Cadillac CT4-V I (2019-2024) computer data lines system Wiring diagrams

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

A/C COMPRESSOR SOLENOID VALVE CTRL AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES, EXTERIOR LIGHTS SYSTEMS AUTO HIGH BEAM ASSIST SWITCH SIG AUTOSAR CAN BUS (+) 2 SERIAL DATA BLK/BRN WIRE BLK/YEL WIRE BLOWER SPEED FEEDBACK SIG BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BODY CTRL MODULE LIN BUS 12 BODY CTRL MODULE LIN BUS 16 BODY CTRL MODULE LIN BUS 2 BODY CTRL MODULE LIN BUS 3 BODY CTRL MODULE LIN BUS 4 BODY CTRL MODULE LIN BUS 8 BODY CTRL MODULE LIN BUS 9 BRAKE APPLY SENS LOW REFERENCE BRAKE APPLY SENS SIG BRAKE APPLY SENS VOLTAGE REFERENCE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL, EXTERIOR LIGHTS SYSTEMS CRUISE/ETC/TCC BRAKE SIG DEFOGGER SYSTEM DOME/READING LAMP CTRL DOME/READING LAMP ENABLE SIG DOOR DEAD LOCK ACTUATOR LOCK CTRL DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER MODE 2 SW SIG GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HANDSFREE LIFTGATE SENSOR LAMP CTRL HEADLIGHTS SYSTEM HOOD STATUS B SIG HORN RELAY CTRL HORNS SYSTEM IGNITION MODE SWITCH START LED SIG INSTRUMENT PANEL LAMP DIMMER SWITCH LOW REFERENCE INSTRUMENT PANEL LAMP DIMMER SWITCH SIG INTERIOR DOOR HANDLE ACCENT LIGHTING CTRL INTERIOR PASSIVE ENTRY ANTENNA 2 HIGH SIG INTERIOR PASSIVE ENTRY ANTENNA 2 LOW SIG KEY CAPTURE/COLUMN LOCK SHIFT POSITION SIG LANE DEPARTURE WARNING DISABLE SWITCH SIG LANE DEPARTURE WARNING INDICATOR CTRL REAR PARKING ASSIST DISABLE LED SIG LED BACKLIGHT DIMMING CTRL 1 LEFT FRONT DOOR EXTERIOR SWITCH LOCK SIG LEFT FRONT DOOR LOCK ACTUATOR LOCK CTRL LEFT FRONT DOOR OPEN SWITCH SIG LEFT REAR DOOR EXTERIOR SWITCH LOCK SIG LEFT REAR DOOR LOCK ACTUATOR LOCK CTRL LEFT REAR SEAT HAPTIC MOVEMENT MOTOR CTRL LOCK ACTUATORS UNLOCK CTRL 1 LOCK ACTUATORS UNLOCK CTRL 2 NAVIGATION SYSTEM PARK LOCK SOLENOID ACTUATOR CTRL PASSIVE ENTRY LEFT FRONT ANTENNA SIG HIGH PASSIVE ENTRY LEFT FRONT ANTENNA SIG LOW PASSIVE ENTRY RIGHT FRONT ANTENNA SIG HIGH PASSIVE ENTRY RIGHT FRONT DOOR ANTENNA SIG LOW POWER DISTRIBUTION SYSTEM REAR CLOSURE HANDLE SWITCH OPEN SIG REAR CLOSURE KEYLESS ENTRY ANTENNA HIGH SIG REAR CLOSURE KEYLESS ENTRY ANTENNA LOW SIG REAR CLOSURE UNLATCH ACTUATOR UNLATCH CTRL REAR DEFOGGER RELAY CTRL REAR PARKING ASSIST DISABLE SIG RIGHT FRONT DOOR EXTERIOR SWITCH LOCK SIG RIGHT FRONT DOOR LOCK ACTUATOR LOCK CTRL RIGHT REAR DOOR EXTERIOR SWITCH LOCK SIG RIGHT REAR DOOR LOCK ACTUATOR LOCK CTRL RIGHT REAR SEAT HAPTIC MOVEMENT MOTOR CTRL SHIFT INTERLOCK SYSTEM SOUND SYSTEMS TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/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

BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BODY CONTROL MODULE LIN BUS 3 GND BRN/BLK WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DOWN DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER OUTSIDE REAR VIEW MIRROR ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR COURTESY LAMP DRIVER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR DRV MIR MTR COMMON CTRL DRV MIR MTR RH (+) LH (-) CTRL DRV MIR MTR UP (+) DOWN (-) CTRL DRV MIR POSITION SENS HI REF DRV MIR POSITION SENS LH (-) RH (+) SIG DRV MIR POSITION SENS UP (+) DOWN (-) SIG GRN/YEL WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT LEFT TURN SIGNAL REPEATER LAMP LF MIRR MOTOR FOLD IN CONTROL LF MIRR MOTOR FOLD OUT CONTROL LH OUTSIDE REAR VIEW MIRR POS SENS LO REF LOGIC MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM OFF OUT REAR BODY WIRING HARNESS JUNCTION BLOCK RED/BLU WIRE RED/VIO WIRE RIGHT VIO/BLU WIRE VIO/RED WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL/BRN WIRE YEL/WHT WIRE

