Cadillac CT6 I (2016-2019) except hybrid hybrid Wiring diagrams

1/+ 2.0L 3.0L TURBO 3.6L 3.6L, 3.0L TURBO A/C COMPRESSOR A/C EVAPORATOR TEMPERATURE SENSOR A/C PRESS AFTER BOIL AIR INLET DR STEPPER MTR CTRL 1 AIR INLET DR STEPPER MTR CTRL 2 AIR INLET DR STEPPER MTR CTRL 3 AIR INLET DR STEPPER MTR CTRL 4 AIR RECIRCULATION DOOR ACTUATOR AIR TEMP DR CTRL LOW REF AMBIENT BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/RED WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE CLUTCH RLY CTRL COMPUTER DATA LINES SYSTEM COOLING FAN CTRL SIG DUCT LEFT LOWER AIR TEMPERATURE SENSOR DUCT LEFT UPPER AIR TEMPERATURE SENSOR ECT ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR EVAP CORE TEMP SENS SIG EXCEPT HYBRID HYBRID GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/WHT WIRE HEATER RLY CTRL HVAC CONTROL MODULE HVAC MOTOR CTRL INTERCOLLER LEFT AIR TEMPERATURE DOOR ACTUATOR LEFT MODE DOOR ACTUATOR LOWER LEFT AIR TEMP SENS SIG LOWER RIGHT AIR TEMP SENS SIG MODE DR STEPPER MTR CTRL 1 MODE DR STEPPER MTR CTRL 2 MODE DR STEPPER MTR CTRL 3 MODE DR STEPPER MTR CTRL 4 PUMP RELAY CTRL SENS SIG SER DATA SIG GND SUPERCHARGER TEMP DR STEPPER MTR CTRL 1 TEMP DR STEPPER MTR CTRL 2 TEMP DR STEPPER MTR CTRL 3 TEMP DR STEPPER MTR CTRL 4 UPPER LEFT AIR TEMP SENS SIG UPPER MODE VALVE MOTOR CTRL UPPER RIGHT AIR TEMP SENS SIG VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/YEL WIRE YEL WIRE YEL/BLK WIRE YEL/GRN WIRE

2.0L 3.0L TURBO 3.6L 3.6L, 3.0L TURBO AUXILIARY UNDERHOOD FUSE BLOCK BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE CHARGE AIR COOLER COOLANT PUMP COMPUTER DATA LINES SYSTEM COOL FAN FUSE COOL PUMP/ COIL ODD FUSE COOLING FAN CTRL SIG COOLING FAN MOTOR (BEHIND RADIATOR) COOLING FAN SENS SIG COOLING FAN SPD SIG DRIVER INFORMATION CENTER DISPLAY ECT SENS SIG ECT SIG GND ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR EXCEPT HYBRID HYBRID GMLAN GRN WIRE HOT AT ALL TIMES HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HYBRID/EV POWERTRAIN CONTROL MODULE 2 INSTRUMENT CLUSTER J172 (3.6L TURBO) LOGIC LOW SPD PPL RED/YEL WIRE SER DATA (-) (1) SERIAL DATA SIG GND SUPERCHARGE INTERCOOLER PUMP RELAY CTRL UNDERHOOD FUSE BLOCK VIO/BLU WIRE WHT WIRE

ACCELERATOR PEDAL POSITION SENSOR AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/YEL WIRE BRAKE PEDAL POSITION SENSOR BRN/BLK WIRE BRN/RED WIRE COMPUTER DATA LINES SYSTEM CRUISE IND DRIVER INFORMATION CENTER DISPLAY EXCEPT HYBRID HYBRID GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/GRN WIRE IN SPD SIG HI SPD GMLAN DATA (-) 1 HI SPD GMLAN DATA (+) 1 INSTRUMENT CLUSTER LOGIC LOW SPD GMLAN SERIAL DATA OUT SPD SIG RED WIRE TRANS INTERMEDIATE SPD SIG TRANS POS SENS A TRANS POS SENS B TRANSMISSION CONTROL MODULE TRANSMISSION INPUT SHAFT SPEED SENSOR TRANSMISSION INTERMEDIATE SHAFT SPEED SENSOR TRANSMISSION OUTPUT SHAFT SPEED SENSOR TRANSMISSIONS SYSTEM VIO WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL/BLU WIRE YEL/GRN WIRE YEL/WHT WIRE

BATT POS VOLT BATT POS VOLT BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE COMPUTER DATA LINES SYSTEM DATA DISPLY FUSE EXCEPT HYBRID HYBRID FUSE 3 GRN/BLK WIRE GROUND GRY/VIO WIRE GY LVDS HUD SIG HEAD-UP DISPLAY HEAD-UP DISPLAY SWITCH HEADLAMP ON HOT AT ALL TIMES HUD HUD SIG HUD SW LOW REF HUD SW SIG INFO INSTRUMENT PANEL FUSE BLOCK LIN SERIAL DATA BUS 12 LOGIC INSTRUMENT CLUSTER LVDS MOST SERIAL POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RED WIRE RED/BLU WIRE RED/GRY WIRE RED/WHT WIRE WHT WIRE WHT/GRN WIRE YEL WIRE

BATT POS VOLT BATT POS VOLT BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLU/VIO WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY EXCEPT HYBRID HYBRID FUSE 3 GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK L-GY LVDS NIGHT VISION SIG LVDS LOGIC LVDS LVDS BU LVDS L-GY MOST SER DATA (+) NIGHT VISION CAMERA NIGHT VISION CAMERA CONTROL MODULE NIGHT VISION SIG POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE SENS CTRL 2 SER DATA (-) 4 VPM NV FUSE WHT WIRE WHT/GRN WIRE

A/C COMPRESSOR A/C COMPRESSOR CLUTCH RELAY AC CLTCH FUSE AUXILIARY HEATER COOLANT PUMP AUXILIARY HEATER COOLANT PUMP RELAY BATTERY ENERGY CONTROL MODULE HYBRID/EV BATTERY PACK BLK WIRE BLU WIRE BLU/VIO WIRE BODY CONTROL MODULE BRAKE BOOSTER CONTROL MODULE COOL PUMP FUSE ELECTRONIC BRAKE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY EXCEPT HYBRID HYBRID FPPM FUSE FROM CHCM/SPARE FUSE (DIAGRAM 1 OF 9) FROM UNDERHOOD AUXILIARY FUSE BLOCK (DIAGRAM 1 OF 9) FRONT SEAT HEATING CONTROL MODULE FRT HTD SEAT FUSE FUEL PUMP DRIVER CONTROL MODULE GRN/VIO WIRE HDLP LVLG FUSE HEADLAMP HIGH BEAM RELAY HEADLAMP RELAY HORN RELAY HVAC CONTROL MODULE HYBRID/EV POWERTRAIN CONTROL MODULE 1 POWER INVERTER MODULE HYBRID/EV POWERTRAIN CONTROL MODULE 2 IGNITION MAIN RELAY INSTRUMENT CLUSTER IP BODY IGN FUSE LEFT CORNERING LAMP RELAY LOGIC LOGIC COLLISION ALERT INDICATORS NCA WIRE NIGHT VISION CAMERA WASHER PUMP RELAY PASSENGER AIR BAG DISABLED INDICATOR REAR SEAT HEATING CONTROL MODULE RED WIRE RED/GRY WIRE RED/WHT WIRE RIGHT CORNERING LAMP RELAY RR HTD SEAT FUSE STARTER PINION SOLENOID ACTUATOR RELAY STEERING COLUMN LOCK MODULE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER FUSE HOLDER STEERING WHEEL HEATING CONTROL MODULE STR COL LK FUSE STRTR 1 FUSE TPIM 1 FUSE TRANS IGN FUSE TRANSFER CASE CONTROL MODULE TRANSMISSION CONTROL MODULE VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE W/ LUXURY SEATS W/O LUXURY SEATS W/ START/ STOP SYSTEM W/O HEAD-UP DISPLAY WASH FUSE WINDSHIELD WASHER PUMP RELAY WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WPR FRT FUSE

AUXILIARY HVAC CONTROLS BCM 1 FUSE BCM 7 FUSE BODY CONTROL MODULE DR MIR FUSE DRIVER SEAT MEMORY CONTROL MODULE EMPTY FUSE EVAP LEAK FUSE EVAPORATIVE EMISSION SYSTEM LEAK DETECTION PUMP ASSEMBLY EVAPORATIVE EMISSION VENT SOLENOID VALVE EXCEPT HYBRID HYBRID FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 9) FROM BATTERY SAVER RELAY 2 (DIAGRAM 5 OF 9) FROM POWER SUPPLY TRANSFORMER (DIAGRAM 1 OF 9) FRT SEAT FUSE INTERIOR REAR COMPARTMENT LID UNLATCH SWITCH LEFT FRONT AUDIO AMPLIFIER LEFT REAR SEAT HEATING/ VENTING/ COOLING SWITCH LEFT REAR SEAT MEMORY CONTROL MODULE LF SUB FUSE LOGIC DRIVER SEAT ADJUSTER SWITCH LOGIC DRIVER WINDOW SWITCH LOGIC LEFT REAR SEAT ADJUSTER SWITCH LOGIC PASSENGER SEAT ADJUSTER SWITCH LOGIC PASSENGER WINDOW SWITCH LOGIC RIGHT REAR SEAT ADJUSTER SWITCH LT FRT SEAT FUSE LT REAR SEAT FUSE MIRROR CONTROL MODULE PARKING ASSIST CONTROL MODULE PASSENGER SEAT MEMORY CONTROL MODULE PEPS BATT FUSE R SUB FUSE REAR AUDIO AMPLIFIER RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RF SEAT FUSE RIGHT REAR SEAT HEATING/ VENTING/ COOLING SWITCH RIGHT REAR SEAT MEMORY CONTROL MODULE RR SEAT FUSE RT REAR SEAT FUSE SEAT ADJUSTMENT SW FUSE TCM FUSE TO KEYLESS ENTRY CONTROL MODULE (DIAGRAM 9 OF 9) TRANSMISSION CONTROL MODULE UPA FUSE W/ AUDIOPHILE W/ LUXURY SEATS W/ LUXURY, REAR HEATED SEATS

2.0L TURBO, 2.0L PLUG-IN HYBRID 3.0L TURBO, 3.6L AIR QUALITY SENSOR BCM 2 FUSE BODY CONTROL MODULE CAMERA FUSE DRIVER BACK SEAT BLOWER ASSEMBLY DRIVER CUSHION SEAT BLOWER ASSEMBLY ECM IGN FUSE ENGINE CONTROL MODULE EXCEPT HYBRID HYBRID FROM ACCESSORY RELAY (DIAGRAM 5 OF 9) FROM BATTERY FUSE BLOCK (DIAGRAM 1 OF 9) FROM POWER SUPPLY TRANSFORMER (DIAGRAM 1 OF 9) GRN/VIO WIRE IGNITION MAIN RELAY LEFT REAR BACK SEAT BLOWER ASSEMBLY LEFT REAR CUSHION SEAT BLOWER ASSEMBLY LOGIC LOGIC INSIDE REAR VIEW MIRROR PASSENGER BACK SEAT BLOWER ASSEMBLY PASSENGER CUSHION SEAT BLOWER ASSEMBLY PNK WIRE REAR SUNSHD FUSE REAR VIEW CAMERA REAR WINDOW SUNSHADE MODULE RED WIRE RED/BRN WIRE RED/WHT WIRE RIGHT REAR BACK SEAT BLOWER ASSEMBLY RIGHT REAR CUSHION SEAT BLOWER ASSEMBLY RUN/CRNK MISC FUSE TO ACCESSORY RELAY (DIAGRAM 5 OF 9) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 9) TO POWER SUPPLY TRANSFORMER (DIAGRAM 1 OF 9) TO RETAINED ACCESSORY POWER RELAY (DIAGRAM 8 OF 9) VENT SEAT FUSE VIO/BLK WIRE VIO/GRN WIRE W/ LUXURY SEATS W/ PASSENGER FRONT VENTILATED SEAT WHT WIRE YEL WIRE

2.0L TURBO 3.0L TURBO 3.6L, 3.0L TURBO ACC WAKEUP SERIAL DATA AUTOMATIC TRANSMISSION ASSEMBLY AUXILIARY UNDERHOOD FUSE BLOCK BATTERY BATTERY FUSE BLOCK BATTERY POSITIVE VOLT BATTERY SENSOR MODULE 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 ECM IGN FUSE ENABLE RLY CTRL ENGINE CONTROL MODULE EXCEPT HYBRID EXCEPT HYBRID HYBRID FUSE 3 FUSE 7 FUSE 8 GMLAN SERIAL DATA - 1 GROUND GRY/WHT WIRE HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT IGN MODE SW VOLT IGNITION MODE SWITCH LO REF NCA WIRE PARK/NEUTRAL SIG (1) POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (RIGHT SIDE OF LUGGAGE COMPT) REAR BODY FUSE BLOCK RED WIRE RED/GRY WIRE RED/WHT WIRE RLY CTRL RUN/ CRNK MISC FUSE RUN/CRANK IGN 1 VOLT SERIAL DATA (+) (3) SERIAL DATA (+) 1 PRNDL P SIG SERIAL DATA (-) (1) STARTER MOTOR STARTER PINION SOLENOID ACTUATOR RELAY STARTER RELAY STRTR 1 FUSE STRTR 2 FUSE TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION INTERNAL MODE SWITCH (HYBRID) UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/BLU WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/GRN WIRE BRN/RED WIRE ENGINE OIL LEVEL SWITCH EXCEPT HYBRID HYBRID FUEL PRESSURE SENSOR GRN/BLK WIRE GRN/BLU WIRE GRN/WHT WIRE GRY/WHT WIRE IGNITION COIL 1 IGNITION COIL 2 IGNITION COIL 3 IGNITION COIL 4 KNOCK SENSOR #2 KNOCK SENSOR 1 NCA WIRE SPARK PLUG VIO/BLU WIRE VIO/GRY WIRE WHT/GRY WIRE WHT/RED WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE