Cadillac CT6 I (2016-2019) w/o super cruise package w/ super cruise package Wiring diagrams

2.0L TURBO 3.6L, 3.0L TURBO ACCESSORY WAKEUP SERIAL DATA B+ VOLT BCM 1 FUSE BCM 2 FUSE BLK WIRE BLK/BRN WIRE BLK/GRY WIRE BLU WIRE BRAKE/ BRN WIRE BRN/WHT WIRE CLUTCH A CTRL CLUTCH B CTRL CLUTCH C CTRL CLUTCH D CTRL (PINS: 4 TO 6 NOT USED) 7 TRANS POSITION SENS B CLUTCH E CTRL COMPUTER DATA LINES SYSTEM DATA DRIVER INFORMATION CENTER DISPLAY GMLAN SERIAL DATA (-) (1) (PINS: 39 TO 46 NOT USED) GMLAN SERIAL DATA (-) (1) (PINS: 55 TO 58 NOT USED) 59 GMLAN SERIAL DATA - 1 GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IMS MODE SW LO REF IN SPD SIG INSTRUMENT CLUSTER LIN BUS 2 LOGIC TRANSMISSION SHIFT LEVER POSITION INDICATOR MOST SERIAL NON/ WALK FUSE OUT SPD SIG PARK POSITION SWITCH POWER DISTRIBUTION SYSTEM PRNDL A SIG PRNDL B SIG PRNDL C SIG PRNDL P SIG PRNDL S SIG RAP GND RELAY COIL CONTROL REAR BLWR TCM FUSE REAR BODY FUSE BLOCK RED WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLT SIG GND TCC ON/OFF SOLENOID A CTRL TCC ON/OFF SOLENOID B CTRL TRANS CLUTCH G CTRL TRANS CLUTCH H CTRL TRANS HI SIDE DRV 1 SIG DRV TRANS HI SIDE DRV 2 SIG TRANS IGN FUSE TRANS INTERMEDIATE SPD SIG TRANS OIL TEMP SENS LO REF (PINS: 29 TO 32 NOT USED) TRANS OIL TEMP SENS SIG TRANS POSITION SENS A (PINS: 9 TO 12 NOT USED) 13 TRANSMISSION CONTROL MODULE TRANSMISSION MANUAL SHIFT SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/VIO WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ACTIVE SIG ACTUATOR LOCK CTRL BACKUP LAMP CTRL BATT POSITIVE VOL BATT POSITIVE VOLT BATT RVC FUSE BATTERY BATTERY CURRENT SENSOR BCM 6 FUSE BCM 7 FUSE BLK WIRE BLK/BRN WIRE BLK/VIO WIRE BLU WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM CORNERING LAMP RLY CTRL COURTESY LP SW SIG CRUISE CONTROL, ANTI-LOCK BRAKES SYSTEMS CRUISE/ETC/TCC BRAKE SIG CURRENT LOW REF CURRENT SENS CTRL ACC WAKEUP SERIAL DATA CURRENT SENS SIG DOME LP OFF IND CTRL DOOR LOCKS, ANTI-THEFT SYSTEMS DR LK ACTR UNLCK CTRL DR LK CTRL ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM EXTERIOR LIGHTS, HEADLIGHTS SYSTEMS FDBACK SIG FEEDBACK SIG FR WINDSHIELD WIP SW HI SIG FUEL DR LK RLY CTRL GRN WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/VIO WIRE GRY/YEL WIRE HDLP HI BEAM RLY CTRL HDLP RLY COIL CTRL HDLP WASHER RLY CTRL HEADLIGHTS SYSTEM HEADLIGHTS, EXTERIOR LIGHTS SYSTEMS HI BEAM AUTO ON/OFF SW SIG HOOD STATUS B SIGNAL HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES INADVERTENT PWR CTRL INTERIOR LAMP CTRL KEY CAPTURE/COLUMN LOCK SHIFT POS SIG LED AMBIENT LIGHTING CTRL 1 LED BACKLIGHT DIMM CTRL LF DRL CTRL LF TURN SIG LP CTRL LH HDLP LO BEAM CTRL LH HEADLAMP RLY CTRL LH PARK LP CTRL LID INTERIOR RELEASE SIG LIFT GLASS/TRUNK RELS CTRL LIFTGATE AJAR SW SIG 1 LO SPD GMLAN SERIAL DATA LOGISTIC MODE RLY OPEN CTRL LOW REF LR TURN SIG LP CTRL PARK LK SOL CTRL PASS DR LK SW LK CTRL PASS DR LOCK SW UNLCK CTRL POWER DISTRIBUTION SYSTEM RAP RLY COIL CTRL REAR BODY FUSE BLOCK REAR COMPT LID LP CTRL RED/GRN WIRE RED/WHT WIRE RED/YEL WIRE RF DRL CTRL RF TURN SIG LP CTRL RH HDLP LO BEAM CTRL RH PARK LP CTRL RLY CLOSE CTRL RR CLOSURE HANDLE SW OPEN SIG RR LICENSE LP CTRL RR STOP LP CTRL RR TURN LP FEEDBACK SIG RR TURN SIG LP CTRL RUN/CRANK RLY COIL CTRL SECURITY LOCK RLY CTRL SERIAL DATA (-) (1) SERIAL DATA BUS 1 SERIAL DATA BUS 2 SERIAL DATA BUS 3 SERIAL DATA COMM ENABLE SHIFT INTERLOCK, TRANSMISSIONS SYSTEMS STP LP RLY COIL CTRL TRANSMISSIONS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RLY CTRL WINDSHIELD WIPER MTR PRK SW SIG WINDSHIELD WIPER MTR RLY COIL CTRL WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

