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

ACC WAKEUP SER DATA BATTERY FUSE BLOCK BATTERY POSITIVE VOLTAGE BLK WIRE BLU WIRE BLU/YEL WIRE BRAKE FLUID LEVEL SENS SIG BRAKE FLUID LEVEL SWITCH BRAKE SYSTEM CONTROL MODULE COMPUTER DATA LINES SYSTEM GRN/GRY WIRE GRN/VIO WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN SER DATA (-) 2 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED LEFT FRONT WHEEL SPEED SENSOR LEFT REAR WHEEL SPEED SENSOR LF WHEEL SPD SENS CTRL LF WHEEL SPD SENS SIG LOC INTERCONNECT NETWORK BUS 31 LR PARK BRAKE MOTOR APPLY CTRL LR PARK BRAKE MOTOR LOW REF LR WHEEL SPD SENS CTRL LR WHEEL SPD SENS SIG NCA WIRE RED/WHT WIRE RED/YEL WIRE RF WHEEL SPD SENS CTRL RF WHEEL SPD SENS SIG RIGHT FRONT WHEEL SPEED SENSOR RIGHT REAR WHEEL SPEED SENSOR RR PARK BRAKE MOTOR APPLY CTRL RR PARK BRAKE MOTOR LOW REF RR WHEEL SPD SENS CTRL RR WHEEL SPD SENS SIG RUN/CRANK IGNITION 1 VOLTAGE UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE YEL WIRE

ABS IND. BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRAKE PEDAL POSITION SENSOR (TOP OF BRAKE PEDAL ASSEMBLY) BRAKE WARNING IND BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POS SENS SIG COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRK SIG DRIVER INFORMATION CENTER DISPLAY DRIVER MODE SELECT SWITCH ENG CTRL SENS 5 VOLT REF 2 ENG CTRL SENS LOW REF 2 ENGINE CONTROL MODULE ESC IND ESC OFF IND GRN/VIO WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (-) 9 HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES IGN 1 VOLT INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT PARK BRAKE ACTUATOR LOGIC PARK BRAKE SWITCH RED/BLU WIRE RED/VIO WIRE RED/WHT WIRE RIGHT PARK BRAKE ACTUATOR SIG GND SIGNAL GROUND TRACTION CONTROL OFF IND TRACTION CTRL SW SIG 1 UNDERHOOD FUSE BLOCK (BETWEEN LEFT FRONT STRUT TOWER, BATTERY) VIO WIRE VIO/GRY WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE

2 WAY ACTIVE SAFETY BLK WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE DOWN DRIVER SEAT ADJUSTER SWITCH DRIVER SEAT FRONT VERTICAL MOTOR DRIVER SEAT HORIZONTAL MOTOR DRIVER SEAT LUMBAR SUPPORT MOTOR DRIVER SEAT REAR VERTICAL MOTOR DRIVER SEAT RECLINE MOTOR GRN/BRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE HOT AT ALL TIMES RED/VIO WIRE RWD UNDERHOOD FUSE BLOCK VIO WIRE W/ OBSTACLE DETECTION ENHANCED SIDE W/O OBSTACLE DETECTION ENHANCED SIDE YEL WIRE YEL/BLU WIRE

BATTERY POSITIVE VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LEFT REAR SUSPENSION POSITION SENSOR LF DAMPING SERVO CTRL LF STRUT POSI SENS LOW REF LF STRUT POSI SENS SIG LOGIC LOW SPEED GMLAN SERIAL DATA 2 LR DAMPING SERVO CTRL LR STRUT POSI SENS LOW REF LR STRUT POSI SENS SIG NCA WIRE RED/YEL WIRE RF DAMPING SERVO CTRL RF STRUT POSI SENS LOW REF RF STRUT POSI SENS SIG RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR DAMP SERVO CTRL SERIAL DATA COMM ENABLE SUSPENSION CONTROL MODULE UNDERHOOD FUSE BLOCK WHT WIRE WHT/BLU WIRE YEL/RED WIRE YEL/WHT WIRE

BATT POS VOLT BLK WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CONTENT THEFT DETERRENT SENSOR DISABLE SWITCH DATA BUS 4 DISABLE SIG DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE COURTESY LAMP DRIVER EXTERIOR DOOR HANDLE SWITCH FUEL FILL DOOR LOCK RELAY GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED LED CTRL LEFT FRONT DOOR HANDLE KEYLESS ENTRY ANTENNA LEFT REAR WINDOW SWITCH LOGIC LR DR AJAR NCA WIRE NETWORK BUS 1 PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE COURTESY LAMP PASSENGER EXTERIOR DOOR HANDLE SWITCH PPL RED WIRE RED/GRN WIRE RIGHT FRONT DOOR HANDLE KEYLESS ENTRY ANTENNA SW SIG ULTRASONIC INTRUSION SENSOR 1 ULTRASONIC INTRUSION SENSOR 2 UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE

BLK WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/GRN WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DATA BUS 4 DRIVER DOOR LATCH ASSEMBLY (W/ ELECTRICAL STEERING COLUMN LOCK) DRIVER WINDOW SWITCH ENGINE CONTROL MODULE FUEL FILL DOOR LOCK ACTUATOR GRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY WIRE HOOD AJAR SWITCH HOOD OPEN HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT REAR DOOR LATCH ASSEMBLY LF DR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR PASSENGER DOOR LATCH ASSEMBLY PASSENGER WINDOW MOTOR PPL RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE RF DR AJAR RIGHT REAR DOOR LATCH ASSEMBLY RIGHT REAR WINDOW SWITCH RR DR AJAR SERIAL DATA (-) (1) STATUS SIG SW SIG UNLOCK SIG VIO WIRE W/ REMOTE CONTROL FUEL FILLER DOOR LOCK WHT WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE

3/4 5 VOLT REF AJAR SW SIG 1 AJAR SW SIG 2 AJAR SW SIG 3 BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRN WIRE BRN/RED WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FACE SW SIG GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY WIRE GRY/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE HANDS-FREE CLOSURE RELEASE SENS SIG 1 HANDS-FREE CLOSURE RELEASE SENS LO REFR 1 HANDS-FREE CLOSURE RELEASE SENS SIG 2 HANDS-FREE CLOSURE RELEASE SENS LO REFR 2 HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HOT AT ALL TIMES INSTRUMENT CLUSTER INTERIOR LIFTGATE CONTROL SWITCH LATCH MTR CLOSE CTRL LATCH MTR OPEN CTRL LEFT LIFTGATE OBJECT SENSOR LIFTGATE CLOSE SWITCH LIFTGATE CONTROL MODULE LIFTGATE LATCH ASSEMBLY LIFTGATE MOTOR ASSEMBLY (UNDER LEFT SIDE OF LIFTGATE) LIFTGATE UNLATCH SWITCH LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA 2 LOWER HANDS-FREE LIFTGATE SENSOR MAX MTR CLOSE CTRL MTR OPEN CTRL MTR RELEASE CTRL 2 NCA WIRE NETWORK BUS 18 OBJ SENS SIG OFF ON/OFF SW SIG OPEN/CLOSE SW SIG POS SIG 1 POS SIG 2 REAR OPEN/ CLOSE SWITCH RED/BRN WIRE RED/VIO WIRE RED/WHT WIRE RIGHT LIFTGATE OBJECT SENSOR RR CLOSURE OPEN SW LED CTRL SW OPEN SIG UNDERHOOD FUSE BLOCK UPPER HANDS-FREE LIFTGATE SENSOR W/ HANDSFREE W/O HANDSFREE WHT WIRE WHT/BLK WIRE WHT/GRY WIRE YEL WIRE YEL/BLU WIRE

1-2, 3-4, 5-6, 7-8, 21-22, 23-24) AIR BAG IND AUTOMATIC LOCKING RETRACTOR SW LOW REF AUTOMATIC LOCKING RETRACTOR SW SIG BATT POSITIVE VOLT BLK WIRE BLU WIRE BLU/ORG WIRE BLU/YEL WIRE BRN/ORG WIRE COMPUTER DATA COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY DRV KNEE MOD HI CTRL DRV KNEE MOD LO CTRL GRN WIRE GROUND GRY/GRN WIRE GRY/ORG WIRE HI SPEED GMLAN SERIAL DATA (+) (2) HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER CENTER FLOOR CONSOLE) INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LINES SYSTEM LO SPD GMLAN SERIAL DATA LO SPEED GMLAN SERIAL DATA 2 LOGIC LOW SPEED GMLAN SERIAL DATA ORG/BLU WIRE ORG/BRN WIRE ORG/GRN WIRE ORG/VIO WIRE ORG/WHT WIRE PASS AIR BAG OFF INDICATOR CTRL PASS AIR BAG ON INDICATOR CTRL PASS IP MOD DISABLE SW LO REF PASS IP MOD DISABLE SW SIG PASS IP MOD STAGE 1 HI CTRL PASS IP MOD STAGE 1 LO CTRL PASS IP MOD STAGE 2 HI CTRL PASS IP MOD STAGE 2 LO CTRL PASS KNEE MOD HI CTRL PASS KNEE MOD LO CTRL PASS SEAT BELT INDICATOR CTRL PASSENGER AIR BAG DISABLE SWITCH PASSENGER INSTRUMENT PANEL AIR BAG PASSENGER KNEE AIR BAG PASSENGER PRESENCE MODULE RED/BRN WIRE SEAT BELT IND SEAT BELT IND 2 SERIAL DATA COMMUNICATION ENABLE SHORTING BAR SIG GROUND STEERING WHEEL AIR BAG STEERING WHEEL AIR BAG COIL STEERING WHEEL MOD STAGE 1 HI CTRL STEERING WHEEL MOD STAGE 1 LO CTRL STEERING WHEEL MOD STAGE 2 HI CTRL STEERING WHEEL MOD STAGE 2 LO CTRL VIO/ORG WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/ORG WIRE YEL/ORG WIRE

AUTO BATT POSITIVE VOLT BLK WIRE BLK/ORG WIRE BLK/WHT WIRE BLU WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BUS 3 COMPUTER DATA LINES SYSTEM DATA DRIVER DOOR LATCH ASSEMBLY DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE DRIVER WINDOW MOTOR DRV SEAT BELT SW LOW REF DRV SEAT BELT SW SIG GRN WIRE GRN/YEL WIRE GRY WIRE HDLP SW HDLPS OFF SIG CTRL HDLP SW ON SIG HDLP SW PARK LAMP SIG HEAD HIGH SPD GMLAN SERIAL DATA (+) 1 HIGH SPD GMLAN SERIAL DATA (-) 2 INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE LF DR AJAR LOGIC NCA WIRE OFF ORG/BRN WIRE ORG/VIO WIRE PARK PASS SEAT BELT SW SIG PASS SEAT BELT SW SIG LOW REF PASSENGER DOOR LATCH ASSEMBLY PASSENGER SEAT BELT SWITCH PASSENGER SEAT BELT BUCKLE PASSENGER WINDOW MOTOR RED/GRN WIRE RF DR AJAR SHORTING BAR SW SIG TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ ELECTRICAL STEERING COLUMN LOCK WHT WIRE

BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR ENABLE ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE EXHAUST CAMSHAFT POSITION ACTUATOR SOLENOID VALVE EXHAUST CAMSHAFT PROFILE ACTUATOR POSITION SENSOR 1 EXHAUST CAMSHAFT PROFILE ACTUATOR POSITION SENSOR 2 FUEL PRESSURE, TEMPERATURE SENSOR GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR 2 INTAKE CAMSHAFT POSITION ACTUATOR SOLENOID VALVE INTAKE CAMSHAFT PROFILE ACTUATOR POSITION SENSOR 1 INTAKE CAMSHAFT PROFILE ACTUATOR POSITION SENSOR 2 LOGIC NCA WIRE POWERTRAIN SENS BUS TRANSMISSION RANGE SELECTOR CONTROLS VIO WIRE VIO/BLU WIRE VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE