT ACTIVE NOISE CANCELLATION MICROPHONE RIGHT FRONT RADIO WINDSHIELD SIDE GARNISH MOLDING SPEAKER RIGHT RADIO FRONT SIDE DOOR SPEAKER RIGHT RADIO FRONT SIDE DOOR UPPER SPEAKER RL SURROUND SPEAKER (-) CTRL RR LOW LEVEL AUDIO SIG + RR SPEAKER (+) CTRL RR SPKR SEC FUSED BATT POS VOLT 37 VIO/BLU WIRE W/ ACTIVE NOISE CANCELLATION MICROPHONE W/O ACTIVE NOISE CANCELLATION MICROPHONE WHT WIRE WHT/BLK WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN 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

AJAR SW SIG BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BRN WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOOR LOCKS SYSTEM DOWN DOWN SIG DRV (+) DRV UP SIG EXPRESS EXPRESS SIG GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE ILL LEFT REAR SIDE DOOR WINDOW REGULATOR MOTOR LEFT REAR SIDE DOOR WINDOW SWITCH LIN SERIAL LIN SERIAL DATA BUS 4 LOGIC LR DOWN CTRL LR DR AJAR SW SIG LR UP CTRL PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR PASSENGER FRONT SIDE DOOR WINDOW SWITCH RED/GRY WIRE RED/VIO WIRE RIGHT REAR SIDE DOOR WINDOW REGULATOR MOTOR RIGHT REAR SIDE DOOR WINDOW SWITCH RR DOWN CTRL RR DR AJAR SW SIG RR UP CTRL VIO/GRY WIRE YEL/BLU WIRE

BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE CAMSHAFT POSITION ACTUATOR SOL VALVE X LO REF CHARGE IND CTRL COOLANT DIVERTER VALVE ACTUATOR CTRL CLOSE COOLANT DIVERTER VALVE ACTUATOR CTRL OPEN CRANKSHAFT POS SENS LOW REF CRANKSHAFT POS SENS VOLTAGE CRANKSHAFT POSITION SENS SIG CRANKSHAFT POSITION SENSOR DIRECT FUEL INJECTOR HIGH VOLTAGE CTRL CYLINDER 1 DIRECT FUEL INJECTOR HIGH VOLTAGE CTRL CYLINDER 2 DIRECT FUEL INJECTOR HIGH VOLTAGE CTRL CYLINDER 3 DIRECT FUEL INJECTOR HIGH VOLTAGE CTRL CYLINDER 4 DIRECT FUEL INJECTOR HIGH VOLTAGE SUPPLY CYLINDER 1 DIRECT FUEL INJECTOR HIGH VOLTAGE SUPPLY CYLINDER 2 DIRECT FUEL INJECTOR HIGH VOLTAGE SUPPLY CYLINDER 3 DIRECT FUEL INJECTOR HIGH VOLTAGE SUPPLY CYLINDER 4 DRIVELINE MOUNT ACTUATOR 2 CTRL ENGINE CONTROL MODULE (UNDERHOOD FUSE BLOCK) ENGINE CTRL SENS LO REF 1 ENGINE INLET COOLANT TEMPERATURE SIG ENGINE OIL PRESSURE CONTROL SOLENOID VALVE ENGINE OIL PUMP CTRL ENGINE OUTLET COOLANT TEMPERATURE SIG EVAP PURGE SOL VALVE CTRL EXHAUST CAMSHAFT POSITION ACTUATOR SOL VALVE 1 EXHAUST CAMSHAFT POSITION SENS 1 EXHAUST CAMSHAFT POSITION SENS LOW REF 1 EXHAUST CAMSHAFT POSITION SENSOR 1 VOLTAGE REF GENERATOR FIELD DUTY CYCLE SIG GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HIGH PRESSURE FUEL PUMP HIGH PRESSURE FUEL PUMP HI CTRL HIGH PRESSURE FUEL PUMP LO CTRL IGNITION CTRL 1 IGNITION CTRL 2 IGNITION CTRL 3 IGNITION CTRL 4 IGNITION CTRL LO REF BANK 1 INTAKE CAMSHAFT POSITION ACTUATOR SOL VALVE 1 INTAKE CAMSHAFT POSITION SENS 1 INTAKE CAMSHAFT POSITION SENS LOW REF 1 INTAKE CAMSHAFT POSITION SENSOR 1 VOLTAGE REF KNOCK SENS LOW REF 1 KNOCK SENS LOW REF 2 KNOCK SENS SIG 1 KNOCK SENS SIG 2 MANIFOLD ABSOLUTE PRESS SENS SIG MANIFOLD ABSOLUTE PRESSURE SENS LO REF OIL PUMP MOTOR CTRL POWERTRAIN MAIN RELAY FUSED SUPLY 1 PRE-THROTTLE AIR TEMPERATURE SIG STARTING/CHARGING SYSTEM THROTTLE ACTUATOR CLOSE CTRL THROTTLE ACTUATOR OPEN CTRL THROTTLE POS SENS LO REF THROTTLE POSITION SENS SENT 1 SIG TURBO BYPASS SOL VALVE CTRL BANK 1 TURBOCHARGER WASTEGATE MTR CLOSE CTRL TURBOCHARGER WASTEGATE MTR OPEN CTRL VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE

BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE EXHAUST CAMSHAFT POSITION SENSOR FUEL INJECTOR 1 FUEL INJECTOR 2 FUEL INJECTOR 3 FUEL INJECTOR 4 GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/RED WIRE GRY/WHT WIRE GRY/YEL WIRE INTAKE CAMSHAFT POSITION SENSOR KNOCK SENSOR #2 KNOCK SENSOR 1 LOGIC MANIFOLD ABSOLUTE PRESSURE, INTAKE AIR TEMPERATURE SENSOR VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/VIO WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/YEL WIRE EVAPORATIVE EMISSION CANISTER PURGE SOLENOID VALVE EXHAUST CAMSHAFT POSITION ACTUATOR SOLENOID VALVE GRN WIRE GRN/BLU WIRE GRY/BLU WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR 2 IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 NCA WIRE SPARK PLUG TURBOCHARGER BYPASS SOLENOID VALVE VIO WIRE VIO/BLU WIRE VIO/BRN WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/YEL WIRE YEL/BLU WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE BUS 1 COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENG OIL PUMP CTRL ENGINE CONTROL MODULE EVAPORATIVE EMISSION CANISTER PURGE PUMP EXHAUST CAMSHAFT POSITION ACTUATOR SOLENOID VALVE EXHAUST SENS 1 VOLT REF FIELD DUTY CYCLE SIG FUEL PUMP HIGH CTRL FUEL PUMP LOW CTRL GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/YEL WIRE HI VOLT CTRL CYLINDER 1 HI VOLT CTRL CYLINDER 3 HI VOLT SPLY CYLINDER 1 HI VOLT SPLY CYLINDER 3 IGNITION CTRL 1 IGNITION CTRL 3 INSTRUMENT CLUSTER INTAKE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE INTAKE POSI SENS 1 INTAKE SENS 1 VOLT REF KNOCK SENSOR #2 KNOCK SENSOR 1 LOGIC MAIN RLY FUSED SPLY (1) MALFUNCTION IND OIL PUMP MOTOR CTRL STARTING/ CHARGING SYSTEM THROTTLE BODY (FRONT LEFT SIDE OF ENGINE) VIO/BLK WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRY WIRE W/O WINDSHIELD HEAD-UP DISPLAY WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE YEL/WHT WIRE