Cadillac CT4-V I (2019-2024) engine wiring harness junction block Wiring diagrams

ACTIVE GRILLE AIR SHUTTER 1 ACTUATOR AUTOSAR CAN BUS SERIAL DATA (-) 5 BLK WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN/VIO WIRE GROUND HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIN LOGIC RUN/CRANK IGN 1 VOLTAGE VIO/BLK WIRE VIO/BLU WIRE W/O WINDSHIELD HEAD-UP DISPLAY

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE BLU WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SENSOR BRAKE FLUID LEVEL SWITCH SIGNAL BRAKE MASTER CYLINDER) BRAKE SYSTEM CONTROL MODULE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM ELECTRONIC BRAKE CONTROL MODULE LIN BUS 1 ENGINE WIRING HARNESS JUNCTION BLOCK FRONT BRAKE PAD WEAR SENSOR SIGNAL GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GROUND 27 GROUND 7 GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES LEFT FRONT WHEEL SPEED SENSOR LEFT FRONT WHEEL SPEED SENSOR CONTROL LEFT FRONT WHEEL SPEED SENSOR SIGNAL LEFT PARK BRAKE MOTOR APPLY CONTROL LEFT PARK BRAKE MOTOR LOW REFERENCE LEFT PARKING BRAKE ACTUATOR LEFT REAR WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR CONTROL LEFT REAR WHEEL SPEED SENSOR SIGNAL NCA WIRE REAR BRAKE PAD WEAR SENSOR SIGNAL RED/BRN WIRE RED/WHT WIRE RIGHT FRONT WHEEL SPEED SENSOR RIGHT FRONT WHEEL SPEED SENSOR CONTROL RIGHT FRONT WHEEL SPEED SENSOR SIGNAL RIGHT PARK BRAKE MOTOR APPLY CONTROL RIGHT PARK BRAKE MOTOR LOW REFERENCE RIGHT PARKING BRAKE ACTUATOR RIGHT REAR WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR CONTROL RIGHT REAR WHEEL SPEED SENSOR SIGNAL RUN/CRANK IGNITION 1 VOLTAGE 21 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 10 SECONDARY FUSED BATTERY POSITIVE VOLTAGE 11 VIO WIRE VIO/BLK WIRE WHT WIRE YEL 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

AUTOSAR CAN BUS (+) 5 SERIAL DATA BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE LEFT FRONT SHORT RANGE RADAR SENSOR LEFT REAR SIDE SHORT RANGE RADAR SENSOR LOGIC LONG RANGE FORWARD RANGE RADAR SENSOR RED/YEL WIRE RIGHT FRONT SHORT RANGE RADAR SENSOR RIGHT REAR SIDE SHORT RANGE RADAR SENSOR WHT/GRY WIRE

A/C COMPRESSOR A/C COMPRESSOR CLUTCH AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION AUXILIARY FLUID PUMP BLK WIRE CHARGE AIR COOLER COOLANT PUMP CONTENT THEFT DETERRENT SENSOR ENGINE CONTROL FLOW CONTROL VALVE ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE RESTART RELAY ENGINE WIRING HARNESS JUNCTION BLOCK EVAPORATIVE EMISSION PURGE PUMP GARAGE DOOR OPENER TRANSMITTER IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 INSIDE AIR MOISTURE, WINDSHIELD TEMPERATURE SENSOR INSIDE REAR VIEW MIRROR LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR SIDE DOOR INSIDE HANDLE ILLUMINATION LAMP LEFT REAR SIDE DOOR LATCH LEFT REAR SIDE DOOR WINDOW SWITCH LEFT ROOF RAIL REAR SEAT POSITION READING, COURTESY LAMP LEFT SUNSHADE LEFT TRIM PANEL REAR SIDE DOOR LIGHT CONDUCTOR LAMP NCA WIRE RIGHT ROOF RAIL REAR SEAT POSITION READING, COURTESY LAMP RIGHT SUNSHADE ROOF CONSOLE STARTER RELAY SUNROOF CONTROL MODULE TRANSFER CASE CONTROL MODULE W/ DELUXE INTERIOR LAMP PACKAGE W/O WIPER SYSTEM WINDSHIELD WINDSHIELD FRONT VIEW CAMERA YEL 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

BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BATTERY DISTRIBUTION FUSE BLOCK BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE ENGINE WIRING HARNESS JUNCTION BLOCK GRN WIRE GRN/WHT WIRE GRY WIRE HIGH NOTE HORN HORN RELAY HORN RLY CTRL HORN SW SIG HOT AT ALL TIMES LOW NOTE HORN NCA WIRE RED WIRE STEERING WHEEL AIR BAG COIL STEERING WHEEL HORN CONTACT SWITCH WHT WIRE

ACC IND BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN/BLK WIRE CAN-BUS COMPUTER DATA LINES SYSTEM DRIVER FRONT SEAT ADJUSTER SWITCH DRIVER FRONT SIDE DOOR WINDOW REGULATOR MOTOR DRIVER SEAT ADJUSTER MEMORY MODULE ENGINE CONTROL MODULE ENGINE START/ STOP ENGINE WIRING HARNESS JUNCTION BLOCK FROM ENGINE WIRING HARNESS JUNCTION BLOCK (DIAGRAM 1 OF 8) FROM REAR BODY WIRING HARNESS JUNCTION BLOCK (DIAGRAM 7 OF 8) GRN/BLK WIRE IGNITION MODE SWITCH ACCESSORY LED SIGNAL IGNITION MODE SWITCH MODE VOLTAGE IGNITION MODE SWITCH START LED SIGNAL ILL LEFT REAR SIDE DOOR WINDOW SWITCH LOW REFERENCE MULTI-FUNCTION POWER SUPPLY CONVERTER ON/OFF VEHICLE SWITCH PASSENGER FRONT SEAT ADJUSTER SWITCH PASSENGER SEAT ADJUSTER MEMORY MODULE PASSIVE START SWITCH SIGNAL 2 REAR BODY WIRING HARNESS JUNCTION BLOCK RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE SERIAL DATA GATEWAY MODULE START IND STARTER RELAY TO INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK (DIAGRAM 4 OF 8) TRAILER IGNITION POWER RELAY VIO/GRN WIRE W/ MEMORY W/ POWER BOLSTER PASSENGER SEAT W/O MEMORY W/O POWER BOLSTER PASSENGER SEAT WHT WIRE YEL WIRE YEL/BLK 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

AUTOMATIC TRANSMISSION ASSEMBLY AUTOMATIC TRANSMISSION MANUAL SHIFT SHAFT POSITION SWITCH BATTERY BATTERY DISTRIBUTION FUSE BLOCK BATTERY MONITOR MODULE BLK WIRE BLK/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM ENGINE RESTART RELAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/YEL WIRE HOT AT ALL TIMES JUMP START BATTERY CABLE POST TERMINAL RED/YEL WIRE STARTER STARTER RELAY SW MODE CTRL X TRANSMISSION CONTROL MODULE WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/VIO WIRE