Cadillac XT4 I (2018-2023) blk/gry Wiring diagrams

AUTO LEVEL CTRL AUTO LEVEL CTRL POS SENS LOW REF AUTO LEVEL CTRL POS SENS SIG AUXILIARY UNDERHOOD FUSE BLOCK BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BEAM RLY CTRL BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE BRN/YEL WIRE CAN BUS HIGH 3 SERIAL DATA CAN BUS HIGH SERIAL DATA CAN BUS LOW 3 SERIAL DATA CAN BUS LOW SERIAL DATA COMPUTER DATA LINES SYSTEM DATA 1 (+) FRONT AXLE LEVEL FRONT AXLE LEVEL SENS LOW REF FRONT AXLE LEVEL SENSOR SIGNAL FRONT SUSPENSION HEIGHT SENSOR GMLAN SERIAL GROUND HDLP LOW HEADLAMP CONTROL MODULE HEADLAMP HIGH BEAM RELAY HI SPD GMLAN SERIAL DATA (+) 8 HIGH SPD HOT AT ALL TIMES LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP LEVELING ACTUATOR NCA WIRE POWER DISTRIBUTION SYSTEM REAR SUSPENSION HEIGHT SENSOR RED/YEL WIRE RIGHT HEADLAMP ASSEMBLY RIGHT HEADLAMP LEVELING ACTUATOR SERIAL DATA COMM ENABLE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/GRY WIRE

A/C COMPRESSOR CLTH RLY CTRL A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE ACTR CTRL HI COOLANT DIVERTER VALVE ACTR CTRL LO COOLANT DIVERTER VALVE POSI SIG COOLING TEMP SNS 2 SIG ENG CTRL SENSS 5 VOLT REF (1) ENG CTRL SENSS 5 VOLT REF (2) ENG CTRL SENSS 5 VOLT REF (3) ENG CTRL SENSS LOW REF (1) ENG CTRL SENSS LOW REF (2) ENGINE CONTROL MODULE (ENGINE COMPT, RIGHT SIDE OF BATTERY) ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 GRN WIRE GRN/BLK WIRE HEATER CORE INLET TEMP SIG HEATER CORE OUTLET TEMP SIG HI SPEED GMLAN SERIAL DATA (+) 1 OUTSIDE AMBIENT AIR TEMPERATURE SENS SIG HI SPEED GMLAN SERIAL DATA (-) 1 HOT W/ IGNITION MAIN RELAY ENERGIZED LOGIC RADIATOR COOLANT TEMPERATURE SENSOR RIGHT SIDE OF RADIATOR) RUN/CRANK IGNITION 1 VOLTAGE SIG GND UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE

BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LEFT REAR SUSPENSION POSITION SENSOR LF DAMPING SERVO CTRL LF STRUT POSI SENS LOW REF LF STRUT POSI SENS SIG LOGIC LOW SPEED GMLAN SERIAL DATA 2 LR DAMPING SERVO CTRL LR STRUT POSI SENS LOW REF LR STRUT POSI SENS SIG NCA WIRE RED/YEL WIRE RF DAMPING SERVO CTRL RF STRUT POSI SENS LOW REF RF STRUT POSI SENS SIG RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR DAMP SERVO CTRL SERIAL DATA COMM ENABLE SUSPENSION CONTROL MODULE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE YEL/RED WIRE YEL/WHT WIRE

6-WAY, 8-WAY PASSENGER SEAT ADJUSTER BATT POSITIVE VOLT BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/YEL WIRE BLU WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER BACK SEAT HEATING ELEMENT DRIVER CUSHION SEAT HEATING ELEMENT DRV HEATED BACK NTC SIG DRV HEATED SEAT ELEMENT CTRL DRV HEATED SEAT ELEMENT LO REF DRV HEATED SEAT NTC LO REF DRV HEATED SEAT NTC SIG DRV SEAT VENT MTR CTRL 1 EXCEPT 6-WAY, 8-WAY PASSENGER SEAT ADJUSTER FRONT SEAT HEATING CONTROL MODULE (UNDER FRONT PASSENGER SEAT) GRN/BLU WIRE GRN/VIO WIRE GRY/BLK WIRE HOT AT ALL TIMES PASS HEATED BACK NTC LO REF PASS HEATED BACK NTC SIG PASS HEATED SEAT ELEMENT CTRL PASS HEATED SEAT ELEMENT LO REF PASS HEATED SEAT NTC LO REF PASS HEATED SEAT NTC SIG PASS SEAT VENT MTR CTRL 1 PASSENGER BACK SEAT HEATING ELEMENT PASSENGER CUSHION SEAT HEATING ELEMENT RED WIRE RED/BLU WIRE RED/GRN WIRE SERIAL DATA BUS 2 UNDERHOOD FUSE BLOCK VIO/WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL/GRY WIRE

BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BRN WIRE CLOSE COMPUTER DATA LINES SYSTEM DK BLU WIRE DOWN EXPRESS CLOSE EXPRESS OPEN FRONT OVERHEAD CONSOLE ASSEMBLY GRY WIRE HOT AT ALL TIMES LOGIC ORG/ WIRE PPL PPL DOWN RED/GRY WIRE SUNROOF MOTOR SUNROOF SUNSHADE MOTOR TAN WIRE UNDERHOOD FUSE BLOCK VIO WIRE WHT WIRE YEL WIRE

BATTERY POST VOLT BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM FF LOW LVL AUDIO (-) LOW REF RF LOW LVL AUDIO SIG GRN WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT STEERING WHEEL CONTROLS SWITCH LF AUDIO LOW REF SER DATA COMM ENABLE LF LOW LVL AUDIO SIG LOGIC LR LOW LVL AUDIO (-) LOW REF LR LOW LVL AUDIO SIG LT BLU/RED WIRE MICROPHONE LO REF MICROPHONE SIG MUTE NCA WIRE POWER SUPPLY TRANSFORMER RADIO RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RF LOW LVL AUDIO (-) LOW REF RR LOW LVL AUDIO SIG SER DATA SER DATA (+) 9 SER DATA (-) 9 BACKUP LAMP CTRL SER DATA (-) LO SPD GMLAN SER DATA 2 SIG GND STEERING WHEEL AIR BAG COIL SUPPLY VOLT 1 VIO/YEL WIRE VOICE VOICE RECOGNITION AUDIO SIG CELLULAR TELEPHONE MICROPHONE SIG VOICE RECOGNITION LO REF VOICE RECOGNITION AUDIO SIG W/ ONSTAR W/O ONSTAR WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

AUDIO LOW REF AUDIO SIG + BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/RED WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLU WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE CELL COAX COMPUTER DATA LINES SYSTEM DOWN GPS GRN WIRE GRN/BLK WIRE GRY/GRN WIRE GRY/YEL WIRE HIGH SPD GMLAN INFOTAINMENT CONTROL SWITCH LEFT LEFT FRONT MOBILE TELEPHONE MICROPHONE LOGIC LOW REF LT BLU/RED WIRE MICROPHONE (-) LOW REF MICROPHONE SIG NCA WIRE PNK WIRE PPL/YEL WIRE RED WIRE RED/BLU WIRE RED/VIO WIRE RIGHT RIGHT FRONT MOBILE TELEPHONE MICROPHONE RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SEL SERIAL DATA (-) 9 VIO/YEL WIRE VOL (-) W/ ONSTAR W/O ONSTAR WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE

BATTERY POSITIVE VOLTAGE BATTERY POST VOLT BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/RED WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM DOWN GRN WIRE GRN/BLK WIRE GROUND GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT LOGIC LT BLU/RED WIRE MICROPHONE LO REF MICROPHONE SIG PNK WIRE POWER SUPPLY TRANSFORMER RADIO RED WIRE RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT RIGHT STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SER DATA SER DATA (+) 9 SER DATA (-) 9 BACKUP LAMP CTRL SER DATA (-) LO SPD GMLAN SER DATA 2 SER DATA COMM ENABLE STEERING WHEEL AIR BAG COIL SUPPLY VOLTAGE 1 VIO/YEL WIRE VOICE RECOGNITION AUDIO SIG VOICE RECOGNITION LO REF VOL (-) VOL - SEL W/ ONSTAR W/O ONSTAR WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE

AUDIO LOW REF AUDIO SIG + BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BRN WIRE BRN/BLK WIRE BRN/RED WIRE CELL COAX COMPUTER DATA LINES SYSTEM GPS GRN WIRE GRY/GRN WIRE GRY/YEL WIRE HIGH SPD GMLAN INFOTAINMENT CONTROL SWITCH LEFT FRONT MOBILE TELEPHONE MICROPHONE LEFT STEERING WHEEL CONTROLS SWITCH LOGIC LOW REF LT BLU/RED WIRE MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NCA WIRE PNK WIRE PPL/YEL WIRE RED WIRE RED/BLU WIRE RED/VIO WIRE RIGHT FRONT MOBILE TELEPHONE MICROPHONE SERIAL DATA (-) 9 VIO/YEL WIRE VOICE W/ ONSTAR W/O ONSTAR WHT/BLK WIRE WHT/GRN WIRE

AMBIENT AIR TEMPERATURE SENSOR BLK/BRN WIRE BLK/GRY WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/GRY WIRE ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE OIL TEMPERATURE SENSOR EVAPORATIVE EMISSION PURGE SOLENOID VALVE EVAPORATIVE EMISSION VENT SOLENOID VALVE FUEL TANK PRESSURE SENSOR GRN WIRE GRN/BLU WIRE RADIATOR COOLANT TEMPERATURE SENSOR RED/YEL WIRE RIGHT SIDE OF RADIATOR) TURBOCHARGER BYPASS SOLENOID VALVE VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE YEL/RED WIRE YEL/WHT WIRE