Cadillac XT4 I (2018-2023) wht/grn Wiring diagrams

AIR IONIZER (ENGINE COMPARTMENT, IN HVAC HOUSING) BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMMUNICATION ENABLE DATA LINK CONNECTOR (UNDER LEFT SIDE OF DASH) DRIVER SEAT BOLSTER MEMORY CONTROL MODULE DRIVER SEAT MASSAGE SWITCH GRN WIRE GRN/BLU WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (+) 9 HI SPD GMLAN SERIAL DATA (-) 11 HI SPD GMLAN SERIAL DATA (-) 12 HI SPD GMLAN SERIAL DATA (-) 13 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN LO SPD GMLAN SERIAL DATA LO SPD GMLAN SERIAL DATA 2 LO SPD GMLAN SERIAL DATA 3 LOCAL INTERCONNECT LOCAL INTERCONNECT NETWORK BUS 19 LOGIC NETWORK BUS 13 NETWORK BUS 19 ORG/ WIRE RED/GRY WIRE RED/VIO WIRE SERIAL DATA SERIAL DATA 2 SERIAL DATA GATEWAY MODULE SIG GND STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE UNDERHOOD FUSE BLOCK VIO/GRY WIRE W/ MASSAGE SEAT WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE

BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE CAN BUS HIGH 3 SERIAL DATA CAN BUS HIGH SERIAL DATA CAN BUS LOW SERIAL DATA DRIVER SEAT MEMORY CONTROL MODULE GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HEADLAMP CONTROL MODULE HI SPD GMLAN SER DATA (-) 8 HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (+) 9 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) KEYLESS ENTRY CONTROL MODULE LIFTGATE CONTROL MODULE LO SPD GMLAN LOCAL INTERCONNECT NETWORK BUS 13 NETWORK BUS 16 NETWORK BUS 8 NETWORK SERIAL BUS 18 NETWORK SERIAL DATA 16 NETWORK SERIAL DATA 18 PASSENGER PRESENCE MODULE PASSENGER SEAT BOLSTER MEMORY CONTROL MODULE PASSENGER SEAT MASSAGE SWITCH PASSENGER SEAT MEMORY CONTROL MODULE RUN/CRANK IGNITION 1 VOLTAGE SERIAL DATA SERIAL DATA COMM ENABLE SERIAL DATA COMMUNICATION ENABLE SERIAL DATA GATEWAY MODULE (LOWER LEFT SIDE OF DASH) VIO/GRY WIRE W/ MEMORY WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE

BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE COMM ENABLE DETECTION CAN FRONT OBJECT GRN WIRE GRN/WHT WIRE GRY/GRN WIRE GRY/VIO WIRE HI SPD GMLAN HI SPEED GMLAN HIGH SPEED EXTENSION BUS 1 TERMINATING RESISTOR LEFT FRONT SHORT RANGE RADAR SENSOR MODULE LEFT SIDE OBJECT SENSOR MODULE LO SPD GMLAN LONG RANGE RADAR SENSOR MODULE RIGHT FRONT SHORT RANGE RADAR SENSOR MODULE RIGHT SIDE OBJECT SENSOR MODULE SENSOR CONTROL 2 SERIAL DATA SERIAL DATA (-) (1) SERIAL DATA (-) 4 SIDE OBJ W/ ACTIVE SAFETY W/ LANE ACTIVE SAFETY W/O BRAKE PREFILL, INTELLIGENT BRAKE ASSIST W/O LANE ACTIVE SAFETY WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

ACCESSORY WAKEUP ACTIVE SAFETY CONTROL MODULE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN/VIO WIRE COMMUNICATION ENABLE FRONT OBJECT GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/VIO WIRE HI SPD GMLAN HI SPEED GMLAN LO SPD GMLAN LOCAL INTERCONNECT NETWORK SERIAL BUS 1 NETWORK SERIAL BUS 15 NETWORK SERIAL BUS 2 NETWORK SERIAL BUS 3 NETWORK SERIAL BUS 4 REAR SHORT RANGE RADAR SENSOR MODULE SENSOR CONTROL 1 SENSOR CONTROL 2 SERIAL DATA SERIAL DATA (+) 8 SERIAL DATA (-) (1) SERIAL DATA (-) 4 SERIAL DATA 2 VIO/YEL WIRE W/ INTEGRATED BRAKE ASSIST W/O INTEGRATED BRAKE ASSIST WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE

BLK WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN WIRE CONTENT THEFT DETERRENT SENSOR MODULE FRONT SEAT HEATING CONTROL MODULE GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HEAD-UP DISPLAY (IF EQUIPPED) INSTRUMENT PANEL MULTI- FUNCTION SWITCH INTERCONNECT LEFT REAR WINDOW SWITCH LOCAL LOCAL INTERCONNECT LOGIC NETWORK BUS 12 NETWORK SERIAL BUS 1 NETWORK SERIAL BUS 15 NETWORK SERIAL BUS 2 NETWORK SERIAL BUS 4 POWER SOUNDER CONTENT THEFT DETERRENT ALARM MODULE RAIN SENSOR REAR SEAT HEATING CONTROL MODULE RIGHT REAR WINDOW SWITCH RIGHT STEERING WHEEL CONTROLS SWITCH SEAT HEATING SWITCH STEERING WHEEL AIR BAG COIL SUNROOF MOTOR VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE

BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BUS 6 (+) COMMUNICATION ENABLE ETHERNET ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HI SPEED GMLAN HVAC CONTROLS INFO DISPLAY MODULE INFOTAINMENT CONTROL SWITCH INSTRUMENT CLUSTER (W/ MULTI-COLOR STANDARD GRAPHIC) INTERCONNECT LO SPD GMLAN LOCAL LOGIC LOW SPD GMLAN LOW SPEED GMLAN NETWORK BUS 12 RADIO SERIAL DATA SERIAL DATA (-) 9 SERIAL DATA 2 TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE VIO/YEL WIRE W/ ALL ROUND VISION CAMERA WHT WIRE WHT/BLU WIRE WHT/GRN WIRE

ACC IGN VOLT ACTIVE SIG ANT 1 SIG HI ANT 1 SIG LO ANT 2 SIG HI ANT 2 SIG LO ANT 3 SIG HI ANT 3 SIG LO ANT SIG HI ANT SIG LO BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE CENTER CONSOLE FRONT KEYLESS ENTRY ANTENNA CENTER CONSOLE REAR KEYLESS ENTRY ANTENNA COMPUTER DATA LINES SYSTEM DOOR AJAR IND DRIVER INFORMATION CENTER DISPLAY DRV DR ANT SIG HI DRV DR ANT SIG LO DRV DR HANDLE SW SIG DRV DR OPEN SW SIG GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE HANDS-FREE LIFTGATE SENSOR LAMP HANDSFREE PROJECTION LAMP CTRL HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT CLUSTER KEYLESS ENTRY CONTROL MODULE LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE COURTESY LAMP LEFT REAR EXTERIOR DOOR HANDLE SWITCH LO SPD GMLAN SERIAL DATA LO SPD GMLAN SERIAL DATA 2 LOGIC LR DR HANDLE SW SIG PASS DR ANT SIG HI PASS DR ANT SIG LO PASS DR HANDLE SW SIG PASSIVE START SW 2 LO REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM RAP RLY 2 COIL CTRL REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR FASCIA KEYLESS ENTRY ANTENNA RED WIRE RED/WHT WIRE RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE COURTESY LAMP RIGHT REAR EXTERIOR DOOR HANDLE SWITCH RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT STRG CLMN LK SIG UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/GRY WIRE

"CHECK ENGINE" IND CTRL ABS IND. ADAPTIVE CRUISE IND AIR BAG IND AIR CONDITIONING IND AUTO HIGH BEAM IND AUTO STOP IND BATT POSITIVE VOLT BLK/WHT WIRE BLU/GRN WIRE BRAKE IND BRAKE WARNING IND BRN WIRE BRN/BLU WIRE BRN/WHT WIRE CHARGE IND COMPUTER DATA LINES SYSTEM CRUISE IND DAY NIGHT LED CTRL DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL LEVEL GAUGE IND ENGINE OIL PRESSURE IND ESC IND ESC OFF IND ETHERNET BUS 7 (-) FORWARD COLLISION ALERT LED CTRL FUEL GAUGE GRN/BLK WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HEAD-UP DISPLAY CIRCUIT HEAD-UP DISPLAY SIG HI GMLAN SER DATA (+) 7 HI GMLAN SER DATA (+) 9 HIGH BEAM ASSIST IND HIGH BEAM LAMP IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LANE KEEP ASSIST IND LEFT TURN IND LIGHTS ON IND LIN SER DATA BUS 12 LOGIC LOW FUEL IND LOW SPD GMLAN SER DATA 2 LOW WASHER FLUID IND CTRL LVDS GY MALFUNCTION IND NAVIGATION SYSTEM PARK BRAKE IND PARK LAMP IND PEDESTRIAN AHEAD IND POWER STEERING WARNING LIGHT IND REAR FOG LAMP IND RED/BLU WIRE RIGHT TURN IND RUN/CRANK IGN 1 VOLT SEAT BELT 2 IND SEAT BELT IND SECURITY IND SERVICE PARK BRAKE IND SNOW IND SPEEDOMETER TACHOMETER TIRE PRESSURE IND TRACTION CTRL OFF IND UNDERHOOD FUSE BLOCK VEHICLE AHEAD IND VIO WIRE VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WIPER/WASHER SYSTEM

BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BRAKE SYSTEM CONTROL MODULE COMPUTER COMPUTER DATA LINES SYSTEM DATA LINES DRIVER INFORMATION CENTER DISPLAY GRN/VIO WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE HI SPD GMLAN SER DATA (-) 9 HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT PARK BRAKE ACTUATOR LOCAL INTERCONNECT NETWORK BUS 31 LOGIC LR PARK BRAKE MOTOR APPLY CTRL LR PARK BRAKE MOTOR LOW REF PARK BRAKE SWITCH PARKING BRAKE IND. RED/VIO WIRE RED/YEL WIRE RIGHT PARK BRAKE ACTUATOR RR PARK BRAKE MOTOR APPLY CTRL RR PARK BRAKE MOTOR LOW REF SERVICE PARK BRAKE IND SIG GND SYSTEM UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE WHT WIRE WHT/GRN WIRE

5 VOLT REF AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRAKE PEDAL POSITION SENSOR BRK APPLY SENS CONTROL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POS SENS SIG COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ETRS OUT OF PARK SWITCH 2 SIGNAL ETRS OUT OF PARK SWITCH SIGNAL GROUND GRY/BRN WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LOW REF NCA WIRE PARK LOCK SOLENOID CONTROL RED/GRN WIRE TRANSMISSION CONTROL MODULE TRANSMISSION HIGH SIDE DRIVER 2 SIGNAL TRANSMISSION PARK VALVE LOCK SOLENOID ACTUATOR TRANSMISSION PARK VALVE POSITION SWITCH TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL/GRN WIRE