Cadillac XT4 I (2018-2023) red/blu Wiring diagrams

5-VOLT REF 1 AUTO START/ STOP SWITCH AUTO START/STOP IND AUTO STOP START IND CTRL AUTO STOP START SWITCH SIG BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/RED WIRE BLU/VIO WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) COMPUTER DATA LINES COMPUTER DATA LINES SYSTEM DISPLAY LOGIC DRIVE MODE SELECT SWITCH DRIVER MODE SWITCH SIG ENGINE CONTROL MODULE ESA OFF SWITCH GMLAN SERIAL DATA - 1 GRN WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ILL INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT TRANSMISSION MANUAL SHIFT SWITCH LO SPD GMLAN SERIAL DATA LOGIC MODE RED/BLU WIRE RED/YEL WIRE RIGHT TRANSMISSION MANUAL SHIFT SWITCH STEERING WHEEL AIR BAG COIL SYSTEM TAP UP/TAP DOWN SWITCH SIG TRACTION CTRL SWITCH SIG 1 TRANSMISSION RANGE SELECTOR CONTROLS TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LEVER POSITION INDICATOR UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/VIO WIRE YEL WIRE

BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM COOLING FAN MOTOR ENGINE CONTROLS SYSTEM ENGINE COOLANT PUMP ENGINE COOLANT TEMPERATURE SENSOR 3 ENGINE COOLANT TEMPERATURE SENSOR 4 GRN/BLK WIRE HOT AT ALL TIMES LOGIC RADIATOR COOLANT TEMPERATURE SENSOR RED/BLU WIRE RED/BRN WIRE RIGHT SIDE OF RADIATOR) UNDERHOOD AUXILIARY FUSE BLOCK WHT WIRE YEL/BLK WIRE

BATT POS VOLT BLK/GRN WIRE BLK/WHT WIRE BRIGHTNESS GRN/BLK WIRE GY LVDS HEAD UP DISPLAY SIG HEAD-UP DISPLAY HEAD-UP DISPLAY SW LOW REF HEAD-UP DISPLAY SW SIG HEAD-UP DISPLAY SWITCH HOT AT ALL TIMES HUD INFO INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA BUS 12 LOGIC LVDS RED/BLU WIRE YEL/WHT 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

ACTIVE SAFETY CONTROL MODULE BATT POS BATT POS VOLT BATT POS VOLT LANE DEPARTURE WARNING IND CTRL PARKING ASSIST DISABLE LED SIG BLK WIRE BLK/WHT WIRE BLU/GRY WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FRONT OBJECT SENSOR CONTROL 2 GRN WIRE GRN/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING ASSIST IND LANE DEPARTURE WARNING ASSIST SWITCH LANE DEPARTURE WARNING DISABLE SW SIG LANE DEPARTURE WARNING IND LO SPD GMLAN SERIAL DATA LOGIC LOW SPD GMLAN SERIAL DATA 2 POWER SUPPLY TRANSFORMER RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE SIG GND SPLY VOLT 1 VOLT WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WINDSHIELD FRONT VIEW CAMERA

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

AM/FM AUXILIARY AUDIO INPUT BLK WIRE BLU WIRE BLU/BLK WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CELL/GPS COAX COMPUTER DATA LINES SYSTEM ENTERTAINMENT ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GRN/BLK WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HD/XM LOGIC LVDS RADIO RADIO ANTENNA AMPLIFIER RADIO AUDIO MUTE SIG REAR VIEW CAMERA RED/BLU WIRE RED/VIO WIRE REM ENABLE SIG USB USB SER DATA W/ ONSTAR W/O ONSTAR YEL WIRE YEL/BLK WIRE

BACKUP LAMP CTRL 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 LO SPD GMLAN SER DATA 2 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 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

AM/FM AUXILIARY AUDIO INPUT BATT POST VOLTAGE BK USB SERIAL DATA BLK WIRE BLK/WHT WIRE BRN/BLK WIRE BRN/BLU WIRE CAMERA COAXIAL VIDEO SIGNAL COAX COAX BK COAX BU COAX CU COAX OG COMPUTER DATA LINES SYSTEM DISPLAY DRIVER INFORMATION CENTER DISPLAY ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GPS/CELL GROUND GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE INFO DISPLAY MODULE INSTRUMENT CLUSTER LOGIC LOW SPD GMLAN LVDS LVDS GY USB SER DATA NAVIGATION SYSTEM RADIO RADIO ANTENNA AMPLIFIER RADIO/HVAC CONTROLS RED/BLU WIRE RED/VIO WIRE S-BOOND SERIAL DATA 2 USB USB SER DATA W/ ONSTAR W/O ONSTAR YEL WIRE