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

AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP BLK WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BRN WIRE COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GEAR SHIFT CONTROL MODULE (RIGHT SIDE OF DASH) GRN WIRE GRN/GRY WIRE GRN/ORG WIRE GRN/VIO WIRE GRN/WHT WIRE GROUND GRY WIRE GRY/BRN WIRE GRY/ORG WIRE HOT AT ALL TIMES IGNITION 1 VOLT ILL INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC NCA WIRE ORG/ WIRE RED/WHT WIRE SERIAL DATA SERIAL DATA (+) (3) SERIAL DATA (-) BATTERY POS VOLT TRANSMISSION CONTROL SOLENOID VALVE 7 TRANSMISSION CONTROL SOLENOID VALVE 8 TRANSMISSION PARK VALVE LOCK SOLENOID ACTUATOR TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE WAKE UP SIG WHT WIRE WHT/YEL WIRE

5-VOLT REF 1 AUTOMATIC TRANSMISSION ACCUMULATOR SOLENOID VALVE AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION MANUAL SHIFT SHAFT POSITION SWITCH BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE CAN BUS (+) 2 COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (UNDER UNDERHOOD FUSE BLOCK) GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE LOW REF (1) MODE CTRL Y RED WIRE TRANSMISSION CONTROL SOLENOID VALVE 1 TRANSMISSION CONTROL SOLENOID VALVE 2 TRANSMISSION CONTROL SOLENOID VALVE 3 TRANSMISSION CONTROL SOLENOID VALVE 4 TRANSMISSION CONTROL SOLENOID VALVE 5 TRANSMISSION CONTROL SOLENOID VALVE 6 TRANSMISSION CONTROL SOLENOID VALVE 7 TRANSMISSION CONTROL SOLENOID VALVE 8 TRANSMISSION CONTROL SOLENOID VALVE 9 TRANSMISSION FLUID TEMPERATURE SENSOR TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION OUTPUT SHAFT SPEED SENSOR VIO/BLU WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ACTR UNLOCK CTRL 1 AIR CONDITIONING SYSTEM AMBIENT LIGHT/SUNLOAD SENSOR BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (RIGHT SIDE OF DASH) BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH FUEL DR ACTR LOCK CTRL GRN/BLK WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOOD STATUS B SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IMMO ANT LOW SIG INTR KYLS ANT 1 HIGH SIG IMMO ANT SIG [+] INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK INTR KYLS ANT 1 LOW SIG INTR KYLS ANT 2 LOW SIG KYLS ANT HIGH SIG KYLS ANT LOW SIG LEFT LOW FREQUENCY BODY SIDE ANTENNA LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE SWITCH LF ACTR LOCK CTRL LF ANT HIGH SIG LF ANT LOW SIG LF DR EXTR SW LOCK SIG LIN BUS 16 LIN BUS 4 LOCK ACTR UNLOCK CTRL 2 LOW FREQUENCY INSTRUMENT PANEL ANTENNA LOW FREQUENCY REAR BUMPER ANTENNA LR DR EXTR SW LOCK SIG LR DR LOCK ACTR LOCK CTRL NCA WIRE OPEN SW SIG PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH REAR BODY WIRING HARNESS JUNCTION BLOCK REAR DEFOG RLY CTRL RED/BLU WIRE RED/VIO WIRE REMOTE FUNCTION ACTUATOR MODULE RF DOOR ANT SIG HIGH INTR KYLS ANT 2 HIGH SIG RF DOOR ANT SIG LOW RF DR EXTR SW LOCK SIG RF DR LOCK ACTR LOCK CTRL RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE SWITCH RR DR EXTR SW LOCK SIG RR DR LOCK ACTR LOCK CTRL SCTY IND CTRL SCTY LOCK ACTR SIG LR SCTY LOCK ACTR SIG RR SCTY LOCK MTR LOCK CTRL SENS LOW REF VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL/GRN WIRE

BLK WIRE BLU WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOOR LOCK DRIVER DOOR LOCK SWITCH DRIVER FRONT SIDE DOOR LATCH DRIVER FRONT SIDE DOOR WINDOW CONTROL SWITCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR ENGINE CONTROL MODULE FUEL TANK FILLER DOOR LOCK ACTUATOR GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE IN LUGGAGE COMPT) IND CTRL LF DR AJAR LIN BUS 3 LOCK CTRL LOGIC LOW FREQUENCY REAR COMPARTMENT POWER ANTENNA PASSENGER FRONT SIDE DOOR LATCH PASSENGER FRONT SIDE DOOR WINDOW REGULATOR MOTOR REAR LOW FREQUENCY CONSOLE ANTENNA RF DR AJAR RIGHT LOW FREQUENCY BODY SIDE ANTENNA SW SIG UNLOCK CTRL VIO WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE

BLK WIRE BLU/YEL WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CONTENT THEFT DETERRENT SENSOR CTRL DIMM ENGINE COMPARTMENT COVER SWITCH ENGINE WIRING HARNESS JUNCTION BLOCK GARAGE DOOR OPENER TRANSMITTER GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT REAR SIDE DOOR LATCH LEFT REAR SIDE DOOR WINDOW SWITCH LIN BUS 4 LIN BUS 8 LOGIC LR DR AJAR NCA WIRE RED/BLU WIRE RED/BRN WIRE SECURITY IND SW SIG VIO WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