BATT POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE LIN BUS 3 BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR FOLDING ACTUATOR GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE NAVIGATION SYSTEM PASS MIR MTR COMMON CTRL PASS MIR MTR FOLD IN CTRL PASS MIR MTR FOLD OUT CTRL PASS MIR MTR RH (+) LH (-) CTRL PASS MIR MTR UP (+) DOWN (-) CTRL PASS MIR POSITION SENS HI REF PASS MIR POSITION SENS LH (-) RH (+) SIG PASS MIR POSITION SENS LO REF PASS MIR POSITION SENS UP (+) DOWN (-) SIG PASSENGER FRONT SIDE DOOR WINDOW SWITCH PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR ACTUATOR PASSENGER OUTSIDE REAR VIEW MIRROR COURTESY LAMP PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR RED/BLU WIRE RIGHT TURN SIGNAL REPEATER LAMP VIO/WHT WIRE WHT WIRE WHT/GRN WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

AJAR SW SIG BLK WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOOR LOCKS SYSTEM DOWN DOWN SIG DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR DRV (+) DRV UP SIG EXPRESS EXPRESS SIG GRN WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES ILL LEFT FRONT LEFT REAR LIN SERIAL LIN SERIAL DATA BUS 3 LOCKOUT INDICATOR LOGIC MTR STATUS SIG REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRY WIRE RED/VIO WIRE RIGHT FRONT RIGHT REAR UNLCK SIG WHT/BRN WIRE WINDOW LOCK SWITCH WINDOW SWITCH

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

BATT PVE VOL 44 BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/ORG WIRE CAN BUS (+) 1 COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT OUTBOARD SEAT BACK AIR BAG DRIVER SEAT BELT SWITCH DRIVER FRONT SEAT BELT BUCKLE GRN/ORG WIRE GRY/ORG WIRE LEFT REAR FRONT, REAR ROW ROOF RAIL AIR BAG LOW REF NCA WIRE ORG/BLU WIRE ORG/BRN WIRE ORG/GRY WIRE ORG/WHT WIRE ORG/YEL WIRE PA AT LO RE SW SIG PASSENGER FRONT SEAT BELT RETRACTOR PASSENGER FRONT SEAT OUTBOARD SEAT BACK AIR BAG PASSENGER RESTRAINTS OCCUPANT CLASSIFICATION SYSTEM MODULE PASSENGER SEAT BELT SWITCH PASSENGER FRONT SEAT BELT BUCKLE PASSENGER SEAT BELT TENSION SENSOR RED/GRN WIRE RIGHT REAR FRONT, REAR ROW ROOF RAIL AIR BAG SHORTING BAR WHT WIRE

3-4, 5-6, 11-12, 13-14, 19-20, 21-22) AIR BAG IND AUTOSAR CAN BUS (+) 1 SERIAL DATA BATT+ VOLT BLK/WHT WIRE BLU WIRE BRN/ORG WIRE COMPUTER DATA LINES SYSTEM DISPLAY DRIVER INSTRUMENT PANEL LOWER AIR BAG DRV KNEE AIR BAG HIGH CTRL DRV KNEE AIR BAG LOW CTRL GRN/BLK WIRE GRY/ORG WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL AIR BAG INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIN BUS 1 LOGIC ORG/BLU WIRE ORG/GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS IP AIR BAG STAGE 1 HIGH CTRL PASS IP AIR BAG STAGE 1 LOW CTRL PASS IP AIR BAG STAGE 2 HIGH CTRL PASS IP AIR BAG STAGE 2 LOW CTRL PASS KNEE AIR BAG HIGH CTRL PASS KNEE AIR BAG LOW CTRL PASSENGER INSTRUMENT PANEL LOWER AIR BAG RED/GRN WIRE RESTRAINTS CONTROL MODULE (UNDER CENTER FLOOR CONSOLE) RUN/CRANK IGN 1 VOLT SEAT BELT IND SHORTING BAR SIG GROUND STEERING WHEEL AIR BAG COIL STR WHL AIR BAG STAGE 1 HIGH CTRL STR WHL AIR BAG STAGE 1 LOW CTRL STR WHL AIR BAG STAGE 2 HIGH CTRL STR WHL AIR BAG STAGE 2 LOW CTRL VIO/GRY WIRE W/ HEAD-UP DISPLAY WINDSHIELD W/O HEAD-UP DISPLAY WINDSHIELD WHT WIRE WHT/ORG WIRE YEL/ORG WIRE