Cadillac CT6 I facelift (2018-2023) rear body fuse block Wiring diagrams

"ON" BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG DECKLID SILL PLATE LAMP GRN WIRE GRN/GRY WIRE GRY WIRE GRY/GRN WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INADVERTENT PWR CTRL INTR LP CTRL INTR LP DEFEAT SW SIG LED AMBIENT LIGHTING CTRL 1 LED AMBIENT LIGHTING CTRL 2 LEFT REAR COMPARTMENT COURTESY LAMP LOGIC MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE N/A OFF OVERHEAD CONSOLE MULTI- FUNCTION SWITCH POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF RIGHT REAR WHEELWELL) REAR BODY FUSE BLOCK REAR COMPARTMENT LID LP CTRL RED WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT REAR COMPARTMENT COURTESY LAMP SUPLY VOLT VIO/GRN WIRE WHT WIRE WHT/BRN WIRE WHT/YEL WIRE

3.6L 3.6L 4.2L TURBO 4.2L TURBO ACTIVE STEERING CONTROL MODULE BATTERY SAVER RELAY 1 BATTERY SAVER RELAY 2 BLK WIRE BODY CONTROL MODULE BRN WIRE COLLISION ALERT INDICATORS DATA LINK CONNECTOR DOOR DEAD LOCK RELAY DRIVER MONITORING SYSTEM CONTROL MODULE FUEL DOOR LOCK RELAY HEAD-UP DISPLAY HEAD-UP DISPLAY SWITCH HORN SWITCH IGNITION MAIN RELAY IGNITION MODE SWITCH INSTRUMENT CLUSTER INSTRUMENT PANEL COMPARTMENT DOOR UNLATCH ACTUATOR RELAY INSTRUMENT PANEL DIMMER SWITCH INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 LEFT FRONT INNER FLOOR COURTESY LAMP LEFT FRONT OUTER FLOOR COURTESY LAMP LEFT LOWER STEERING WHEEL CONTROLS SWITCH LEFT TRANSMISSION MANUAL SHIFT SWITCH LEFT UNDERHOOD FUSE BLOCK LEFT UPPER STEERING WHEEL CONTROLS SWITCH LOGIC MULTI-AXIS ACCELERATION SENSOR 2 NCA WIRE NIGHT VISION CAMERA WASHER PUMP RELAY PARK BRAKE CONTROL SWITCH REAR BODY FUSE BLOCK REAR DEFOGGER RELAY RETAINED ACCESSORY POWER RELAY RIGHT LOWER STEERING WHEEL CONTROLS SWITCH RIGHT TRANSMISSION MANUAL SHIFT SWITCH RIGHT UPPER STEERING WHEEL CONTROLS SWITCH SERIAL DATA GATEWAY MODULE STEERING COLUMN FRICTION CONTROL MODULE STEERING COLUMN LOCK MODULE LOGIC STEERING COLUMN POSITION CONTROL MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL ANGLE SENSOR MODULE STEERING WHEEL HEATER STEERING WHEEL HEATING CONTROL MODULE STEERING WHEEL LANE CENTERING INDICATORS TURN SIGNAL/ MULTI-FUNCTION SWITCH UNDERHOOD FUSE BLOCK W/ HEAD UP DISPLAY WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY

ACTIVE SAFETY CONTROL MODULE 1 ACTIVE SAFETY CONTROL MODULE 2 BATTERY SENSOR MODULE BLK WIRE BODY CONTROL MODULE EXTERIOR REAR COMPARTMENT LID UNLATCH SWITCH HANDS-FREE LIFTGATE SENSOR CONTROL MODULE HANDS-FREE LIFTGATE SENSOR LAMP LEFT BACKUP LAMP LEFT INNER TAIL- LAMP LEFT LICENSE PLATE LAMP LEFT REAR SHORT RANGE RADAR SENSOR MODULE LEFT SIDE OBJECT SENSOR MODULE LEFT TAIL LAMP ASSEMBLY LEFT UPPER AUXILIARY AIR TEMPERATURE DOOR ACTUATOR LIFTGATE CONTROL MODULE LOGIC MEMORY CARD RECEPTACLE MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK REAR COMPARTMENT LID UNLATCH RELAY REAR FOG LAMP REAR MIDDLE SHORT RANGE RADAR SENSOR MODULE REAR SHORT RANGE RADAR SENSOR MODULE RIGHT BACKUP LAMP RIGHT EXHAUST FLOW CONTROL VALVE RIGHT INNER TAIL- LAMP RIGHT LICENSE PLATE LAMP RIGHT REAR BRAKE PAD WEAR SENSOR RIGHT SIDE OBJECT SENSOR MODULE RIGHT UPPER AUXILIARY AIR TEMPERATURE DOOR ACTUATOR VIDEO PROCESSING CONTROL MODULE W/ FOG LAMP W/ OBSTACLE DETECTION SIDE ACTIVE SAFETY, COLLISION AVOIDANCE, MITIGATION W/ QUAD ZONE W/ STOP/ START SYSTEM W/O FOG LAMP W/O OBSTACLE DETECTION SIDE ACTIVE SAFETY, COLLISION AVOIDANCE, MITIGATION WINDSHIELD FRONT VIEW CAMERA

AUTO B+ VOLT BLK WIRE BLU WIRE BLU/GRY WIRE BLU/ORG WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DIM SW LO REF DIM SW SIG DOME LP OFF IND CTRL GARAGE DOOR OPENER GND INDICATOR DIM CTRL GRN WIRE HDLP SW PARK LP SIG HEAD HEAD-UP DISPLAY SWITCH HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT PANEL DIMMER SWITCH LED BACKLIGHT DIMM CTRL LEFT FRONT DOME/ READING LAMPS LOGIC OFF OVERHEAD CONSOLE MULTI- FUNCTION SWITCH PARK PARK BRAKE CONTROL SWITCH REAR BODY FUSE BLOCK RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT FRONT DOME/ READING LAMPS TURN SIGNAL/ MULTI-FUNCTION SWITCH W/ UNIVERSAL GARAGE DOOR WHT WIRE YEL WIRE

BLK/WHT WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE COAX GRN/BLK WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE HOT AT ALL TIMES LEFT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE NCA WIRE REAR AUDIO AMPLIFIER REAR BODY FUSE BLOCK REAR RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE RED/BRN WIRE RED/YEL WIRE RIGHT FRONT RADIO VOLUME COMPENSATOR INTERIOR NOISE MICROPHONE SUBWOOFER SPEAKER WHT/YEL WIRE WI-FI WLAN WIRELESS COMMUNICATION ANTENNA

AUDIO AMPLIFIER BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE CENTER CONSOLE SPEAKER CENTER INSTRUMENT PANEL SPEAKER CENTER SPEAKER I/P MOTOR DIAGNOSTIC SIGNAL CENTER SPEAKER LIMIT SWITCH DOWN SIGNAL CENTER SPEAKER LIMIT SWITCH UP SIGNAL CENTER SPEAKER O/P MOTOR DIRECTION SIGNAL CENTER SPEAKER O/P MOTOR SPEED SIGNAL GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/VIO WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT FRONT MID-RANGE SPEAKER (-) LOW REF LEFT FRONT SEAT LEFT SPEAKER (-) LOW REF LEFT FRONT SEAT LEFT SPEAKER CONTROL (+) LEFT FRONT SEAT RIGHT SPEAKER (-) LOW REF LEFT FRONT SEAT RIGHT SPEAKER CONTROL (+) LEFT FRONT SPEAKER CONTROL (+) 1 LEFT FRONT SPEAKER SIGNAL (-) 1 SIGNAL GROUND LEFT FRONT TWEETER SPEAKER (-) LOW REF LEFT FRONT TWEETER SPEAKER CONTROL (+) LEFT REAR DOOR SPEAKER LEFT REAR SPEAKER SIGNAL (-) LEFT REAR TWEETER SPEAKER LEFT REAR WINDOW SHELF SPEAKER LOGIC REAR BODY FUSE BLOCK RED/VIO WIRE RED/YEL WIRE RIGHT FRONT MID-RANGE SPEAKER (-) LOW REF RIGHT FRONT MID-RANGE SPEAKER CONTROL (+) RIGHT FRONT SEAT LEFT SPEAKER (-) LOW REF RIGHT FRONT SEAT LEFT SPEAKER CONTROL (+) RIGHT FRONT SEAT RIGHT SPEAKER (+) RIGHT FRONT SEAT RIGHT SPEAKER (-) LOW REF RIGHT FRONT TWEETER SPEAKER (-) LOW REF RIGHT FRONT TWEETER SPEAKER CONTROL (+) RIGHT REAR SPEAKER CONTROL (+) RIGHT REAR SPEAKER SIGNAL (-) RIGHT REAR WINDOW SHELF SPEAKER SPEAKER (-) LOW REF SPEAKER CONTROL SPEAKER CONTROL (-) 1 SPEAKER SIGNAL (-) 1 VIO/BRN WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/WHT WIRE

AUDIO AMPLIFIER BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BRN/BLK WIRE BRN/BLU WIRE COMPUTER DATA LINES SYSTEM CRANKSHAFT POSITION SENS REPLICATED SIG ETHERNET BUS 6 (-) FRONT CENTER SPEAKER (-) CTRL FRT CENTER SPKR (-) LO REF GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/BLU 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 REAR WINDOW SHELF SPEAKER LF SPEAKER (-) 2 LO REF LF SPEAKER (-) CTRL 1 LF SPEAKER (-) CTRL 2 LF SPEAKER SIG (-) 1 LH/RR SPEAKER CTRL (+) LH/RR SPEAKER SIG (-) LO REF BATT POS VOLT LOW SPEED GMLAN SERIAL DATA 2 LR MIDRANGE SPKR (+) CTRL LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MICROPHONE 1 LO REF MICROPHONE 1 SIG MICROPHONE 2 LO REF MICROPHONE 2 SIG MICROPHONE 3 LO REF MICROPHONE 3 SIG REAR BODY FUSE BLOCK RED/YEL WIRE RF SPEAKER (-) CTRL 1 RF SPEAKER (-) CTRL 2 RF SPEAKER SIG (-) 1 RF SPKR (-) 2 LO REF RIGHT FRONT DOOR SPEAKER RIGHT INSTRUMENT PANEL SPEAKER RIGHT REAR WINDOW SHELF SPEAKER RR MIDRANGE SPKR (+) CTRL RR MIDRANGE SPKR (-) LO REF RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SIG GND VIO/BLU WIRE W/ PREMIUM SURROUND AMPLIFIER WHT WIRE WHT/BLK WIRE WHT/GRN WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/WHT WIRE

3.6L 4.2L TURBO ACCY WAKE-UP SERIAL DATA AUTO STOP START IND CTRL AUTO STOP START SWITCH SIGNAL BATTERY POS VOLT BLK WIRE BLK/GRY WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE GMLAN SERIAL DATA - 1 GRN WIRE GRN/BLK WIRE GROUND GROUND 38 HI SPD GMLAN HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SERIAL DATA (-) (1) HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT IGN MODE SW VOLT IGNITION MODE SWITCH KEYLESS ENTRY CONTROL MODULE (RIGHT KICK PANEL) LOGIC LOW SPD GMLAN SERIAL DATA MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE PMRY FSD BATT POSI VOLT 1 PMRY FSD BATT POSI VOLT 10 PMRY FSD BATT POSI VOLT 3 PMRY FSD BATT POSI VOLT 6 POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF RIGHT REAR WHEELWELL) REAR BODY FUSE BLOCK RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RLY CTRL RUN/CRANK IGN 1 VOLT 8 SER DATA (-) (1) START SW 2 LOW REF START SW SIG 2 TRANSMISSION CONTROL MODULE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ HANDSFREE LANE FOLLOWING W/O HANDSFREE LANE FOLLOWING WHT WIRE YEL/VIO WIRE

1-BK AUXILIARY BATT POS VOLT BATT POS VOLT ENTERTAINMENT REMOTE ENABLE SIG BATTERY FUSE BLOCK BK DISPLAY SIG BK LVDS BK LVDS DISPLAY SIG BK LVDS REMOTE DISPLAY SIG BK USB USB SERIAL DATA BLK/WHT WIRE BLU/VIO WIRE BN LVDS AUXILIARY VIDEO SIG BRN WIRE BRN/GRY WIRE BRN/WHT WIRE BRN/YEL WIRE BU LVDS VIDEO SIG COMPUTER DATA LINES SYSTEM DRIVER SEATBACK VIDEO DISPLAY ENTERTAINMENT REMOTE ENABLE SIG ETHERNET BUS 3 (+) GRN/WHT WIRE GRY/GRN WIRE GY USB SERIAL DATA HEADPHONE LOW REF HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 2 ENERGIZED LF HEADPHONE SIG LOGIC AUDIO/VIDEO INPUT ADAPTER LOW SPEED GMLAN SERIAL DATA 2 LVDS LVDS 2-BK MEDIA DISC PLAYER NCA WIRE PASSENGER SEATBACK VIDEO DISPLAY POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK REAR SEAT AUDIO HEADPHONE COM SIG REAR SEAT AUDIO HEADPHONE LOW REF RED/BRN WIRE RED/GRY WIRE REMOTE 4 ENABLE SIG LF HEADPHONE SIG RF HEADPHONE SIG SIG GND SIGNAL GROUND USB W/ LUXURY SEAT W/O LUXURY SEAT

3.6L 4.2L TURBO BATT POS VOLT BATT POS VOLT LIN SERIAL DATA BUS 1 BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE CAMERA WASH SIG CAMERA WASH SWITCH COMPUTER DATA LINES SYSTEM DELAY SWITCH DRIVER INFORMATION CENTER DISPLAY FRONT WINDSHIELD WIPER SW HI SIG HDLP WASHER RLY CTRL GND (RAIN SENSOR) GND HI SPD GMLAN SERIAL DATA (+) 1 GRN/BRN WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 2 ENERGIZED INSTRUMENT CLUSTER INT LOW OFF INT LOW OFF HIGH LEFT UNDERHOOD FUSE BLOCK LOGIC LOW SPD GMLAN SERIAL DATA LOW WASHER FLUID IND CTRL MIST MIST HIGH MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE N/A NIGHT VISION CAMERA WASHER PUMP NIGHT VISION CAMERA WASHER PUMP RELAY POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE SPLY VOLT UNDERHOOD FUSE BLOCK VIO WIRE WASHER SWITCH WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WINDOW SHELF) (UNDER REAR WINDSHIELD WASHER FLUID LEVEL SWITCH WINDSHIELD WASHER PUMP WINDSHIELD WASHER PUMP RELAY WINDSHIELD WASHER RLY CTRL WINDSHIELD WASHER SW SIG WINDSHIELD WIPER MOTOR WINDSHIELD WIPER MTR PRK SW SIG WINDSHIELD WIPER MTR RLY COIL CTRL WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WINDSHIELD WIPER SW HI SIG WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG WINDSHIELD WIPER/WASHER SWITCH WIPER SWITCH YEL/BLU WIRE YEL/BRN WIRE