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

2.0L TURBO 3.6L BATT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BLK WIRE BUS 12 COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE DATA FUSE 10 FUSE 5 GRN WIRE GRN/BLK WIRE GROUND GRY/VIO WIRE GY HUD SIG HEAD-UP DISPLAY HEAD-UP DISPLAY SWITCH HEADLAMP HOT AT ALL TIMES HUD HUD SIG HUD SW LOW REF HUD SW SIG ILL INFO INSTRUMENT PANEL FUSE BLOCK LOCAL INTERCONN ECT NETWORK BUS 12 LOGIC INSTRUMENT CLUSTER LVDS MOST SER NETWORK POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER (REAR OF CENTER FLOOR CONSOLE) RED/BLU WIRE RED/GRN WIRE UNDERHOOD FUSE BLOCK WHT/GRN WIRE YEL WIRE

"CHECK ENGINE" IND CTRL ABS IND. ADAPTIVE FORWARD LIGHTING (AFL) LIGHT IND AIR BAG IND BATT POSITIVE VOLT BLK WIRE BRAKE IND BRN/WHT WIRE CHARGE IND COMPUTER DATA LINES SYSTEM CRUISE IND DOOR AJAR IND DOOR LOCK IND DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE IND ESC IND ESC OFF IND ETHERNET BUS 7 (+) MOST SERIAL DATA (-) FORWARD COLLISION ALERT LED CTRL FRONT FOG LAMP IND FUEL GAUGE GRN/BLK WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HEAD-UP DISPLAY CIRCUIT HIGH BEAM LAMP IND HOT W/ IGNITION MAIN RELAY ENERGIZED HUD SIG IGN 1 VOLT INSTRUMENT CLUSTER KM/H MPH IND LANE DEPARTURE WARNING (LDW) IND LEFT TURN IND LIN BUS 12 LOGIC LOW OIL PRESSURE IND LOW SPD GMLAN SERIAL DATA LOW TIRE PRESSURE IND LOW WASHER FLUID IND CTRL LVDS GY MALFUNCTION IND MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE MOST CTRL MOST SERIAL DATA (+) NAVIGATION SYSTEM OIL LEVEL IND PARK IND PARK LAMPS IND REAR FOG LAMP IND RED/BLU WIRE REFLECTED LED DISPLAY DIMMING CTRL RIGHT TURN IND RPM IND SEAT BELT IND SECURITY IND SERVICE PARK BRAKE IND SPEEDOMETER TACHOMETER TRACTION IND TRACTION OFF IND UNDERHOOD FUSE BLOCK VIO WIRE VIO/GRY WIRE W/ DRIVER INFO ENHANCED DISPLAY W/O DRIVER INFO ENHANCED DISPLAY WHT/GRN WIRE WHT/VIO WIRE WIPER/ WASHER SYSTEM

BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY FUSE 20 GRN WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE GRY/YEL WIRE HATCHBACK HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK LEFT LICENSE PLATE LAMP LIFT GLASS/REAR COMPT LID MTR RELEASE CTRL LIFTGATE AJAR SWITCH SIGNAL 1 LIFTGATE HANDLE SWITCH LIFTGATE LATCH ASSEMBLY LIFTGATE UNLATCH RELAY LOGIC LOW SPEED GMLAN SERIAL DATA POWER DISTRIBUTION SYSTEM REAR CLOSURE FUSE REAR CLOSURE HANDLE SW OPEN SIG RED WIRE RED/BRN WIRE RIGHT LICENSE PLATE LAMP SERIAL DATA UNDERHOOD FUSE BLOCK VIO/GRY WIRE VIO/WHT WIRE WAGON WHT WIRE YEL WIRE YEL/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 BRN/VIO WIRE CAMERA SIG 2 COAX COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX 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 YE COAX DISPLAY SIG WH COAX

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 COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX 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 (-) VOICE RECOGNITION AUDIO 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 VOL (-) W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WHT/BLK WIRE WHT/BLU WIRE YE COAX DISPLAY SIG WH COAX

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 COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX 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 YE COAX DISPLAY SIG WH COAX

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 BK COAX BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE BRN/VIO WIRE BRN/WHT WIRE CELLULAR VOICE LO REF CELLULAR VOICE SIG COAX COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX XM DIMMING FUSE 10 FUSE 16 FUSE 20 FUSE 31 FUSE 35 FUSE 39 FUSE 42 FUSE 5 GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/YEL 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 LEFT AUXILIARY AUDIO SIG 2 LEFT STEERING WHEEL CONTROLS SWITCH LF LOW LEVEL AUDIO REF LF LOW LEVEL AUDIO SIG LOGIC RIGHT STEERING WHEEL CONTROLS SWITCH LR LOW LEVEL AUDIO REF LR LOW LEVEL AUDIO SIG + 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 RF LOW LEVEL AUDIO REF RF LOW LEVEL AUDIO SIG RIGHT RIGHT AUXILIARY AUDIO SIG 2 RR LOW LEVEL AUDIO REF RR LOW LEVEL AUDIO 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 DOWN VIO WIRE VOL (-) VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WH COAX WHT/BLK WIRE YEL WIRE YEL/BLK WIRE

2.0L TURBO 3.6L BAT POS VOLT BATT POSITIVE VOLT BATTERY FUSE BLOCK BK COAX BLK WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BRN WIRE BRN/BLU WIRE CELLULAR VOICE LO REF CELLULAR VOICE SIG COAX COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX XM 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 LEFT UP 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 SEEK UP DOWN SEL SERIAL DATA BUS 10 LOW SPD GMLAN SERIAL DATA 2 STEERING WHEEL AIR BAG COIL STEERING WHEEL) UNDERHOOD FUSE BLOCK VIO WIRE VOL (-) W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WH COAX 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 BK COAX BLK WIRE BLK/YEL WIRE BLU WIRE BRN WIRE CELLULAR TELEPHONE LO REF CELLULAR TELEPHONE SIG COAX COMPUTER DATA LINES SYSTEM COOLING FAN/ DC DC CONVERTER 2 FUSE CTRL CU COAX XM 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 LEFT UP 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 VIO WIRE VOL (-) VOL SEEK UP VOLT 2 W/ HEAD UP DISPLAY W/O HEAD-UP DISPLAY WH COAX WHT/BLK WIRE YEL WIRE

"CHECK ENGINE" IND CTRL A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESS SENS SIG A/C REFRIGERANT PRESSURE SENSOR ACCELERATOR PEDAL POSITION SENSOR ACCESSORY WAKEUP SER DATA AIR CONDITIONING SYSTEM AMBIENT AIR TEMPERATURE SENSOR ANTI-LOCK BRAKES SYSTEM APP LOW REF 1 APP LOW REF 2 APP SIG (1) APP SIG (2) ATT SENS SIG BATT POS VOLT BATTERY FUSE BLOCK BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRY WIRE BRAKE PEDAL POSITION SENSOR BRK POS SENS LOW REF BRK POS SENS SIG BRK VACUUM SENS SIG BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLING FAN CTRL SIG COOLING FANS SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DOOR LOCKS, ANTI-THEFT SYSTEMS ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) EVAPORATIVE EMISSION VENT SOLENOID VALVE FUEL PUMP PRIMARY RLY CTRL FUSE 2 GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 7 HOOD OPEN SW SIG HOT AT ALL TIMES HTR RLY CTRL IGN MODE SW MODE CTRL BACKUP HUMIDITY SENS SIG IMS MODE SW LOW REF INDUCTION AIR TEMP SENS SIG MAIN RLY FUSED SPLY 3 MASS AIR FLOW SENS SIG POWERTRAIN MAIN RLY FUSED SPLY 1 POWERTRAIN MAIN RLY FUSED SPLY 2 POWERTRAIN RELAY COIL CTRL RED/BRN WIRE RED/WHT WIRE RED/YEL WIRE RUN/CRANK IGNITION 1 VOLT SENS HI REF BANK 1 STARTER ENABLE RLY CTRL STARTER PINION SOL RLY CTRL STARTING/CHARGING SYSTEM TRANSMISSION CONTROL MODULE/ ENGINE CONTROL MODULE FUSE TRANSMISSION PARK/NEUTRAL SIG 1 TRANSMISSIONS SYSTEM UNDERHOOD FUSE BLOCK VIO/BLU WIRE VIO/GRN WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/VIO WIRE YEL/WHT WIRE