Cadillac CT6 I (2016-2019) underhood auxiliary fuse block Wiring diagrams

B+ VOLT BLK WIRE BLU WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY EPS FUSE GRY/GRN WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HIGH SPEED GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT CLUSTER LOGIC LOW SPD GMLAN SERIAL DATA 2 POWER STEERING CONTROL MODULE POWER STEERING MOTOR RED/BRN WIRE SERIAL DATA COMMUNICATION ENABLE UNDERHOOD AUXILIARY FUSE BLOCK WHT WIRE WHT/BLU WIRE

ACTIVE SAFETY CONTROL MODULE 2 B+ VOLT BLK WIRE BLU WIRE BLU/RED WIRE BLU/YEL WIRE COLUMN FRICTION ENGAGE CTRL COLUMN FRICTION RLY CTRL COLUMN FRICTION SPLY COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY EPS FUSE GMLAN DATA (+) 2 GRN/GRY WIRE GRY/GRN WIRE HIGH SPEED GMLAN SERIAL DATA (-) (1) HIGH SPEED GMLAN SERIAL DATA (-) (2) HOT AT ALL TIMES INSTRUMENT CLUSTER LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 27 LOGIC LOW SPD GMLAN SERIAL DATA 2 PEPS BATT FUSE POWER STEERING CONTROL MODULE POWER STEERING MOTOR REAR BODY FUSE BLOCK RED/BLU WIRE RED/BRN WIRE SERIAL DATA COMMUNICATION ENABLE STEERING COLUMN FRICTION CONTROL MODULE STEERING WHEEL ANGLE SENSOR MODULE UNDERHOOD AUXILIARY FUSE BLOCK VIO WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE

BATTERY FUSE BLOCK BLK WIRE BLK/BRN WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE FUSE 8 GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HEADLAMP RELAY HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IPC FUSE L CORNER LED FUSE LED LGT BAT FUSE LEFT CORNERING LAMP LEFT CORNERING LAMP RELAY LEFT FRONT SIDE MARKER LAMP LEFT REAR SIDE MARKER LAMP LEFT STOP/ TURN SIGNAL LAMP LEFT TAIL LAMP ASSEMBLY LEFT TAIL/ STOP LAMP LOGIC NCA WIRE POWER DISTRIBUTION SYSTEM R CORNER LED FUSE RED WIRE RED/WHT WIRE RIGHT CORNERING LAMP RELAY RIGHT FRONT SIDE MARKER LAMP RIGHT HEADLAMP RELAY UNDERHOOD AUXILIARY FUSE BLOCK UNDERHOOD FUSE BLOCK 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 YEL/GRY WIRE YEL/WHT 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

BATTERY FUSE BLOCK BLK WIRE BODY CONTROL MODULE BRN/GRY WIRE BRN/WHT WIRE FUSE 8 GRN/WHT WIRE HORN ASSEMBLY HORN FUSE HORN RELAY HORN RLY CTRL HORN SW SIG HORN SWITCH HOT AT ALL TIMES NCA WIRE RED WIRE STEERING WHEEL AIR BAG COIL UNDERHOOD AUXILIARY FUSE BLOCK UNDERHOOD FUSE BLOCK

A/C COMPRESSOR ACCM/ SPARE FUSE AMBIENT LIGHT/ SUN LOAD SENSOR, BATTERY STATE OF CHARGE INDICATOR BATT POS VOLT BATTERY BATTERY SENSOR FUSE HOLDER BATTERY SENSOR MODULE BLK WIRE BLU/BLK WIRE BRN WIRE CHCM/ SPARE FUSE COMPUTER DATA LINES SYSTEM COOL FAN FUSE COOLANT HEATER CONTROL MODULE COOLING FAN MOTOR DISPLY FUSE ENABLE RLY CTRL EPS FUSE EXCEPT HYBRID HYBRID W/O REAR SEAT ENTERTAINMENT W/ REAR SEAT ENTERTAINMENT FROM REAR BODY FUSE BLOCK (DIAGRAM 6 OF 9) FUSE FUSE 1 FUSE 2 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 1 GEN FUSE GENERATOR GRN WIRE GRY WIRE HEAD-UP DISPLAY HUMAN MACHINE INTERFACE CONTROL MODULE BYPASS MODULE HVAC CONTROL MODULE HVAC CONTROLS HVAC FUSE HYBRID/EV ELECTRONICS COOLANT PUMP HYBRID/EV POWERTRAIN CONTROL MODULE 1 POWER INVERTER MODULE IGN 1 VOLT INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LDW FUSE LOGIC MEDIA DISC EJECT SWITCH MEDIA DISC PLAYER NCA WIRE ONSTAR FUSE ORG/ WIRE POWER STEERING CONTROL MODULE POWER SUPPLY TRANSFORMER (RIGHT SIDE OF LUGGAGE COMPT) PWR CL PUMP FUSE REAR WHEEL STEERING CONTROL MODULE RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SER DATA - (3) STARTER MOTOR STARTER RELAY STARTING/ CHARGING SYSTEM STRTR 2 FUSE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 5 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 6 OF 9) TO REAR BODY FUSE BLOCK (DIAGRAM 8 OF 9) TO RSE DISP FUSE (DIAGRAM 7 OF 9) TO STR WHL FUSE (DIAGRAM 9 OF 9) TO STRTR 1 FUSE (DIAGRAM 2 OF 9) TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 9) TPIM 2 FUSE UNDERHOOD AUXILIARY FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ ONSTAR WAKEUP SER DATA WHT WIRE YEL WIRE

AIR SOL FUSE BATT POS VOLT BATTERY BATTERY SENSOR FUSE HOLDER BATTERY SENSOR MODULE BLK WIRE BLU/BLK WIRE BRN WIRE COMPUTER DATA LINES SYSTEM COOL FAN FUSE COOLING FAN MOTOR DISPLY FUSE ENABLE RLY CTRL EPS FUSE FROM POWER SUPPLY TRANSFORMER (DIAGRAM 1 OF 10) FROM REAR BODY FUSE BLOCK (DIAGRAM 6 OF 10) FUSE FUSE 1 FUSE 3 FUSE 4 FUSE 5 FUSE 6 FUSE 7 FUSE 8 FUSE 9 GEN FUSE GENERATOR GRN WIRE HEAD-UP DISPLAY HVAC CONTROL MODULE HVAC CONTROLS HVAC FUSE IEC FUSE IGN 1 VOLT INFO DISPLAY MODULE INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI-FUNCTION SWITCH 1 INSTRUMENT PANEL MULTI-FUNCTION SWITCH 2 LDW FUSE LOGIC MEDIA DISC EJECT SWITCH MEDIA DISC PLAYER NCA WIRE ONSTAR FUSE ORG/ WIRE POWER STEERING CONTROL MODULE POWER SUPPLY TRANSFORMER (RIGHT SIDE OF LUGGAGE COMPT) RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE SER DATA - (3) SPARE FUSE STARTER MOTOR STARTER RELAY STRTR 2 FUSE TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 1 OF 10) TO INSTRUMENT PANEL FUSE BLOCK (DIAGRAM 3 OF 10) TO MULTI-FUNCTION ENERGY STORAGE CAPACITOR CONTROL MODULE (DIAGRAM 10 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 4 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 5 OF 10) TO REAR BODY FUSE BLOCK (DIAGRAM 8 OF 10) TO RSE DISP FUSE (DIAGRAM 7 OF 10) TO STR WHL FUSE (DIAGRAM 9 OF 10) TO STRTR 1 FUSE (DIAGRAM 2 OF 10) TO UNDERHOOD FUSE BLOCK (DIAGRAM 2 OF 10) UNDERHOOD AUXILIARY FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ ONSTAR W/O REAR SEAT ENTERTAINMENT W/ REAR SEAT ENTERTAINMENT WAKEUP SER DATA WHT WIRE

ACTIVE GRILLE AIR SHUTTER ACTUATOR AERO SHUTTER FUSE BATT POS VOLT BATTERY FUSE BLOCK BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/GRY WIRE BRN/WHT WIRE BUS 21 CHARGE IND CTRL COIL EVEN/ NON WALK 2 FUSE COMPUTER DATA LINES SYSTEM CONTROLLER SIG COOL PUMP/ COIL ODD FUSE CTRL 6 DUTY CYCLE SIG ECM MAIN FUSE ENGINE CONTROLS IGNITION RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE EXCEPT HYBRID EXCEPT HYBRID HYBRID FPPM FUSE FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE FUSE 8 1 FUSED GRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HI FUEL FUSE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT LOGIC LOW REF NCA WIRE NON/ WALK FUSE RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE SECONDARY FUEL LEVEL SENSOR FUEL LEVEL SENSOR ASSEMBLY SER DATA SER DATA - (3) SHIELD GND STARTING/ CHARGING SYSTEM UNDERHOOD AUXILIARY FUSE BLOCK UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WAKEUP SER DATA WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/VIO WIRE

AC VOLTAGE SENSE SIG AIR CONDITIONING SYSTEM AMBIENT LIGHT/ SUNLOAD SENSOR, BATTERY STATE OF CHARGE INDICATOR BLK WIRE BLK/BRN WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/BLU WIRE BRN/WHT WIRE CHARGE PORT DOOR POSITION SWITCH CHARGING CTRL CHARGING ENABLE COMM CTRL COMPUTER DATA LINES SYSTEM COOLING FANS SYSTEM CTRL PILOT SIG 1 DC VOLTAGE SENSE SIG FAN CTRL SIG FAULT SIG FEEDBACK SIG GEN FUSE GMLAN SERIAL DATA GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES HVAC FUSE HYBRID/EV POWERTRAIN CONTROL MODULE 2 IGNITION 1 VOLTAGE INDICATOR CTRL INSTRUMENT PANEL FUSE BLOCK LOCK/UNLOCK 1 REF LOCK/UNLOCK 1 SIG LOGIC MOTOR CTRL MOTOR HIGH CTRL MOTOR LOW REF RED/VIO WIRE RED/YEL WIRE SENS SIG SERIAL DATA 2 SPEED SIG STATUS SIG 1 SWITCH SIG TO HYBRID/EV BATTERY PACK (DIAGRAM 2 OF 10) TRUNK, TAILGATE, FUEL DOORS SYSTEM UNDERHOOD AUXILIARY FUSE BLOCK VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/WHT WIRE VIO/YEL WIRE WAKEUP SERIAL DATA WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/YEL WIRE YEL WIRE YEL/GRN WIRE YEL/GRY WIRE YEL/VIO WIRE

AERO SHUTTER FUSE AIR CONDITIONING SYSTEM ANTI-LOCK BRAKES SYSTEM BATT POS VOLT BATTERY FUSE BLOCK BLK/BLU WIRE BLK/VIO WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BOIL HTR RLY CTRL BRK SIG BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOL PUMP/ COIL ODD FUSE COOLING FANS SYSTEM CTRL SIG DATA OUT SIG DOOR LOCKS, ANTI-THEFT SYSTEMS ECM MAIN FUSE ELECTRONIC SUSPENSION SYSTEM ENGINE CONTROL MODULE ENGINE CONTROLS IGNITION RELAY EVAPORATIVE EMISSION VENT SOLENOID VALVE FUSE 8 FUSED SPLY 1 FUSED SPLY 2 FUSED SPLY 3 GRN WIRE GRN/WHT WIRE GRY WIRE HI FUEL FUSE HOOD STATUS A SIG HOT AT ALL TIMES HUMIDITY SENS SIG IGN 1 VOLT IND CTRL LO REF LO REF 1 LO REF 2 NON/ WALK FUSE PARK/NEUTRAL SIG (1) PRESS SENS SIG RED WIRE RED/GRN WIRE RED/WHT WIRE RLY COIL CTRL RLY CTRL SENS SIG SERIAL DATA (+) (3) SERIAL DATA (-) (1) SIG (1) SIG (2) SIG GND SOL CTRL STARTING/CHARGING SYSTEM SW SIG TRANSMISSIONS SYSTEM UNDERHOOD AUXILIARY FUSE BLOCK UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WAKEUP SERIAL DATA WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE