Buick Regal VI (2017-2020) app low ref 1 Wiring diagrams

"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

"CHECK ENGINE" IND CTRL A/C COMPRESSOR CLUTCH RLY CTRL A/C REFRIGERANT PRESSURE SENSOR AAT SENS SIG ACCESSORY WAKEUP SER DATA AFTER BOIL HTR RLY CTRL AIR CONDITIONING SYSTEM AMBIENT AIR TEMPERATURE SENSOR APP LOW REF 1 APP LOW REF 2 APP SIG (1) APP SIG (2) BATT POS VOLT BLK/BLU WIRE BLK/GRN 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 DOOR LOCKS, ANTI-THEFT SYSTEMS ENG CTRL SENS LOW REF 2 ENGINE CONTROL MODULE (LEFT FRONT OF ENGINE COMPT) FUEL PUMP PRIMARY RLY CTRL FUSE 9 GRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 HI SPD GMLAN SER DATA (+) 3 HI SPD GMLAN SER DATA (-) 1 CRUISE/ETC/TCC BRK SIG HI SPD GMLAN SER DATA (-) 7 HOOD OPEN SW SIG HOT AT ALL TIMES HUMIDITY SENS SIG IMS MODE CTR BACKUP INSTRUMENT PANEL FUSE BLOCK MAF SENS SIG POWERTRAIN MAIN RLY FUSED SPLY 1 POWERTRAIN MAIN RLY FUSED SPLY 2 POWERTRAIN MAIN RLY FUSED SPLY 3 POWERTRAIN RLY COIL CTRL PRESS SENS SIG RED/WHT WIRE RUN/CRANK IGN 1 VOLT STARTER ENABLE RLY CTRL STARTER RLY CTRL STARTING/CHARGING SYSTEM TRANSMISSIONS SYSTEM 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/RED WIRE YEL/VIO WIRE YEL/WHT WIRE