Cadillac XT5 I facelift (2019-2024) serial data communication enable Wiring diagrams

2.0L TURBO 3.6L ACCESSORY WAKEUP ACCESSORY WAKEUP SERIAL DATA BATTERY SENSOR MODULE BLK WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/YEL WIRE ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT PUMP EVAPORATIVE EMISSION PURGE PUMP GRN WIRE GRN/BLK WIRE GRN/PPL WIRE HI SPD GMLAN HI SPEED GMLAN HI SPEED GMLAN SERIAL DATA (+) (2) HI SPEED GMLAN SERIAL DATA (+) 7 HI SPEED GMLAN SERIAL DATA (-) 1 HI SPEED GMLAN SERIAL DATA (-) 3 LIN BUS 1 LIN BUS 2 MULTI-FUNCTION INTAKE AIR SENSOR POWER STEERING CONTROL MODULE POWER SUPPLY TRANSFORMER SERIAL DATA SERIAL DATA (+) (3) SERIAL DATA (-) (1) SERIAL DATA (-) 7 SERIAL DATA 2 SERIAL DATA COMMUNICATION ENABLE TRANSMISSION CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) TRANSMISSION RANGE SELECTOR CONTROLS VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE

2.0L TURBO 3.6L BATT POS VOLT 1 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE SYSTEM CONTROL MODULE BRAKE MASTER CYLINDER COMM ENABLE GRN WIRE GRN/WHT WIRE GRY/GRN WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (+) 4 HI SPD GMLAN SERIAL DATA (+) 8 HI SPD GMLAN SERIAL DATA (+) 9 HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HI SPD GMLAN SERIAL DATA (-) 11 HI SPD GMLAN SERIAL DATA (-) 12 HI SPD GMLAN SERIAL DATA (-) 13 HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE INSTRUMENT PANEL FUSE BLOCK LO SPD GMLAN LO SPD GMLAN SERIAL DATA LO SPD GMLAN SERIAL DATA 2 LO SPD GMLAN SERIAL DATA 3 RED/WHT WIRE RUN/CRANK ING 1 VOLT SERIAL DATA SERIAL DATA (-) (1) SERIAL DATA (-) 9 SERIAL DATA 2 SERIAL DATA COMMUNICATION ENABLE SERIAL DATA GATEWAY MODULE (LOWER LEFT SIDE OF DASH) UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE YEL WIRE

BACKUP LAMP CONTROL BATT POS VOLT 32 BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIGNAL (-) EMERGENCY CALL BACKUP SPEAKER ETHERNET BUS (+) ETHERNET BUS 4 (-) ETHERNET BUS 6 (-) ETHERNET BUS 7 (-) GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GROUND 15 GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE INFO DISPLAY MODULE INFOTAINMENT INFOTAINMENT DISPLAY SIGNAL LOGIC LOW SPEED GMLAN SERIAL DATA 2 LVDS RADIO RADIO CONTROLS RED/BLU WIRE SERIAL DATA (-) 9 SERIAL DATA COMMUNICATION ENABLE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/VIO WIRE

AUDIO AMPLIFIER BATT POS VOLT 37 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (-) CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HIGH SPEED GMLAN SERIAL DATA (+) 9 HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LF MIDRANGE SPEAKER (+) CTRL LF MIDRANGER SPKR (-) CTRL LOW SPD GMLAN SERIAL DATA 2 LR SPEAKER (+) CTRL LR SUBWOOFER CTRL (-) LR SUBWOOFER SPEAKER CTRL (+) NOISE CANCELLATION MIC 1 FEEDBACK SIG NOISE CANCELLATION MIC 1 SIG NOISE CANCELLATION MIC 2 FEEDBACK SIG NOISE CANCELLATION MIC 2 SIG NOISE CANCELLATION MIC 3 FEEDBACK SIG NOISE CANCELLATION MIC 3 SIG NOISE CANCELLATION MIC 4 LOW REFE NOISE CANCELLATION MIC 4 SIG RED/YEL WIRE REPLICATED SIGNAL RF MIDRANGER SPEAKER CTRL (+) RF MIDRANGER SPEAKER SIGNAL (-) RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER SERIAL DATA COMMUNICATION ENABLE SIGNAL GROUND SUBWOOFER LO LEVEL AUDIO SIG (-) 2 SUBWOOFER LOW LEVEL AUDIO SIGNAL 2 SUBWOOFER SPEAKER UNDERHOOD FUSE BLOCK VIO/BLU WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

BACKUP LAMP CONTROL BATT POS VOLT 32 BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIGNAL (-) EMERGENCY CALL BACKUP SPEAKER ETHERNET BUS (+) ETHERNET BUS 4 (-) ETHERNET BUS 7 (-) GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GROUND 15 GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE INFO DISPLAY MODULE INFOTAINMENT INFOTAINMENT DISPLAY SIGNAL LOGIC LOW SPEED GMLAN SERIAL DATA 2 LVDS RADIO RADIO CONTROLS RED/BLU WIRE RED/YEL WIRE SERIAL DATA (-) 9 SERIAL DATA COMMUNICATION ENABLE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/VIO WIRE

AUDIO AMPLIFIER (UNDER FRONT OF CENTER FLOOR CONSOLE) BATT POS VOLT 37 BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ENTERTAINMENT REMOTE ENABLE SIGNAL ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (+) FRONT CENTER SPEAKER (+) CONTROL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HIGH SPEED GMLAN SERIAL DATA (+) 9 HOT AT ALL TIMES LEFT FRONT DOOR TWEETER SPEAKER LEFT REAR MIDRANGE SPEAKER (+) CTRL LEFT REAR TRIM PANEL SPEAKER LF MIDRANGE SPEAKER (+) CTRL LF MIDRANGER SPKR (-) CTRL LOW SPD GMLAN SERIAL DATA 2 LR SPEAKER (+) CTRL LR SUBWOOFER CTRL (-) LR SUBWOOFER SPEAKER CTRL (+) NCA WIRE NOISE CANCELLATION MIC 1 FEEDBACK SIG NOISE CANCELLATION MIC 1 SIG NOISE CANCELLATION MIC 2 FEEDBACK SIG NOISE CANCELLATION MIC 2 SIG NOISE CANCELLATION MIC 3 FEEDBACK SIG NOISE CANCELLATION MIC 3 SIG NOISE CANCELLATION MIC 4 LOW REFE NOISE CANCELLATION MIC 4 SIG RED/YEL WIRE REPLICATED SIGNAL RF MIDRANGER SPEAKER CTRL (+) RF MIDRANGER SPEAKER SIGNAL (-) RIGHT FRONT DOOR TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR MIDRANGE SPEAKER (-) CTRL RIGHT REAR SPEAKER (-) CTRL RIGHT REAR SPEAKER CONTROL (+) RIGHT REAR TWEETER SPEAKER SERIAL DATA COMMUNICATION ENABLE SHIELD SIGNAL GROUND SUBWOOFER LO LEVEL AUDIO SIG (-) 2 SUBWOOFER LOW LEVEL AUDIO SIGNAL SUBWOOFER LOW LEVEL AUDIO SIGNAL 2 SUBWOOFER SPEAKER UNDERHOOD FUSE BLOCK VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

AUDIO AMPLIFIER BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (-) CTRL FRONT CENTER SPEAKER(+) CTRL SUBWOOFER LOW LEVEL AUDIO SIGNAL 2 GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HIGH SPEED GMLAN SERIAL DATA (+) 9 HOT AT ALL TIMES LEFT FRONT DOOR SPEAKER LEFT INSTRUMENT PANEL SPEAKER LEFT REAR DOOR SPEAKER LF MIDRANGE SPEAKER CTRL (+) BATT POS VOLT 37 LF MIDRANGER SPKR (-) CTRL SIGNAL GROUND LOW SPD GMLAN SERIAL DATA 2 LR SPEAKER (+) CTRL LR SUBWOOFER CTRL (-) LR SUBWOOFER SPEAKER CTRL (+) NOISE CANCELLATION MIC 1 FEEDBACK SIG NOISE CANCELLATION MIC 1 SIG NOISE CANCELLATION MIC 2 FEEDBACK SIG NOISE CANCELLATION MIC 2 SIG NOISE CANCELLATION MIC 3 FEEDBACK SIG NOISE CANCELLATION MIC 3 SIG NOISE CANCELLATION MIC 4 LOW REFE NOISE CANCELLATION MIC 4 SIG RED/YEL WIRE REPLICATED SIGNAL RF MIDRANGER SPEAKER CTRL (+) RF MIDRANGER SPEAKER SIGNAL (-) RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR DOOR SPEAKER SERIAL DATA COMMUNICATION ENABLE SUBWOOFER LO LEVEL AUDIO SIG (-) 2 SUBWOOFER SPEAKER UNDERHOOD FUSE BLOCK VIO/BLU WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE

BACKUP LAMP CONTROL BATT POS VOLT 32 BLK WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRN WIRE BRN/BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DISPLAY DISPLAY SIGNAL (-) EMERGENCY CALL BACKUP SPEAKER ETHERNET BUS (+) ETHERNET BUS 4 (-) ETHERNET BUS 7 (-) GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GROUND 15 GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/WHT WIRE INFO DISPLAY MODULE INFOTAINMENT INFOTAINMENT DISPLAY SIGNAL LOGIC LOW SPEED GMLAN SERIAL DATA 2 LVDS RADIO RADIO CONTROLS RED/BLU WIRE RED/YEL WIRE SERIAL DATA (-) 9 SERIAL DATA COMMUNICATION ENABLE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/VIO WIRE

AUDIO AMPLIFIER (UNDER FRONT OF CENTER FLOOR CONSOLE) BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE CENTER INSTRUMENT PANEL SPEAKER COMPUTER DATA LINES SYSTEM ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (+) CONTROL FRONT CENTER SPEAKER(+) SUBWOOFER LOW LEVEL AUDIO SIGNAL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HIGH SPEED GMLAN SERIAL DATA (+) 9 HIGH SPEED GMLAN SERIAL DATA (-) 9 ENTERTAINMENT REMOTE ENABLE SIGNAL HOT AT ALL TIMES LEFT FRONT DOOR TWEETER SPEAKER LEFT REAR MIDRANGE SPEAKER (+) CTRL LEFT REAR TRIM PANEL SPEAKER LF MIDRANGE SPEAKER CTRL (+) BATT POS VOLT 37 LF MIDRANGER SPKR (-) CTRL SIGNAL GROUND LOW SPD GMLAN SERIAL DATA 2 LR SPEAKER (+) CTRL LR SUBWOOFER CTRL (-) LR SUBWOOFER SPEAKER CTRL (+) NCA WIRE NOISE CANCELLATION MIC 1 FEEDBACK SIG NOISE CANCELLATION MIC 1 SIG NOISE CANCELLATION MIC 2 FEEDBACK SIG NOISE CANCELLATION MIC 2 SIG NOISE CANCELLATION MIC 3 FEEDBACK SIG NOISE CANCELLATION MIC 3 SIG NOISE CANCELLATION MIC 4 LOW REFE NOISE CANCELLATION MIC 4 SIG RED/YEL WIRE REPLICATED SIGNAL RF MIDRANGER SPEAKER CTRL (+) RF MIDRANGER SPEAKER SIGNAL (-) RIGHT FRONT DOOR TWEETER SPEAKER RIGHT REAR DOOR SPEAKER RIGHT REAR MIDRANGE SPEAKER (-) CTRL RIGHT REAR SPEAKER (-) CTRL RIGHT REAR SPEAKER CONTROL (+) RIGHT REAR TWEETER SPEAKER SERIAL DATA COMMUNICATION ENABLE SHIELD SUBWOOFER LO LEVEL AUDIO SIG (-) 2 SUBWOOFER LOW LEVEL AUDIO SIGNAL SUBWOOFER LOW LEVEL AUDIO SIGNAL 2 SUBWOOFER SPEAKER UNDERHOOD FUSE BLOCK VIO/BLU WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

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