Cadillac XT4 I (2018-2023) hot at all times Wiring diagrams

BATT POS BATT POS VOLT BK SCREEN DIS SIG BLK WIRE BLK/WHT WIRE BLU/GRN WIRE CAMERA VIDEO SIG COAX COAX OG CAM COAXIAL COMPUTER DATA LINES SYSTEM DISPLAY GND HI SPD GMLAN SER DATA (+)9 GRILLE FRONT VIEW CAMERA GRY/GRN WIRE HI SPD GMLAN SER DATA (-) 9 HOT AT ALL TIMES INFO DISPLAY MODULE INSTRUMENT PANEL FUSE BLOCK L-GN COAX CAMERA VIDEO SIG LEFT SIDE VIEW CAMERA LO SPEED GMLAN SERIAL DATA 2 LOGIC LVDS LVDS GY SCREEN DIS SIG POWER SUPPLY TRANSFORMER RADIO REAR VIEW CAMERA RED/BLU WIRE RED/VIO WIRE RED/YEL WIRE RIGHT SIDE VIEW CAMERA SIG GND SPLY VOLT 1 VIDEO PROCESSING CONTROL MODULE VIDEO SIG VOLT WHT/GRN WIRE

BATT POS VOLT BLK WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER OUTSIDE REAR VIEW MIRROR GLASS DRIVER OUTSIDE REAR- VIEW MIRROR DRIVER SIDE OBJECT DETECTION INDICATOR GRN WIRE GROUND GRY WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT SIDE OBJECT SENSOR MODULE LH SIDE LED CTRL LOW SPEED GMLAN SERIAL DATA PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER SIDE OBJECT DETECTION INDICATOR POWER SUPPLY TRANSFORMER RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RH SIDE LED CTRL RIGHT SIDE OBJECT SENSOR MODULE SIDE OBJ DETEC CAN SERIAL DATA (-) SIDE OBJECT DETECTION CAN SERIAL DATA (-) SUPPLY VOLTAGE 1 UNDERHOOD FUSE BLOCK WHT WIRE

ACC LED SIG ACTUATOR CTRL ACTUATOR RECEIVE SIG ACTUATOR TRANSMIT SIG AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES, CRUISE CONTROL SYSTEMS ANTI-LOCK BRAKES, ENGINE CONTROLS, TRANSMISSIONS SYSTEMS AUTO STOP START INDICATOR CTRL AUTO STOP START SW SIG BATT POS VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRN WIRE BRN/BLU WIRE BRN/WHT WIRE BRN/YEL WIRE COLUMN LOCK STATUS SIG COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC/BRAKE SIG DIMMER SW LOW REF DIMMER SW SIG DOME LP OFF INDICATOR CTRL DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DOOR LOCKS, ANTI-THEFT, SHIFT INTERLOCK SYSTEMS ENGINE CONTROLS, STARTING/CHARGING, TRANSMISSIONS SYSTEMS EXTERIOR LIGHTS, ANTI-THEFT, INTERIOR LIGHTS SYSTEMS GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/WHT WIRE GRY/YEL WIRE HAZARD SW SIG HDLP SW OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEADLAMP LOW BEAM RLY CTRL HEADLIGHTS SYSTEM HI SPD GMLAN SERIAL DATA (-) (1) HIGH BEAM AUTO ON/OFF SW SIG WIRELESS CHARGING SYSTEM FAULT INDICATOR CTRL HORN RLY CTRL HORNS SYSTEM INTERIOR LIGHTS SYSTEM HOT AT ALL TIMES IGN MODE SW MODE VOLT IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK INTERIOR LAMP CTRL INTERIOR LAMP DEFEAT SW SIG INTERIOR LIGHTS, ENGINE CONTROLS, STARTING/CHARGING, TRANSMISSIONS SYSTEMS INTERIOR LIGHTS, STARTING/CHARGING SYSTEMS LED AMBIENT LIGHTING CTRL 2 LED BACKLIGHT DIMMING CTRL LEFT CORNERING LP CTRL LEFT TRAILER TURN SIG LP CTRL LF TURN SIG LP CTRL LIN SERIAL DATA BUS 4 LOW SPD GMLAN SERIAL DATA LR STOP LP CTRL LR TURN SIG LP CTRL PARK LP RELAY CTRL POWER DISTRIBUTION SYSTEM REAR FOG LAMP SWITCH SIGNAL 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/WHT WIRE RED/YEL WIRE RF DRL CONTROL RIGHT CORNERING LP CTRL RIGHT TRAILER TURN SIG LP CTRL SECURITY IND CTRL SIG GND START LED SIG TRACTION CTRL SW SIG 1 VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE WIPER SW HI SIG WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS SYSTEM YEL WIRE YEL/GRY WIRE YEL/WHT WIRE

APP LOW REF 1 APP LOW REF 2 APP SIG (1) APP SIG (2) BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE POS SENS SIG BRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRK SIG ENG CTRL SENS LOW REF 2 ENGINE CONTROL MODULE (ENGINE COMPT, RIGHT SIDE OF BATTERY) GRN/WHT WIRE GROUND GRY WIRE HIGH SPD GMLAN SERIAL DATA (+) 1 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK LOGIC RED WIRE RED/GRN WIRE RED/WHT WIRE SET/COAST/RESUME/ ACCELERATE SW SIG SIG GND THROTTLE ACTUATOR CTRL CLOSE THROTTLE ACTUATOR CTRL OPEN THROTTLE POS SENS LOW REF THROTTLE POS SENS SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT 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

BACKUP LAMP CTRL 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 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 LO SPD GMLAN SER DATA 2 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 RF LOW LVL AUDIO SIG RR LOW LVL AUDIO SIG SER DATA SER DATA (+) 9 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 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

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

BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLU WIRE BLU/YEL WIRE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM FT PRK AID DIS CONTROL FT PRK LH CORNER SENS FT PRK LH MID SENS FT PRK RH CORNER SENS FT PRK RH MID SENS GMLAN SERIAL DATA 2 GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LED DISABLE SIG LEFT FRONT SIDE PARKING ASSIST SENSOR LEFT MIDDLE FRONT PARKING ASSIST SENSOR LEFT OUTER FRONT PARKING ASSIST SENSOR LF SUPPLEMENTAL OBJ SENS SIG LOW SPEED GMLAN SERIAL DATA LR CON OBJ SENS SIG LR MIDDLE OBJ SENS SIG LR SUPPLEMENTAL OBJECT SENS SIG OBJECT SENS CTRL OBJECT SENS LOW REF PARKING ASSIST CONTROL MODULE POWER SUPPLY TRANSFORMER RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RF SUPPLEMENTAL OBJ SENS SIG RIGHT FRONT SIDE PARKING ASSIST SENSOR RIGHT MIDDLE FRONT PARKING ASSIST SENSOR RIGHT OUTER FRONT PARKING ASSIST SENSOR RR CORNER OBJ SENS SIG RR MIDDLE OBJ SENS SIG RR SUPPLEMENTAL OBJECT SENS SIG SENS LOW REF SERIAL DATA COMMUNICATION ENABLE SUPPLY VOLTAGE 1 UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE W/O INTEGRATED BRAKE ASSIST WHT WIRE WHT/BLU WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE YEL/VIO WIRE YEL/WHT WIRE

ACCY WAKEUP SER DATA AUTO STOP START INDICATOR CTRL AUTO STOP START SW SIG BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (ENGINE COMPT, RIGHT SIDE OF BATTERY) GRN WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 INDICATOR DIMMING CTRL HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN MODE SW START LED SIG IGNITION MODE SWITCH INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE (FRONT OF CENTER FLOOR CONSOLE) LOW SPD GMLAN SERIAL DATA PASSIVE START SW 2 LOW REF PASSIVE START SW SIG 2 POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (UNDER FRONT OF CENTER FLOOR CONSOLE) RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RUN/CRANK IGN 1 VOLT SIG GND STARTER ENABLE RLY CTRL STARTER PINION SOL RLY CTRL UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE YEL/BLK WIRE YEL/VIO WIRE