Cadillac XT6 I (2019-2024) headlights system Wiring diagrams

A/C COMPRESSOR SOLENOID VALVE CTRL AMBIENT LIGHT SENSOR SIGNAL AMBIENT LIGHT/SUNLOAD SENSOR (TOP CENTER OF DASH) AUXILIARY BLOWER MOTOR AUXILIARY BLOWER MOTOR CONTROL MODULE BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLOWER BLOWER MOTOR BLOWER MOTOR SPEED CTRL BLOWER SPEED FEEDBACK SIG BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/BLK WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM CTRL 2 DEFOGGER SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES HUMIDITY SENSOR SIGNAL HUMIDITY TEMP SENSOR SIGNAL HUMIDITY/WINDSCREEN TEMP SENSOR LOW REFERENCE HVAC CONTROL MODULE (BEHIND CENTER OF DASH) INSIDE AIR TEMP SENSOR SIGNAL INSTRUMENT PANEL FUSE BLOCK LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 1 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA LOWER AIR TEMP SENSOR SIGNAL MOTOR NCA WIRE POS VOLT POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR REAR BLOWER MOTOR SPEED CTRL REAR BODY FUSE BLOCK REAR DEFOG RELAY CTRL RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/YEL WIRE RUN/CRANK IGNITION 1 VOLTAGE SIG SOLAR SENSOR LOW REFERENCE SPEED CTRL SPLY VOLT 1 UNDERHOOD FUSE BLOCK UPPER AIR TEMP SENSOR SIGNAL VIO/GRY WIRE WHT/BLU WIRE WINDSCREEN TEMP SENSOR SIGNAL WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL/BLU WIRE YEL/RED WIRE YEL/VIO WIRE

AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES, ACTIVE BODYWORKS SYSTEMS ANTI-THEFT SYSTEM BATT POS VOLT 21 BATT POS VOLT 22 BATT POS VOLT 25 BATTERY FUSE BLOCK BCM LIN BUS 4 BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER FRONT OF CENTER CONSOLE) BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK APPLY SENS VOLT REF BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/WHT WIRE BRN/YEL WIRE CEN CON MULT SW SIG COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC/BRAKE SIG DOME/READING LP DISABLE SW SIG DOOR LOCKS, ANTI-THEFT SYSTEMS DRL CTRL RLY 2 DRL RLY CTRL DRV DOOR LK SW LK SIG DRV DOOR LK SW UNLK SIG FRT FOOTWELL ACCENT LIGHTING CTRL GND 17 GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HAZARD WARNING SW SIG HDLP AUTOMATIC HIGH BEAM CTRL HDLP SW OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HI SPD GMLAN SERIAL DATA (+) 1 REM CTRL DR LK RECR REC SIG HI SPD GMLAN SERIAL DATA (-) (1) HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES IGN MOD SW ACC LED SIG IGN MODE SW MODE VOLT IGNITION MOD SW START LED SIG IND DIMMING CTRL INST PANEL LP DIM SW LOW REF INST PNL LP DIMM SW SIG INSTRUMENT PANEL FUSE BLOCK LED BACKLIGHT DIMMING CTRL 1 LF TURN SIG LP CTRL LH CORNERING LP CTRL LH TRAILER TURN SIG LP CTRL LOW SPD GMLAN SERIAL DATA LR TURN SIG LP CTRL 2 OUT OF PARK SIG PARK LP RLY CTRL POWER DISTRIBUTION SYSTEM REAR FOG LP SW SIG REAR WINDOW WASHER RLY CTRL REAR WINDOW WIPER SW SIG RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE REM CTRL DR LK RECEIVER LO REF REM CTRL DR LK RECEIVER SIG REMOTE CTRL DR LK RECEIVER CTRL RF DRL CTRL RH PARK LP CTRL RH TRAILER TURN SIG LP CTRL SEATS SYSTEM SEC FSD BATT POS VOLT 27 SEC FSD BATT POS VOLT 34 SEC FSD BATT POS VOLT 38 SEC FSD BATT POS VOLT 40 SECURITY IND CTRL SHIFT INTERLOCK SYSTEM STARTING/CHARGING SYSTEM STEERING COLUMN LK STATUS SIG STOP/START IND CTRL TRACTION CTRL SW SIG 1 TRAILER BRAKE APPLY SIG VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/VIO WIRE WINDSHIELD WIPER SW HI SIG WIPER/WASHER SYSTEM YEL WIRE YEL/GRN WIRE YEL/GRY WIRE

ACC VOLT ACC WAKEUP SERIAL DATA AIR CONDITIONING SYSTEM ANTI-THEFT SYSTEM BACKUP LP CTRL BCM LIN BUS 1 BCM LIN BUS 2 BCM LIN BUS 3 BLK WIRE BLK/GRY WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BODY CONTROL MODULE (LOWER FRONT OF CENTER CONSOLE) BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG CRUISE CONTROL SYSTEM CRUISE CTRL SET/COAST/RESUME/ ACCELERATE SW SIG DEAD LK RLY CTRL TRAILER BRAKE APPLY SIG REAR COMPT COURTESY LP CTRL DEFOGGER SYSTEM DIST SEN CRU CTRL U/D SW SIG DOME LP OFF IND CTRL DOOR LK ACTUATOR LK CTRL DOOR LK ACTUATOR UNLK CTRL DOOR LOCK, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT SYSTEMS DR LK CTRL DR LK ACTUATOR CTRL 2 DRV OS RR VIEW MIR LP CTRL FUEL FILL DR LK RLY CTRL GLASS BREAKAGE SENS 2 SIG GND 10 GND 7 GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/PPL 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/YEL WIRE HAZ WARNING SW LH TURN SIG HAZ WARNING SW RH TURN SIG HDLP SW FLASH SIG HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HI BEAM SELECT SW HI BEAM SIG HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 RH PARK LP CTRL HOOD STATUS B SIG HORN SW SIG HORNS SYSTEM IGN SW MOD CHALL ACT SIG IMMOBILIZER CTRL MOD LOW REF IMMOBILIZER CTRL MOD SPLY IMMOBILIZER LIN BUS 1 INADVERTENT LOAD CTRL INT DR HANDLE ACC LIG CTRL INTERIOR LP CTRL LED BACKLIGHT DIMMING CTRL 1 LEFT HDLP BULB OUTAGE SIG LEFT PARK LP CTRL LF DRL CTRL LH HDLP LOW BEAM CTRL LOW SPD GMLAN SERIAL DATA LR STOP LP CTRL MOB DEV WIRELESS CHARGER MALFUNCTION IND CTRL MOB DEV WL CHAG IND CONT CHARGE IND CTRL PASS DOOR LK SW UNLK CTRL PASS DR LK SW LK CTRL POWER DISTRIBUTION SYSTEM PPL/BLU WIRE REAR FOG LP CTRL REAR LICENSE PLATE LP CTRL REAR TURN SIG LP FEEDBACK SIG REAR WIPER MTR RLY COIL CTRL RED/WHT WIRE RF TURN SIG LP CTRL RH CORNERING LP CTL RH HDLP HI BEAM CTRL RH HDLP LOW BEAM CTRL RIGHT HDLP BULB OUT SIG RR STOP LP CTRL RR TURN SIG LP CTRL 2 RR TURN SIG LP FEEDBACK SIG RUN/CRANK IGN 1 VOLT RUN/CRANK RLY COIL CTRL WINDSHIELD WIPER MTR RLY COIL CTRL SEC FUSED BATT POS VOLT 27 SERIAL DATA COMM ENABLE STARTING/CHARGING SYSTEM STOP LP RLY COIL CTRL STOP/START SW SIG TAP UP/DOWN SW SIG TRANSMISSIONS SYSTEM VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O THEFT DETERRENT WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RLY CTRL WINDSHIELD WASHER SW SIG WINDSHIELD WIPER MTR PARK SW SIG BLOWER SPEED FEEDBACK SIG WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ACCESSORY VOLT ACTIVE SIG BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER FRONT OF CENTER CONSOLE) BRN WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DEAD LOCK RLY CTRL DOOR DEAD LOCK RELAY DR LOCK CTRL DR LOCK CTRL (2) DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH FUEL FILL DOOR LOCK RELAY FUEL FILL DR LOCK RLY CTRL GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LF DR AJAR LH HDLP LO BEAM CTRL LIN BUS 3 LOCK SIG LOCK STATUS SIG LOGIC MOTOR STATUS NETWORK BUS 3 REAR BODY FUSE BLOCK RECEIVER CTRL RECEIVER LOW REF RECEIVER SIG RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RH HDLP LO BEAM CTRL RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SERIAL DATA (-) (1) SIG SW LOCK CTRL SW SIG SW UNLOCK CTRL TRANSMIT SIG UNLOCK CTRL UNLOCK SIG VIO/BLK WIRE VIO/YEL WIRE W/O THEFT DETERRENT WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

ACCESSORY VOLT ACTIVE SIG BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER FRONT OF CENTER CONSOLE) BRN WIRE BRN/GRN WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DEAD LOCK RLY CTRL DOOR DEAD LOCK RELAY DR LOCK CTRL DR LOCK CTRL (2) DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH FUEL FILL DOOR LOCK RELAY FUEL FILL DR LOCK RLY CTRL GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LF DR AJAR LH HDLP LO BEAM CTRL LIN BUS 3 LOCK SIG LOCK STATUS SIG LOGIC MOTOR STATUS NETWORK BUS 3 REAR BODY FUSE BLOCK RECEIVER CTRL RECEIVER LOW REF RECEIVER SIG RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RH HDLP LO BEAM CTRL RUN/CRANK IGN 1 VOLT SECURITY IND CTRL SERIAL DATA (-) (1) SIG SW LOCK CTRL SW SIG SW UNLOCK CTRL TRANSMIT SIG UNLOCK CTRL UNLOCK SIG VIO/BLK WIRE VIO/YEL WIRE W/O THEFT DETERRENT WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/GRN WIRE