Buick Regal VI (2017-2020) malfunction indicator lamp/shift solenoid fuse Wiring diagrams

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

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

ACCY WAKEUP SER DATA BATT POS VOLT BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOME LAMP OFF IND CTRL DR LK ACT LK CTRL DR LK ACT LK CTRL 2 DR LK ACT UNLK CTRL DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRV DR LK SW LK SIG DRV DR LK SW UNLK SIG DRV DR LK/ FRONT OVERHEAD CONSOLE ASSEMBLY FUEL FILL DOOR LOCK ACTUATOR FUSE 3 GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK KEY SW SIG LEFT REAR DOOR LATCH ASSEMBLY LF DR AJAR LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH ASSEMBLY LIN SER LOGIC DRIVER WINDOW MOTOR LOGIC DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH LOGIC LEFT REAR WINDOW SWITCH LOW SPD GMLAN SER DATA LR DR AJAR SW SIG LT HDLP LO BEAM CTRL MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE PASS DR LK SW LK CTRL PASS DR LK SW UNLK CTRL RED/BRN WIRE REMOTE FUNCTION ACT CTRL REMOTE FUNCTION ACT LOW REF RFA RECEIVE SIG RFA TRANSMIT SIG RT HDLP LO BEAM CTRL SEC IND CTRL SER DATA BUS 4 SER DATA COMM ENABLE SW SIG UNDERHOOD FUSE BLOCK UNLOCK SIG VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O SUNROOF WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

ACCY IGN VOLT ACCY WAKEUP SER DATA BATT POS VOLT BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOME LAMP OFF IND CTRL DR LK ACT LK CTRL DR LK ACT LK CTRL 2 DR LK ACT UNLK CTRL DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRV DR LK SW LK SIG DRV DR LK SW UNLK SIG DRV DR LK/ FRONT OVERHEAD CONSOLE ASSEMBLY FUEL FILL DOOR LOCK ACTUATOR FUSE 20 FUSE 3 FUSE 5 GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK KEY SW SIG LEFT REAR DOOR LATCH ASSEMBLY LF DR AJAR SW SIG LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH ASSEMBLY LIN SER LIN SER DATA BUS 3 LIN SER DATA BUS 4 LOGIC DRIVER WINDOW MOTOR LOGIC DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH LOGIC LEFT REAR WINDOW SWITCH LOW SPD GMLAN SER DATA LR DR AJAR SW SIG LT HDLP LO BEAM CTRL MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE PASS DR LK SW LK CTRL PASS DR LK SW UNLK CTRL PUSH BUTTON START SIG RED/BRN WIRE RED/YEL WIRE RT HDLP LO BEAM CTRL RUN/CRANK IGN 1 VOLT SEC IND CTRL SER DATA COMM ENABLE UNDERHOOD FUSE BLOCK UNLOCK SIG VIO WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/VIO 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

8 SPEED 9 SPEED AUTOMATIC TRANSMISSION ASSEMBLY BLK WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS DRIVER BACK SEAT BLOWER MOTOR DRIVER CUSHION SEAT BLOWER MOTOR ENGINE CONTROL MODULE ENGINE CONTROL MODULE/IGNITION FUSE FROM ENGINE CONTROLS IGNITION RELAY (DIAGRAM 7 OF 8) FUEL PUMP DRIVER CONTROL MODULE FUSE 14 FUSE 28 GRN/VIO WIRE HEADLAMP LEVELING FUSE HEATED STEERING WHEEL FUSE HVAC CONTROL MODULE IGNITION MAIN RELAY INSIDE REAR VIEW MIRROR INSTRUMENT CLUSTER INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL/IGNITION FUSE LEFT HEADLAMP ASSEMBLY (W/ LED HEADLAMPS) LEFT HEADLAMP CONTROL MODULE LEFT HEADLAMP/ CORNERING LAMP CONTROL MODULE MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE NCA WIRE NOT USED PASSENGER BACK SEAT BLOWER MOTOR PASSENGER CUSHION SEAT BLOWER MOTOR REAR VIEW CAMERA REAR VISION CAMERA/VENTILATION FUSE RED WIRE RIGHT HEADLAMP ASSEMBLY (W/ LED HEADLAMPS) RIGHT HEADLAMP CONTROL MODULE RIGHT HEADLAMP/ CORNERING LAMP CONTROL MODULE STARTER RELAY STEERING COLUMN LOCK FUSE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATING CONTROL MODULE TO POWER SUPPLY TRANSFORMER (DIAGRAM 6 OF 8) TO REAR BODY FUSE BLOCK (DIAGRAM 5 OF 8) TRAILER CONNECTOR TRANSMISSION CONTROL MODULE TRANSMISSION CONTROL MODULE/IGNITION FUSE VIO/BLK WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE W/ FRONT SEAT VENTILATION WAGON

ACCY WAKEUP SER DATA BATT POS VOLT BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOME LAMP OFF IND CTRL DR LK ACT LK CTRL DR LK ACT LK CTRL 2 DR LK ACT UNLK CTRL DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRV DR LK SW LK SIG DRV DR LK SW UNLK SIG DRV DR LK/ FRONT OVERHEAD CONSOLE ASSEMBLY FUEL FILL DOOR LOCK ACTUATOR FUSE 3 GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/WHT WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK KEY SW SIG LEFT REAR DOOR LATCH ASSEMBLY LF DR AJAR LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH ASSEMBLY LIN SER LOGIC DRIVER WINDOW MOTOR LOGIC DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH LOGIC LEFT REAR WINDOW SWITCH LOW SPD GMLAN SER DATA LR DR AJAR SW SIG LT HDLP LO BEAM CTRL MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE PASS DR LK SW LK CTRL PASS DR LK SW UNLK CTRL RED/BRN WIRE REMOTE FUNCTION ACT CTRL REMOTE FUNCTION ACT LOW REF RFA RECEIVE SIG RFA TRANSMIT SIG RT HDLP LO BEAM CTRL SEC IND CTRL SER DATA BUS 4 SER DATA COMM ENABLE SW SIG UNDERHOOD FUSE BLOCK UNLOCK SIG VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE W/O SUNROOF WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/GRN WIRE YEL/VIO WIRE

ACCY IGN VOLT ACCY WAKEUP SER DATA BATT POS VOLT BLK WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BODY CONTROL MODULE (LOWER CENTER OF DASH) BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM DATA BUS 3 DOME LAMP OFF IND CTRL DR LK ACT LK CTRL DR LK ACT LK CTRL 2 DR LK ACT UNLK CTRL DRIVER DOOR LATCH ASSEMBLY DRIVER DOOR LOCK SWITCH DRV DR LK SW LK SIG DRV DR LK SW UNLK SIG DRV DR LK/ FRONT OVERHEAD CONSOLE ASSEMBLY FUEL FILL DOOR LOCK ACTUATOR FUSE 20 FUSE 3 FUSE 5 GRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY WIRE HEADLIGHTS SYSTEM HOOD AJAR SW SIG HORN RLY CTRL HORNS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IND DIMMING CTRL INSTRUMENT PANEL FUSE BLOCK KEY SW SIG LEFT REAR DOOR LATCH ASSEMBLY LF DR AJAR SW SIG LIFTGATE AJAR SW SIG 1 LIFTGATE LATCH ASSEMBLY LIN SER LIN SER DATA BUS 3 LIN SER DATA BUS 4 LOGIC DRIVER WINDOW MOTOR LOGIC DRIVER WINDOW/OUTSIDE REAR VIEW MIRROR SWITCH LOGIC LEFT REAR WINDOW SWITCH LOW SPD GMLAN SER DATA LR DR AJAR SW SIG LT HDLP LO BEAM CTRL MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE PASS DR LK SW LK CTRL PASS DR LK SW UNLK CTRL PUSH BUTTON START SIG RED/BRN WIRE RED/YEL WIRE RT HDLP LO BEAM CTRL RUN/CRANK IGN 1 VOLT SEC IND CTRL SER DATA COMM ENABLE UNDERHOOD FUSE BLOCK UNLOCK SIG VIO WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL WIRE YEL/VIO WIRE

A/C COMPRESSOR CLUTCH RELAY AEROSHUTTER FUSE AUXILIARY HEATER COOLANT PUMP RELAY BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CANISTER VENT/VIDEO PROCESSING MODULE FUSE COIL FUSE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE FUSE ENGINE CONTROL MODULE/ IGNITION FUSE ENGINE CONTROLS IGNITION RELAY EVAP CTRL FUEL MODULE FUSE FUEL PRESSURE SENSOR FUEL PUMP FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE (UNDER VEHICLE, NEAR FUEL TANK) FUEL PUMP, LEVEL SENSOR ASSEMBLY (TOP OF FUEL TANK) GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/RED WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGNITION COILS FUSE LOW REF LOW REF 2 MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE NCA WIRE POWERTRAIN OFF ENGINE FUSE PRIMARY FUEL LEVEL SENSOR RED/BRN WIRE RED/VIO WIRE RED/YEL WIRE RELAY CONTROL SECONDARY FUEL LEVEL SENSOR SENSOR SIGNAL SERIAL DATA SERIAL DATA (-) 7 SHIELD GND SHUNT FUSE UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE W/ 5-LINK REAR AXLE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE

A/C COMPRESSOR CLUTCH RELAY AEROSHUTTER FUSE AUXILIARY HEATER COOLANT PUMP RELAY BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/GRY WIRE BRN/RED WIRE BRN/WHT WIRE CANISTER VENT/VIDEO PROCESSING MODULE FUSE COIL FUSE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE FUSE ENGINE CONTROL MODULE/ IGNITION FUSE ENGINE CONTROLS IGNITION RELAY EVAP CTRL FUEL MODULE FUSE FUEL PUMP FUEL PUMP CTRL FUEL PUMP DRIVER CONTROL MODULE (UNDER VEHICLE, NEAR FUEL TANK) FUEL PUMP, LEVEL SENSOR ASSEMBLY GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGNITION COILS FUSE LOW REF LOW REF 2 MALFUNCTION INDICATOR LAMP/SHIFT SOLENOID FUSE NCA WIRE POWERTRAIN OFF ENGINE FUSE PRIMARY FUEL LEVEL SENSOR RED WIRE RED/BRN WIRE RED/VIO WIRE RLY CTRL SECONDARY FUEL LEVEL SENSOR SENS SIG SER DATA SER DATA (-) 7 SHIELD GND SHUNT FUSE UNDERHOOD FUSE BLOCK VIO WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/YEL WIRE WHT WIRE WHT/BLU WIRE YEL WIRE YEL/RED WIRE