BATTERY FUSE BLOCK BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE FUSE 1 FUSE 9 GRN WIRE GRN/VIO WIRE GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BLU WIRE GRY/GRN WIRE HEADLIGHTS SYSTEM HOT AT ALL TIMES LEFT FRONT PARK LAMP LEFT FRONT TURN SIGNAL LAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP MULTI-FUNCTION LED LEFT HEADLAMP MULTI-FUNCTION LED CONTROL MODULE LEFT HEADLAMP RELAY LEFT PARK DAYTIME RUNNING LAMP LEFT REAR EXTERIOR DOOR HANDLE ASSEMBLY LEFT REAR EXTERIOR DOOR HANDLE COURTESY LAMP LOGIC MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE N/A R SUB FUSE REAR BODY FUSE BLOCK RED WIRE RED/GRY WIRE RIGHT REAR EXTERIOR DOOR HANDLE ASSEMBLY RIGHT REAR EXTERIOR DOOR HANDLE COURTESY LAMP VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/YEL WIRE YEL/BRN WIRE

AMBIENT LIGHT SENSOR SIG BATT POS VOLT BATTERY FUSE BLOCK BCM 3 FUSE BCM 4 FUSE BLK WIRE BLU WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRN/VIO WIRE COMPUTER DATA LINES SYSTEM FUSE 8 GRN WIRE GROUND HDLP DIMMER SW HI BEAM SIG HDLP HI BEAM RELAY CTRL HDLP HI LT/RT FUSE HDLP RELAY COIL CTRL HDLP RELAY CTRL HDLP SW FLASH TO PASS SIG HDLP SW HDLPS OFF SIG CTRL HDLP SW ON SIG HEADLAMP HIGH BEAM RELAY HEADLAMP RELAY HI BEAM AUTO ON/OFF SW SIG HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK IPC FUSE LED LGT BAT FUSE LEFT HDLP LOW BEAM CTRL LEFT HEADLAMP LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP CONTROL MODULE LEFT HEADLAMP COOLING FAN NCA WIRE POWER DISTRIBUTION SYSTEM RED WIRE RED/BLU WIRE RED/GRY WIRE RIGHT HDLP LOW BEAM CTRL RIGHT HEADLAMP RELAY UNDERHOOD AUXILIARY FUSE BLOCK UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/GRY WIRE YEL WIRE YEL/BRN WIRE

BLK WIRE BLK/BLU WIRE BLU/GRN WIRE BOLSTER PUMP BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS 7 DATA BUS 8 DRIVER SEAT MEMORY CONTROL MODULE DRIVER SEAT MEMORY SWITCH EXIT GRN WIRE GRN/BRN WIRE GRN/WHT WIRE HIGH REFERENCE (2) HOT AT ALL TIMES LEFT REAR SEAT BOLSTER MEMORY CONTROL MODULE LEFT REAR SEAT LUMBAR/BOLSTER PUMP LEFT REAR SEAT MEMORY CONTROL MODULE LO REF LT REAR SEAT FUSE POSITION SENS SIGNAL POSITION SENSOR SIG POSITIVE VOLT REAR BODY FUSE BLOCK RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RT REAR SEAT FUSE SEAT ADJUSTMENT SW FUSE SENSOR SIGNAL SERIAL DATA SET SIG SET- SWITCH SIG 2 SWITCH SIGN 1 VIO/BRN WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/BLU WIRE YEL WIRE

BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/GRN WIRE BLK/YEL WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DEFOGGER SYSTEM DR MIR FUSE DRIVER SEAT MEMORY CONTROL MODULE DRIVER SEAT MEMORY SWITCH EXIT FRT SEAT FUSE GRN WIRE GRN/BLK WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES LIN NETWORK BUS 8 LOGIC LOW REF LOW SPEED GMLAN SERIAL DATA MIRROR DIMMING MIRRORS SYSTEM NAVIGATION SYSTEM ORG/BLK WIRE PASS MIR MTR COMMON CTRL PASS MIR MTR FOLD IN CTRL PASS MIR MTR FOLD OUT CTRL PASS MIR MTR LH (-) RH (+) CTRL PASS MIR MTR UP (+) DWN (-) CTRL PASS MIR POS PASS MIR POS SENS LH (-) RH (+) SIG PASS MIR POS SENS LOW REF PASS MIR POS SENS UP (+) DWN (-) SIG PASSENGER OUTSIDE REAR VIEW MIRROR PASSENGER OUTSIDE REAR VIEW MIRROR COURTESY LAMP PASSENGER OUTSIDE REAR VIEW MIRROR FOLDING MOTOR PASSENGER OUTSIDE REAR VIEW MIRROR GLASS PASSENGER OUTSIDE REAR VIEW MIRROR LAMPS ASSEMBLY PASSENGER OUTSIDE REAR VIEW MIRROR MOTOR PASSENGER SIDE OBJECT DETECTION INDICATOR PASSENGER WINDOW SWITCH REAR BODY FUSE BLOCK RED/GRY WIRE RED/VIO WIRE RIGHT TURN SIGNAL REPEATER LAMP SET SIG SET- SW SIG VIO/WHT WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE

BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLU/GRN WIRE BLU/YEL WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DATA BUS 8 DOWN SWITCH SIGNAL DRIVER SEAT MEMORY CONTROL MODULE DRIVER SEAT MEMORY SWITCH EXIT FORWARD SWITCH SIGNAL FRT SEAT FUSE GMLAN SERIAL DATA GRN WIRE GRN/BRN WIRE GRN/WHT WIRE GROUND GRY/VIO WIRE HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK LOW REF MOTOR SIGNAL NETWORK 8 PWR STR WHL FUSE REAR BODY FUSE BLOCK REARWARD SWITCH SIGNAL RED WIRE RED/BRN WIRE RED/GRY WIRE SET- STEERING COLUMN POSITION CONTROL MODULE STEERING COLUMN TELESCOPE MOTOR STEERING COLUMN TILT MOTOR STEERING COLUMN TILT, TELESCOPE SWITCH SW SIG SW SIG 1 TELESCOPE MOTOR FORWARD TELESCOPE MTR DOWN TELESCOPE MTR REARWARD TELESCOPE MTR UP TILT LOW REF TILT MOTOR SIGNAL UP SWITCH SIGNAL W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/BLK WIRE YEL WIRE YEL/BRN WIRE

BLK WIRE BLK/BLU WIRE BLU/GRN WIRE BOLSTER PUMP BRN/WHT WIRE COMPUTER DATA LINES SYSTEM DATA BUS 14 DATA BUS 16 EXIT GRN WIRE GRN/VIO WIRE GRN/YEL WIRE HIGH REFERENCE (2) HOT AT ALL TIMES LO REF PASSENGER SEAT MEMORY CONTROL MODULE PASSENGER SEAT MEMORY SWITCH POSITION SENS SIG POSITION SENSOR SIG POSITIVE VOLT REAR BODY FUSE BLOCK RED/BRN WIRE RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR SEAT BOLSTER MEMORY CONTROL MODULE RIGHT REAR SEAT LUMBAR/ BOLSTER PUMP RIGHT REAR SEAT MEMORY CONTROL MODULE RR SEAT FUSE RT REAR SEAT FUSE SEAT ADJUSTMENT SW FUSE SENSOR SIG SERIAL DATA SET SIG SET- SWITCH SIG 1 SWITCH SIGN 1 W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/BLU WIRE WHT/RED WIRE YEL WIRE

BATT POS VOLT BCM 6 FUSE BLK WIRE BLK/ORG WIRE BLU WIRE BLU/BLK WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER LEFT END OF DASH) BRAKE FLUID LEVEL SWITCH (ON BRAKE FLUID RESERVOIR) BRAKE IND BRK FLUID LEVEL SENS SIG BRN WIRE COMPUTER DATA LINES SYSTEM DISPLAY DOOR AJAR IND DRIVER DOOR LATCH ASSEMBLY DRIVER SEAT BELT SWITCH DRIVER SEAT BELT BUCKLE DRV SEAT BELT SW LOW REF DRV SEAT BELT SW SIG ELECTRONIC BRAKE CONTROL MODULE (LOWER LEFT FRONT OF ENGINE COMPT) GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/RED WIRE GRY/VIO WIRE HEAD HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES INFLATABLE RESTRAINT SENSING, DIAGNOSTIC MODULE (UNDER CENTER FLOOR CONSOLE) INSTRUMENT CLUSTER LEFT REAR DOOR LATCH ASSEMBLY LF DOOR AJAR SW SIG LOGIC LOGIC DRIVER WINDOW MOTOR LOGIC LEFT REAR WINDOW MOTOR LOGIC PASSENGER WINDOW MOTOR LOGIC RIGHT REAR WINDOW MOTOR LR DOOR AJAR SW SIG OFF OFF SIG CTRL ORG/BRN WIRE PARK AUTO PARK BRAKE CONTROL SWITCH PARK BRK APPLY SW SIG PARK BRK APPLY SW VOLT REF PARK BRK RELEASE SW SIG PARK BRK SW SIG PARK BRK SW SPLY VOLT PARK LAMP SIG PARK RELEASE SW VOLT REF PASSENGER DOOR LATCH ASSEMBLY RADIO REAR BODY FUSE BLOCK REAR COMPARTMENT LID LATCH RED/WHT WIRE RF DOOR AJAR SW SIG RIGHT REAR DOOR LATCH ASSEMBLY RR DOOR AJAR SW SIG SEAT BELT IND SER DATA SER DATA (+) 2 SER DATA (-) (1) SER DATA BUS 3 SER DATA BUS 4 SERIAL DATA SERVICE PARK BRAKE IND SW ON SIG SW SIG 1 TIRE PRESSURE IND TURN SIGNAL/MULTI-FUNCTION SWITCH VIO/GRY WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/RED WIRE

ACTUATOR HI CTRL BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BRN WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/WHT WIRE CENTER CONSOLE MULTI-FUNCTION SWITCH ENGINE CONTROL MODULE ENGINE COOLANT TEMPERATURE SENSOR ENGINE OIL PRESSURE SENSOR FUEL TANK PRESSURE SENSOR GRN WIRE GRN/BLK WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE GRY/WHT WIRE HEATED OXYGEN SENSOR 1 HEATED OXYGEN SENSOR 2 HIGH PRESSURE FUEL PUMP KNOCK SENS SIG 1 KNOCK SENS SIG 2 MODE SWITCH MULTI-FUNCTION INTAKE AIR SENSOR PRESS SENS SIG SENS LOW REF (2) SENS LOW REF 1 SIG GND TURBOCHARGER BOOST/INTAKE AIR TEMPERATURE SENSOR VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE W/O SUPER CRUISE PACKAGE W/ SUPER CRUISE PACKAGE WHT WIRE WHT/BLU WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE WHT/YEL WIRE YEL WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE