Cadillac CT6 I (2016-2019) power supply transformer Wiring diagrams

ABS IND. AUTO HOLD SW SIG BRAKE APPLY SENS LOW REF AUTO- HOLD BATT POSITIVE VOLT BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BCM 1 FUSE BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRAKE APPLY SENS CTRL BRAKE BOOSTER VACUUM SENSOR BRAKE IND BRAKE PEDAL POSITION SENSOR (ON BRAKE FLUID MASTER CYLINDER) BRAKE POSITION SENS LOW REF BRAKE POSITION SENS SIG BRAKE VACUUM SENS SIG CENTER CONSOLE MULTI-FUNCTION SWITCH COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC BRAKE SIG DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ESC IND ESC OFF IND FUSE 7 GRN/BLK WIRE HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (+) (1) HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK RED/GRY WIRE RED/VIO WIRE SIG GND TCS OFF IND TRACTION CTRL SW SIG 1 BRAKE APPLY SENS SIG TRACTION OFF W/ STOP/START SYSTEM W/O STOP/START SYSTEM 2.0L TURBO 3.6L, 3.0L TURBO WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL/RED WIRE YEL/VIO WIRE

AIR QUALITY SENS SIG AUXILIARY AIR TEMP SENS SIG BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLOWER MOTOR SPEED CTRL BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/BLK WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/YEL WIRE CABIN HEATER COOLANT MOTOR CTRL CABIN HEATER COOLANT MOTOR FEEDBACK COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DISPLY FUSE DUAL ZONE DUCT CENTER CONSOLE AUXILIARY AIR TEMPERATURE SENSOR DUCT LEFT LOWER AUXILIARY AIR TEMPERATURE SENSOR DUCT LEFT UPPER AUXILIARY AIR TEMPERATURE SENSOR DUCT RIGHT LOWER AUXILIARY AIR TEMPERATURE SENSOR DUCT RIGHT UPPER AUXILIARY AIR TEMPERATURE SENSOR ELEC VARIABLE DISPLACEMENT CTRL ELEC VARIABLE DISPLACEMENT SPLY FRT BLWR FUSE FUSE 7 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC CONTROL MODULE HVAC FUSE HYBRID EXCEPT HYBRID INSIDE AIR TEMP SENS SIG INSTRUMENT PANEL FUSE BLOCK IP BODY IGN FUSE J251 (2.0L PLUG-IN HYBRID) LOW SPEED GMLAN SERIAL DATA LOWER AIR TEMP SENS SIG COOLANT TEMP SIG AUXILIARY AIR TEMP SENS SIG POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR BLOWER MOTOR SPEED CTRL REAR DEFOG RLY CTRL RED/BLU WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLTAGE SENS LOW REF SERIAL DATA BUS 19 SERIAL DATA BUS 9 SOLAR SENS DRIVER SIG SOLAR SENS LOW REF UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE YEL WIRE

"ON" BATT POS VOLT BATTERY FUSE BLOCK BCM 1 FUSE BCM 2 FUSE BCM 6 FUSE BCM 7 FUSE BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG DECKLID SILL PLATE LAMP FUSE 3 FUSE 7 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 OFF OVERHEAD CONSOLE MULTI- FUNCTION SWITCH POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER 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

BATT POS VOLT BATTERY FUSE BLOCK BCM 1 FUSE BCM 2 FUSE BCM 3 FUSE BCM 4 FUSE BCM 6 FUSE BCM 7 FUSE BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG COMPUTER DATA LINES SYSTEM FRONT TURN LAMP FEEDBACK SIG FUSE 7 FUSE 3 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GROUND GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD SWITCH SIG HDLP RELAY COIL CTRL HDLP SWITCH PARK LAMP SIG HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LEFT CORNERING LAMP RELAY CTRL LEFT PARK LAMP CTRL LF DRL CTRL LF TURN SIG LAMP CTRL LF TURN SIG SWITCH SIG LH HEADLAMP RLY CTRL LR STOP LAMP CTRL LR TURN SIG LAMP CTRL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER PUDDLE LAMP CTRL REAR BODY FUSE BLOCK REAR LICENSE LAMP CTRL REAR TURN LAMP FEEDBACK SIG RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RF DRL CTRL RF TURN LAMP FEEDBACK SIG RF TURN SIG LAMP CTRL RF TURN SIG SWITCH SIG RIGHT CORNERING LAMP RELAY CTRL RIGHT PARK LAMP CTRL RR STOP LAMP CTRL RR TURN LAMP FEEDBACK SIG RR TURN SIG LAMP CTRL SPLY VOLT STOP LAMP RELAY COIL CTRL VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLK WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BRN WIRE

ACTIVE SAFETY CONTROL MODULE 1 ACTIVE SAFETY CONTROL MODULE 2 AUDIO AMPLIFIER AUDIO/ VIDEO INPUT ADAPTER BATTERY CHARGER BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE CARGO ACCESSORY POWER RECEPTACLE DRIVER SEATBACK VIDEO DISPLAY EXTERIOR REAR COMPARTMENT LID UNLATCH SWITCH HANDS-FREE LIFTGATE SENSOR CONTROL MODULE LEFT BACKUP LAMP LEFT FRONT AUDIO AMPLIFIER 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 PASSENGER SEATBACK VIDEO DISPLAY POWER SUPPLY TRANSFORMER RADIO REAR AUDIO AMPLIFIER 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 REAR VIEW CAMERA RIGHT BACKUP LAMP RIGHT FRONT AUDIO AMPLIFIER RIGHT LICENSE PLATE LAMP RIGHT SIDE OBJECT SENSOR MODULE RIGHT UPPER AUXILIARY AIR TEMPERATURE DOOR ACTUATOR VIDEO PROCESSING CONTROL MODULE W/ ALL AROUND VISION CAMERA W/ AUDIOPHILE W/ LUXURY SEAT W/ OBSTACLE DETECTION SIDE ACTIVE SAFETY, COLLISION AVOIDANCE, MITIGATION W/ QUAD ZONE W/ STOP/ START SYSTEM W/O LUXURY SEAT W/O OBSTACLE DETECTION SIDE ACTIVE SAFETY, COLLISION AVOIDANCE, MITIGATION WHT WIRE

BATTERY FUSE BLOCK BLK WIRE COMPUTER DATA LINES SYSTEM DISPLY FUSE DRIVER WINDOW SWITCH FUSE 3 FUSE 7 GRN/BLK WIRE GRN/WHT WIRE GRN/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 IP BODY IGN FUSE LEFT LOWER STEERING WHEEL CONTROLS SWITCH LEFT REAR SEAT HEATING/VENTING/ COOLING SWITCH LEFT UPPER STEERING WHEEL CONTROLS SWITCH LOGIC PASSENGER AIR BAG DISABLED INDICATOR POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE RIGHT LOWER STEERING WHEEL CONTROLS SWITCH RIGHT REAR SEAT HEATING/VENTING/ COOLING SWITCH RIGHT UPPER STEERING WHEEL CONTROLS SWITCH SUPLY VOLT UNDERHOOD FUSE BLOCK VIO/GRY WIRE WHT WIRE YEL/BLK WIRE

AUXILIARY AUDIO INPUT B+ VOLT BATT POS VOLT BATTERY FUSE BLOCK BK AM/FM BLK/WHT WIRE BLK/YEL WIRE COAX COMPUTER DATA LINES SYSTEM CU HD/XM FUSE 3 GMLAN SERIAL DATA LO SPD GMLAN SERIAL DATA 2 GRN/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 2 ENERGIZED INFOTAINMENT CONTROL TOUCHPAD INSTRUMENT PANEL FUSE BLOCK LEFT RADIO ANTENNA AMPLIFIER LO REF LOGIC MOST CONTROL MOST SERIAL DATA (+) NETWORK SERIAL DATA BUS 10 POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RADIO RADIO FUSE REAR BODY FUSE BLOCK REAR WINDOW ANTENNA RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RFR RIGHT RADIO ANTENNA AMPLIFIER SIG GND TELEPHONE VOICE SIG USB WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

BACK BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE COMPUTER DATA LINES SYSTEM DISPLAY DISPLY FUSE FORWARD/ GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE INFO DISPLAY MODULE INFOTAINMENT DISPLAY SIG INSTRUMENT PANEL FUSE BLOCK LDW FUSE LED DIMMING SIG LOGIC LOW SPD GMLAN LVDS MEDIA DISC PLAYER MEDIA DISC PLAYER (W/O VIDEO SYSTEM) MOST CONTROL NAVIGATION SYSTEM NETWORK BUS 10 NETWORK BUS 5 NETWORK DATA BUS 12 POS VOLT POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RADIO FAVORITE BACK SIG RADIO FAVORITE FORWARD SIG RADIO VOLUME DOWN SIG RADIO VOLUME UP SIG RED/BLU WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT UPPER STEERING WHEEL CONTROLS SWITCH SEEK DOWN SEEK UP SELECT SER DATA SER DATA (+) 2 SIG GND SIG GROUND STEERING WHEEL AIR BAG COIL STR WHL FUSE VIO/WHT WIRE VOL (-) WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BLK WIRE YEL/BLU WIRE

1-BK 2-BK LVDS AUDIO COMM SIG 2 LO REF 1 AUDIO SIG 1 AUXILIARY BU LVDS VIDEO SIG BATT POS VOLT BATT POS VOLT ENTERTAINMENT REMOTE ENABLE SIG BATT POS VOLT REMOTE MEDIA EJECT 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 BN LVDS AUXILIARY VIDEO SIG BRN WIRE COMM SIG 2 COMPUTER DATA LINES SYSTEM DRIVER SEATBACK VIDEO DISPLAY ENTERTAINMENT REMOTE ENABLE SIG FUSE 3 GMLAN SERIAL DATA GRN WIRE GRN/BLU WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE GY LVDS GY USB USB SERIAL DATA HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 2 ENERGIZED INSTRUMENT PANEL FUSE BLOCK LDW FUSE LH AUXILIARY AUDIO SIG 1 LOGIC AUDIO/VIDEO INPUT ADAPTER LOGIC INFO DISPLAY MODULE LOGIC MEDIA DISC EJECT SWITCH LVDS LVDS 2-BK LVDS GY USB SERIAL DATA MEDIA DISC PLAYER MOST CONTROL NCA WIRE PASSENGER SEATBACK VIDEO DISPLAY POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RADIO FUSE REAR BODY FUSE BLOCK RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE REMOTE MEDIA EJECT SIG RH AUXILIARY AUDIO SIG 1 RSE DISP FUSE SERIAL DATA SERIAL DATA (+) SIG GND SERIAL DATA BUS 10 SIG GND UNDERHOOD FUSE BLOCK USB USB SERIAL DATA VIO/GRY WIRE W/ LUXURY SEAT W/O LUXURY SEAT WHT WIRE WHT/GRN WIRE WHT/VIO WIRE YEL WIRE

BATT POS VOLT BATT POS VOLT LIN SERIAL DATA BUS 1 BATTERY FUSE BLOCK BCM 1 FUSE BCM 2 FUSE 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 FUSE 3 GND HI SPD GMLAN SERIAL DATA (+) 1 GRN/BRN WIRE GRY WIRE GRY/GRN WIRE GRY/VIO WIRE HEAD LINER FUSE 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 LOGIC LOW SPD GMLAN SERIAL DATA LOW WASHER FLUID IND CTRL MIST MIST HIGH NIGHT VISION CAMERA WASHER PUMP NIGHT VISION CAMERA WASHER PUMP RELAY POWER SUPPLY TRANSFORMER RAIN SENSOR REAR BODY FUSE BLOCK RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE SPLY VOLT UNDERHOOD FUSE BLOCK VIO WIRE WASH FUSE WASHER SWITCH WHT WIRE WHT/BLK WIRE WHT/VIO WIRE 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 WPR FRT FUSE YEL/BLU WIRE YEL/BRN WIRE