Cadillac XT4 I (2018-2023) instrument panel fuse block 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

BACKUP LP CTRL BATT POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) COMPUTER DATA LINES SYSTEM GRN WIRE GRN/WHT WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) 1 SIG GND HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT BACKUP LAMP LOGIC INSIDE REAR VIEW MIRROR RADIO/NAVIGATION SYSTEM RED/BLU WIRE RED/WHT WIRE RIGHT BACKUP LAMP TRANSMISSION CONTROL MODULE WHT 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

BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRAKE APPLY SENS LOW REF BRK APPLY SENS CTRL BRK APPLY SENS SIG COMPUTER DATA LINES SYSTEM GRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/YEL WIRE HAZARD SW SIG HAZARD SWITCH HAZARD SWITCH LEFT TURN SIG HAZARD SWITCH RIGHT TURN SIG HDLP SW PARK LAMP SIGNAL HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LEFT CORNERING LAMP CTRL LEFT HDLP BULB OUTAGE SIG LEFT PARK LAMP CTRL LEFT REAR FOG LAMP LF TURN SIG LAMP CTRL LICENSE PLATE LAMP LIFTGATE UNLATCH SWITCH LR STOP LAMP CTRL LR TURN SIG LAMP CTRL PUDDLE LAMP CTRL REAR FOG LAMP CTRL REAR FOG LAMP SW SIG REAR LICENSE LAMP CTRL REAR TURN LAMP FEEDBACK SIG RED/BLU WIRE RED/WHT WIRE RF TURN SIG LAMP CTRL RIGHT CORNERING LAMP CTRL RIGHT HDLP BULB OUTAGE SIG RIGHT PARK LAMP CTRL RR STOP LAMP CTRL RR TURN LAMP FEEDBACK SIG RR TURN SIG LAMP CTRL SIG GND STOP LAMP RELAY COIL CTRL VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE W/ POWER LIFTGATE W/O POWER LIFTGATE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/WHT WIRE

BLK WIRE BLK/BRN WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE SYSTEM CONTROL MODULE COMPUTER DATA LINES SYSTEM GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT FRONT SIDE MARKER LAMP LEFT INNER TAIL- LAMP LEFT LIFTGATE TAIL LAMP ASSEMBLY LEFT OUTER TAIL LAMP LEFT REAR TURN SIGNAL LAMP LEFT STOP LAMP LEFT TAIL LAMP ASSEMBLY LOGIC NETWORK BUS 31 PARK BRAKE SWITCH RED/VIO WIRE VIO WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WHT/YEL WIRE

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

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

AUXILIARY UNDERHOOD FUSE BLOCK BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) COMPUTER DATA LINES SYSTEM DATA 1 (+) GRN/VIO WIRE GRY/BRN WIRE HI SPD GMLAN SER HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT TRAILER LEFT TRAILER STOP/TURN SIGNAL LAMP RELAY NCA WIRE PARK LP RLY CTRL RED/BLU WIRE RED/WHT WIRE RED/YEL WIRE RIGHT TRAILER RIGHT TRAILER STOP/TURN SIGNAL LAMP RELAY SIG GND TRAILER CONNECTOR TRAILER PARK LAMPS RELAY TURN SIG LP CTRL UNDERHOOD FUSE BLOCK WHT WIRE YEL/GRY WIRE