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

BATT POS VOL 6 BLK WIRE BLK/BLU WIRE BLU/BLK WIRE BRN/WHT WIRE BUS (+) 3 SER DATA CLTH SOL ACTR CTRL CLTH SOL ACTR LO REF COMPUTER DATA LINES SYSTEM FLUID TEMP SEN SIG 2 GND 23 HOT AT ALL TIMES REAR BODY WIRING HARNESS JUNCTION BLOCK RED/WHT WIRE TRANSFER CASE CONTROL MODULE TRANSFER CASE FLUID TEMPERATURE SENSOR TRANSFER CASE TWO/FOUR WHEEL DRIVE CLUTCH COIL WHT WIRE YEL/BLK WIRE YEL/WHT WIRE

A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS SIG ACCELERATOR PEDAL POS LO REF 1 ACCELERATOR PEDAL POS LO REF 2 ACCELERATOR PEDAL POS SIG 1 ACCELERATOR PEDAL POS SIG 2 AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS SIG AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 3 SERIAL DATA BATT POS VOLT 4 BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE POS SENS SIG BRN/BLU WIRE BRN/RED WIRE CAMSHAFT EXHAUST LOBE AXIAL POS SIG 1 CAMSHAFT EXHAUST LOBE AXIAL POS SIG 2 CAMSHAFT EXHAUST STEPPER CYLINDER 2 FRONT SOL CTRL CAMSHAFT EXHAUST STEPPER CYLINDER 2 POS SIG CAMSHAFT EXHAUST STEPPER CYLINDER 2 REAR SOL CTRL CAMSHAFT EXHAUST STEPPER CYLINDER 3 FRONT SOL CTRL CAMSHAFT EXHAUST STEPPER CYLINDER 3 POS SIG CAMSHAFT EXHAUST STEPPER CYLINDER 3 REAR SOL CTRL CAMSHAFT INTAKE LOBE AXIAL POS SIG 1 CAMSHAFT INTAKE LOBE AXIAL POS SIG 2 CAMSHAFT INTAKE STEPPER CYLINDER 4 FRONT SOL CTRL CAMSHAFT INTAKE STEPPER CYLINDER 4 REAR SOL CTRL CAMSHAFT POS MOTOR CONTROL A CAMSHAFT POS MOTOR CONTROL B CAMSHAFT POS MOTOR CONTROL C CAMSHAFT POS MOTOR CONTROL D CAMSHAFT POS MOTOR POS SENSOR 1 SIG CAMSHAFT POS MOTOR POS SENSOR 2 SIG CAMSHAFT POS SENSOR 2 GROUND COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DRIVELINE MOUNT ACTUATOR 1 CTRL ENGINE CONTROL MODULE (UNDER FUSE BLOCK UNDERHOOD) ENGINE CTRL MODULE LIN BUS 4 FUEL PUMP PRIMARY RLY CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOOD STATUS A SIG MASS AIR FLOW SENS SIG POWER DISTRIBUTION SYSTEM POWERTRAIN MAIN RLY FUSED SUPLY 1 POWERTRAIN MAIN RLY FUSED SUPLY 2 POWERTRAIN RLY COIL CTRL PRIVATE SERIAL DATA POWERTRAIN CAN BUS (+) SERIAL DATA RED/BRN WIRE RUN/CRANK IGNITION 1 VOLT 4 STARTER ENABLE RLY CTRL STARTER PINION SOL ACTUATOR RLY CTRL STARTING/ CHARGING SYSTEM STEP CAM A CTRL STEP CAM B CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

AMBIENT AIR TEMPERATURE SENSOR AUTOSAR CAN BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE APLY SENS BRAKE APLY SENS CRTL BRAKE APLY SENS SIG BRAKE PEDAL POSITION SENSOR BRN/BLU WIRE BRN/YEL WIRE BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE OIL TEMPERATURE SENSOR FUEL PRESSURE, TEMPERATURE SENSOR INTAKE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE LEFT ENGINE MOUNT SOLENOID VALVE LO REF LOGIC RED/BLU WIRE RIGHT ENGINE MOUNT SOLENOID VALVE VIO WIRE VIO/BLU WIRE VIO/BRN WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLU WIRE

BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BUS (-) SERIAL DATA COMPUTER DATA LINES SYSTEM CTRL VLV 1 CTRL VLV 2 DRIVER INFORMATION CENTER DISPLAY ECT IND ELECTRONIC MUFFLERS SYSTEM ENGINE OIL IND EVAP VENT SOL FEEDBACK SIG FUEL GAUGE FUEL IND FUEL PRESSURE FUEL PRESSURE SENS FUEL PUMP ASSEMBLY FUEL PUMP CTRL FUEL PUMP POWER CONTROL MODULE FUEL PUMP PRIMARY FUEL PUMP SUPPLY FUEL TANK FUEL TANK PRESSURE FUSED BATT GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/YEL WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEVEL SENS SIG LOGIC MALFUNCTION IND NCA WIRE PHASE 3 POSITIVE VOLTAGE 26 POWER MODULE POWERTRAIN CAN PRESSURE SENS SIG PRIMARY FUEL PRIVATE SERIAL DATA RED/VIO WIRE RELAY CTRL SECONDARY SECONDARY FUEL SENS 2 LO REF SENS LO REF SENS LOW REF SENS SIG SHIELD GND SUPPLY VOLTAGE VALVE CTRL VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VOLTAGE PHASE 2 W/O WINDSHIELD HEAD-UP DISPLAY WAKE UP SIG WHT WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE