Buick Regal VI (2017-2020) underhood fuse block Wiring diagrams

2.0L TURBO 3.6L 5 VOLT REF A/C COMPRESSOR (RIGHT SIDE OF ENGINE) A/C COMPRESSOR CLUTCH A/C COMPRESSOR SOLENOID VALVE BATT POS BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BLU WIRE BLOWER MTR SPD CTRL BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE BRN WIRE BRN/GRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM COOLING FAN COOLING FAN FUSE COOLING FAN/DC DC CONVERTER 2 FUSE CTRL SIG DEFOGGER SYSTEM DISPLACEMENT CTRL DISPLACEMENT SPLY DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND GRN WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/GRN WIRE GRY/VIO WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HUMIDITY SENS SIG HUMIDITY TEMP SENS SIG HVAC CONTROL MODULE (CENTER OF DASH) INSIDE AIR TEMP SENS SIG INSTRUMENT CLUSTER INSTRUMENT PANEL/ IGNITION FUSE J170 (2.0L TURBO) J160 (3.6L) LEFT COOLING FAN MOTOR (3.6L) (LEFT BACK SIDE OF RADIATOR) LOGIC LOW REF LOW SPD GMLAN SERIAL DATA LOWER AIR TEMP SENS SIG MOST SERIAL DATA (+) NETWORK SERIAL DATA BUS 9 PULSED VOLT REF REAR DEFOG RLY CTRL RED WIRE RED/BLU WIRE RED/BRN WIRE RED/WHT WIRE RUN/CRANK IGNITION 1 VOLT SOLAR SENS LOW REF UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE VOLT WHT WIRE WHT/GRN WIRE WINDSCREEN TEMP SENS SIG WINDSHIELD TEMPERATURE, INSIDE MOISTURE SENSOR YEL/BLU WIRE YEL/RED WIRE

2.0L TURBO 3.6L A/C COMPRESSOR CLUTCH RELAY A/C EVAPORATOR TEMPERATURE SENSOR A/C HEV FUSE AMBIENT AIR TEMPERATURE SENSOR AUXILIARY HEATER COOLANT PUMP RELAY BLK/GRN WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BRN WIRE BRN/GRN WIRE BRN/YEL WIRE DUCT LEFT LOWER AIR TEMPERATURE SENSOR DUCT LEFT UPPER AIR TEMPERATURE SENSOR DUCT RIGHT LOWER AIR TEMPERATURE SENSOR DUCT RIGHT UPPER AIR TEMPERATURE SENSOR ENGINE CONTROL MODULE/ IGNITION FUSE ENGINE CONTROLS SYSTEM ENGINE COOLANT TEMPERATURE SENSOR FUSE 10 FUSE 33 FUSE 39 FUSE 4 GRY WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RED/WHT WIRE TPIM MOTOR GENERATOR/TPIM FUSE UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/GRY WIRE WHT WIRE WHT/GRY WIRE YEL/BLU WIRE

2.0L TURBO 3.6L ACC WAKEUP ACCESSORY WAKEUP ACCESSORY WAKEUP SER DATA BATTERY SENSOR MODULE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/YEL WIRE DATA BUS 2 DATA BUS 21 ELECTRONIC BRAKE CONTROL MODULE (LEFT REAR OF ENGINE COMPT) ENGINE CONTROL MODULE FUEL PUMP DRIVER CONTROL MODULE GRN/BLU WIRE GRN/VIO WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (+) (3) HI SPD GMLAN SERIAL DATA (+) 1 ACCESSORY WAKEUP SER DATA HI SPD GMLAN SERIAL DATA (-) (1) HI SPD GMLAN SERIAL DATA (-) (2) HI SPD GMLAN SERIAL DATA (-) 7 HIGH SPEED GMLAN LIN SER DATA BUS 21 LIN SERIAL LOGIC TRANSMISSION CONTROL MODULE AUTOMATIC TRANSMISSION ASSEMBLY POWER SOUNDER CONTENT THEFT DETERRENT ALARM MODULE POWER STEERING CONTROL MODULE (LOWER ENGINE COMPT, ON STEERING GEAR) POWER SUPPLY TRANSFORMER REGAL SPORTBACK REGAL TOURX SEAT HEATING CONTROL MODULE SER DATA - (3) SERIAL DATA SERIAL DATA (-) 7 SERIAL DATA COMMUNICATION ENABLE TRANSMISSION SHIFT LEVER POSITION INDICATOR UNDERHOOD FUSE BLOCK VIO/YEL WIRE WHT WIRE WHT/BLU WIRE

ALL WHEEL DRIVE DAMPING CONTROL FUSE BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/YEL WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN WIRE BRN/GRN WIRE BRN/RED WIRE CENTER CONSOLE MULTI-FUNCTION SWITCH COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY GMLAN SER DATA (-) (2) GMLAN SER DATA - (1) GRN/GRY WIRE GRY WIRE GRY/GRN WIRE HIGH SPEED GMLAN SER DATA (+) 1 HIGH SPEED GMLAN SERIAL DATA (+) 1 IND DIMMING CTRL HOT AT ALL TIMES ILL INSTRUMENT CLUSTER LEFT FRONT SHOCK ABSORBER ACTUATOR LEFT FRONT SUSPENSION POSITION SENSOR LEFT REAR SHOCK ABSORBER ACTUATOR LF DAMP SERVO CTRL LF WHEEL DAMP ACCEL LOW REF LR WHEEL DAMP ACCEL LOW REF LF WHEEL DAMP ACCEL SIG LOGIC LOW SPD GMLAN SERIAL DATA 2 LR DAMP SERVO CTRL LR WHEEL DAMP ACCEL SIG NCA WIRE REAR SUSPENSION POSITION SENSOR RED WIRE RED/VIO WIRE RF DAMP SERVO CTRL RF WHEEL DAMP ACCEL LOW REF RF WHEEL DAMP ACCEL SIG RIGHT FRONT SHOCK ABSORBER ACTUATOR RIGHT FRONT SUSPENSION POSITION SENSOR RIGHT REAR SHOCK ABSORBER ACTUATOR RR DAMP SERVO CTRL SERIAL DATA COMM ENABLE SHIFT SELECT SW PER SIG SIG GND SPORT IND SPORT LED CTRL SPORT MODE SW SIG SPORT SWITCH SUSPENSION CONTROL MODULE TOUR IND TOUR LED CTRL TOUR SWITCH TRACTION CONTROL SWITCH TRACTION CTRL SW SIG 1 UNDERHOOD FUSE BLOCK VIO/GRN WIRE VIO/RED WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/BRN WIRE YEL/RED WIRE

BLK WIRE BLU/WHT WIRE CENTER HIGH MOUNTED STOP LAMP COMPUTER DATA LINES SYSTEM FUSE 6 GRN WIRE GRN/VIO WIRE GROUND DISTRIBUTION SYSTEM GRY/BRN WIRE HATCHBACK/ WAGON HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL FUSE BLOCK LEFT CORNERING LAMP LEFT CORNERING LAMP LED TEMPERATURE SENSOR LEFT HEADLAMP ASSEMBLY LEFT HEADLAMP/ CORNERING LAMP CONTROL MODULE LEFT TURN SIGNAL REPEATER LAMP LOGIC LOGIC LEFT HEADLAMP MULTI-FUNCTION LED MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE RED/GRY WIRE RIGHT INNER TAILLAMP RIGHT LIFTGATE TAILLAMP ASSEMBLY RIGHT SIDE OF RADIATOR) RIGHT TURN SIGNAL REPEATER LAMP TRAILER CONNECTOR UNDERHOOD FUSE BLOCK VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE W/ HALOGEN W/ TRAILER PROVISIONS W/O TRAILER PROVISIONS WAGON

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/VIO WIRE CAMERA SIG 2 COAX COAX BK COAX CU COAX YE DISPLAY SIG COAX WH COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 16 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR LOW LEVEL AUDIO REF MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP DISPLAY VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/ HEAD W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CAMERA SIG 2 COAX COAX BK COAX CU COAX YE DISPLAY SIG COAX WH COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR SPEAKER SIG (-) MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE

2.0L TURBO 3.6L AM/FM AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BRN WIRE CAMERA SIG 2 COAX COAX BK COAX CU COAX YE DISPLAY SIG COAX WH COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 16 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MICROPHONE (-) LOW REF MICROPHONE SIG MUTE NAVIGATION SYSTEM NAVIGATION SYSTEM (REAR VIEW CAMERA CIRCUIT) NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO REAR VIEW CAMERA CIRCUIT RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEEK UP SEL RIGHT STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VIO/YEL WIRE VOICE RECOGNITION AUDIO REF VOICE RECOGNITION AUDIO SIG VOL (-) W/O HEAD-UP DISPLAY W/ HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE

2.0L TURBO 3.6L BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE CELLULAR VOICE LO REF CELLULAR VOICE SIG COAX COAX BK COAX CU XM COAX WH COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LF SPEAKER (-) CTRL 1 LF SPEAKER SIG (-) 1 LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR SPEAKER (+) CTRL LR SPEAKER SIG (-) MUTE NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO RED/BLU WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RF SPEAKER (-) CTRL 1 RF SPEAKER SIG (-) 1 RIGHT RIGHT AUXILIARY AUDIO SIG 2 RR SPEAKER (+) CTRL RR SPEAKER SIG (-) SEATS SYSTEM SEEK DOWN SEEK UP SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP LEFT VIO WIRE VOL (-) W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT WIRE YEL WIRE YEL/BLK WIRE

2.0L TURBO 3.6L AUXILIARY AUDIO COMMON SIG AUXILIARY AUDIO SCREEN 2 AUXILIARY DETECTION SIG BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CELLULAR TELEPHONE LO REF CELLULAR TELEPHONE SIG COAX COAX BK COAX CU XM COAX WH COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL DIMMING DOWN FUSE 10 FUSE 16 FUSE 20 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLU WIRE GROUND GROUND DISTRIBUTION SYSTEM GRY WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED INDICATOR INFOTAINMENT REGULATED CTRL INSTRUMENT PANEL FUSE BLOCK LADDER SIG 1 LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH MUTE NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RADIO RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/VIO WIRE RESISTOR RIGHT RIGHT AUXILIARY AUDIO SIG 2 SEATS SYSTEM SEEK DOWN SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK UP LEFT VIO WIRE VOL (-) VOL SEEK UP VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE YEL WIRE