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

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

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 BRN/BLU 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 DRIVER INFORMATION CENTER DISPLAY ENG CTRL SENSS 5 VOLT REF (2) 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 COOLANT FLOW CONTROL VALVE ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ETHER NET BUS 7(+) ETHER NET BUS 7(-) GND GRN/BLK WIRE GRY/BLU WIRE HEATER CORE OUTLET TEMP SIG HI SPEED GMLAN SERIAL DATA (-) 1 HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN INSTRUMENT CLUSTER LOGIC LOW REF RUN/CRANK IGNITION 1 VOLTAGE SENSOR 2 SIG SIG GND TEMP SIG UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/RED WIRE YEL/BLK 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

"CHECK ENGINE" IND CTRL AJAR SW SIG AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRAKE FLUID LEVEL SENS SIG BRAKE FLUID LEVEL SWITCH BRAKE SYSTEM CONTROL MODULE BRN/BLU WIRE BRN/WHT WIRE BUS 3 COMPUTER DATA LINES SYSTEM DATA DATA BUS 4 DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR LOGIC ENGINE CONTROL MODULE ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LO REF (3) ENGINE CTRL SENS LO REF 1 ENGINE OIL LEVEL SWITCH ENGINE OIL PRESSURE SENSOR ENGINE OIL TEMPERATURE SENSOR FUEL LEVEL SENSOR FUEL PUMP DRIVER CONTROL MODULE FUEL PUMP, LEVEL SENSOR ASSEMBLY GRN/GRY WIRE GRN/YEL WIRE GRY WIRE HI SPD GMLAN SERIAL DATA (-) (1) HIGH SPD GMLAN SERIAL DATA (+) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT REAR DOOR LATCH ASSEMBLY LEFT REAR WINDOW SWITCH LOGIC LF DR AJAR LIN BUS 31 LOGIC LOW REF LOW REF 2 OIL LEVEL SENS LO REF OIL PRESSURE SENS SIG OIL TEMP SENS SIG OUTSIDE AMBIENT AIR TEMPERATURE SENS SIG PARK BRAKE SWITCH PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR LOGIC PRIMARY FUEL LEVEL SENSOR RED/VIO WIRE RF DR AJAR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH LOGIC SECONDARY FUEL LEVEL SENSOR SENSOR SIGNAL SERIAL DATA (-) 7 SW SIG VIO WIRE WHT WIRE YEL/BRN WIRE

ALERT LED CTRL BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE BRN/BLU WIRE COLLISION ALERT INDICATORS COLLISION ALERT SWITCH COMM ENABLE COMPUTER DATA LINES SYSTEM DAY LED CTRL ETHERNET BUS 7 (-) FORWARD COLLISION ALERT SWITCH GRN WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/WHT WIRE HI SPD GMLAN (-) 1 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 INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING ASSIST IND LANE DEPARTURE WARNING ASSIST SWITCH LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN SERIAL DATA LOGIC LOW SPEED GMLAN SERIAL DATA 2 LT BLU WIRE POWER SUPPLY TRANSFORMER RED WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE STEERING WHEEL AIR BAG COIL SUPPLY VOLTAGE 1 SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VIO WIRE VIO/GRY WIRE VOLT REF 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

AUDIO AMPLIFIER (UNDER FRONT OF CENTER FLOOR CONSOLE) BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM CRANKSHAFT POSI SENS REPLICATED SIG ENTERTAINMENT REMOTE ENABLE SIG ETHERNET BUS 6 (-) FF MIDRANGE SPEAKER (-) LOW REF FR SPEAKER CONTROL (+) FR SPEAKER SIG (-) FRONT CENTER SPEAKER (-) CTRL FRONT CENTER SPEAKER (-) LOW REF GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/YEL WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LF LOW LEVEL AUDIO (-) LOW REF LF LOW LVL AUDIO (-) LOW REF LF LOW LVL AUDIO SIG LF MIDRANGE SPEAKER (+) CTRL LF SPKR 1 (-) LF SPKR SIGNAL (-) 1 LR LOW LVL AUDIO SIG RR LOW LVL AUDIO SIG NOISE REDUCTION MICROPHONE 1 LOW REF NOISE REDUCTION MICROPHONE 1 SIG NOISE REDUCTION MICROPHONE 2 LOW REF NOISE REDUCTION MICROPHONE 2 SIG NOISE REDUCTION MICROPHONE 3 LOW REF NOISE REDUCTION MICROPHONE 4 RETURN NOISE REDUCTION MICROPHONE 3 SIG NOISE REDUCTION MICROPHONE 4 SIG RADIO AUDIO MUTE SIG RED/BRN WIRE RF LOW LVL AUDIO (-) LOW REF RF LOW LVL AUDIO SIG RF MIDRANGE SPEAKER (-) CTRL RF MIDRANGE SPEAKER (-) LOW REF RF SPEAKER (-) CTRL 1 RF SPKR SIG (-) (1) RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER RR LOW LEVEL AUDIO (-) LOW REF RR SPEAKER (+) CTRL RR SPEAKER SIG (-) VIO/BLU WIRE WHT WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/WHT 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

AUDIO AMPLIFIER BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) FRONT CENTER SPKR (-) LOW REF FRONT CENTER SPKR CONTROL (+) GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GROUND GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT FRONT DOOR SPEAKER LEFT FRONT TWEETER SPEAKER LEFT INSTRUMENT PANEL SPEAKER LF SPKR 1 (-) LF SPKR SIGNAL (-) 1 LF TWEETER SPKR CTRL (+) LF TWEETER SPKR CTRL (-) LO REF LO SPD GMLAN SER DATA 2 LR MIDRANGE SPKR (+) CTRL LR MIDRANGE SPKR - LO REF LR SPKR (-) CTRL LR SPKR SIGNAL (-) NOISE REDUCTION MICROPHONE 1 LOW REF NOISE REDUCTION MICROPHONE 1 SIGNAL NOISE REDUCTION MICROPHONE 2 LOW REF NOISE REDUCTION MICROPHONE 2 SIGNAL NOISE REDUCTION MICROPHONE 3 LOW REF NOISE REDUCTION MICROPHONE 3 SIGNAL NOISE REDUCTION MICROPHONE 4 RETURN NOISE REDUCTION MICROPHONE 4 SIGNAL RED/BRN WIRE REPLICATED SIGNAL RF SPEAKER SIG (-) 1 RF SPKR CONTROL (+) (1) RF TWEETER SPKR (-) LO REF RF TWEETER SPKR CTRL (+) RIGHT FRONT DOOR SPEAKER RIGHT FRONT TWEETER SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR COMPARTMENT SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR TWEETER SPEAKER RR SPKR (-) CTRL RR SPKR SIGNAL (-) VIO/BLU WIRE VIO/BRN WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/WHT WIRE