Buick Envision II (2020-2024) (below center of instrument panel, on floor) Wiring diagrams

AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 3 SERIAL DATA BATT POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/BRN WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT AUTOMATIC TRANSMISSION MANUAL SHIFT AUXILIARY POSITION SWITCH RED WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE STEERING WHEEL AIR BAG COIL TAP UP/TAP DOWN SW SIG VIO WIRE VIO/BLK WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

A/C COMPRESSOR SOLENOID VALVE CONTROL A/C EVAPORATOR TEMPERATURE SENSOR SIGNAL AIR INLET VALVE ACTUATOR AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLK/YEL WIRE BLOWER MOTOR SPEED CONTROL BLOWER SPEED FEEDBACK SIGNAL BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CONTROL MODULE LIN BUS 6 COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY DRIVER SOLAR SENSOR SIGNAL ENGINE COOLANT TEMPERATURE GAUGE GRN/BLK WIRE GRN/BLU WIRE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC REMOTE ENABLE SIGNAL HVAC SYSTEM ENABLE SIGNAL INSIDE AIR TEMPERATURE SENSOR SIGNAL INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIN BUS 1 LOGIC MODE VALVE ACTUATOR RED/WHT WIRE RED/YEL WIRE RIGHT TEMPERATURE VALVE ACTUATOR SENSOR LOW REFERENCE VIO/GRY WIRE WHT WIRE WHT/YEL WIRE YEL/BLK WIRE

A/C EVAPORATOR TEMP SENS SIG ACCELERATE SW SIG AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM AIR CONDITIONING SYSTEM AMBIENT LIGHT SENS SIG ANTI-LOCK BRAKES SYSTEM ANTI-THEFT, DOOR LOCKS SYSTEMS AUTO HI BEAM ASSIST SW SIG AUTO WIPER ON SIG AUTOSAR CAN BUS (-) 2 SER DATA BATT POS VOLT BLK WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/YEL WIRE BLOWER MTR SPD CTRL BLOWER SPD FEEDBACK SIG BLU WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CONTROL MODULE (BELOW CENTER OF INSTRUMENT PANEL, ON FLOOR) BRN/BLK WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DRIVER SOLAR SENS SIG ENHANCED DR MODE 1 SW SIG EXTERIOR LIGHTS SYSTEM AIR CONDITIONING SYSTEM GRN WIRE GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLK WIRE GRY/BRN WIRE GRY/GRN WIRE GRY/WHT WIRE HAZARD WARNING SW SIG HEADLAMP SW FLASH SIG HEADLAMP SW OFF SIG HEADLAMP SW ON SIG HEADLAMP SW PARK LAMP SIG HEADLIGHTS SYSTEM HIGH BEAM SIG HILL DESCENT CTRL SW SIG HORN SW SIG HORNS SYSTEM HOT AT ALL TIMES HVAC REMOTE ENABLE SIG HVAC SYSTEM ENABLE SIG I/P LAMP DIMMER SW SIG IGN MODE SW ACCESSORY LED SIG IGN MODE SW MODE VOLT IMMOBILIZER ANTENNA LOW SIG IMMOBILIZER ANTENNA SIG (+) INSIDE AIR TEMP SENS SIG INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK INTERIOR LAMP CTRL IP ACCENT LIGHTING CTRL IP LAMP DIMMER SW LOW REF LADDER LOW REF LANE DEPARTURE WARNING DISABLE SW SIG LED BACKLIGHT DIMMING CTRL 1 LEFT TURN SIG SW SIG LIN BUS 12 LIN BUS 5 LIN BUS 6 LR SEAT HEATING SW SIG MODE SW START LED SIG NAVIGATION SYSTEM OPEN/CLOSE SW SIG PARKING ASSIST DISABLE LED SIG PARKING ASSIST DISABLE SIG PARKING ASSIST DISABLE SW SIG PASSIVE ENTRY ANTENNA 1 HI SIG PASSIVE ENTRY ANTENNA 1 LOW SIG POWER DISTRIBUTION SYSTEM POWER RELAY 2 COIL CTRL REAR WINDOW WIPER SW SIG RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RIGHT TURN SIG SW SIG RR SEAT HEATING SW SIG RUN/CRANK RELAY COIL CTRL SEATS SYSTEM SENS LOW REF STARTING/CHARGING SYSTEM STOP/START IND CTRL STOP/START SW SIG TAP UP/TAP DOWN SW SIG TRACTION CTRL SW SIG TRANSMISSIONS SYSTEM UP/DOWN SW SIG VIO/BLU WIRE VIO/YEL WIRE WARNING IND CTRL WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER SW SIG WINDSHIELD WIPER SW LOW REF WINDSHIELD WIPER SW LOW SIG WIPER/WASHER SYSTEM WIPER/WASHER SYSTEM CRUISE CONTROL SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/GRY WIRE

A/C COMPRESSOR SOL VLV CTRL ACCENT LIGHTING CTRL AIR CONDITIONING SYSTEM AUTOSAR CAN BUS (-) 2 SER DATA BLK/BRN WIRE BLU WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/VIO WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COMPUTER DATA LINES SYSTEM DOOR LOCKS SYSTEM COURTESY LAMP CTRL CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG DEFOGGER SYSTEM DIMMING CTRL 1 DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS GRN/BLK WIRE GRN/BLU WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOOD STATUS B SIG HORN RELAY CTRL HORNS SYSTEM LF ANTENNA SIG LOW LF DOOR OPEN SW SIG LF DR LOCK ACTUATOR LOCK CTRL LF EXT DR HANDLE SW UNLK SIG LIFTGATE SENS LAMP CTRL LIN BUS 1 LIN BUS 10 LIN BUS 11 LIN BUS 16 LIN BUS 3 LIN BUS 4 LIN BUS 8 LIN BUS 9 LOCK ACTUATORS UNLOCK CTRL 1 LOCK ACTUATORS UNLOCK CTRL 2 LR DR EXTERIOR SW LOCK SIG LR DR LOCK ACTUATOR LOCK CTRL LR HAPTIC MOVEMENT MTR CTRL LR SEAT HEATING HI IND CTRL NAVIGATION SYSTEM PASSIVE ENTRY ANTENNA 2 HI SIG PASSIVE ENTRY ANTENNA 2 LOW SIG PASSIVE ENTRY ANTENNA HI SIG PASSIVE ENTRY ANTENNA LOW SIG PASSIVE ENTRY LF ANTENNA SIG HI R CLOSURE HANDLE SW OPEN SIG REAR DEFOGGER RELAY CTRL RF DOOR ANTENNA SIG HI RF DOOR ANTENNA SIG LOW RF DR LOCK ACTUATOR LOCK CTRL RF EXT DR HANDLE SW UNLK SIG RR DR EXTERIOR SW UNLOCK SIG RR DR LOCK ACTUATOR LOCK CTRL RR HAPTIC MOVEMENT MTR CTRL RR SEAT HEATING HI IND CTRL SEATS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM UNLATCH ACTUATOR UNLATCH CTRL VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/YEL WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE

ACCEL PEDAL POS LOW REF 1 ACCEL PEDAL POS LOW REF 2 ACCEL PEDAL POS SIG 1 ACCEL PEDAL POS SIG 2 ACCELERATOR PEDAL POSITION SENSOR AUTOSAR AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 3 SERIAL DATA BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENS SIG BRAKE PEDAL POSITION SENSOR BRAKE POS SENS SIG BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRN/GRN WIRE BRN/RED WIRE BRN/WHT WIRE CAN BUS (-) 5 COMPUTER DATA LINES SYSTEM CRUISE CTRL SET/COAST/ RES/ACC SW SIG CRUISE IND CRUISE/ETC/TCC BRK SIG CRUISE/ETC/TCC/BRAKE SIG DISTANCE SENS CRUISE CTRL GAP UP/DOWN SW SIG DRIVER INFORMATION CENTER DISPLAY ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CTRL VEHICLE SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF 2 ENGINE WIRING HARNESS JUNCTION BLOCK GND 21 GRN WIRE GRN/WHT WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT STRUT TOWER) LOGIC MULTI-FUNCTION POWER SUPPLY CONVERTER RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RUN/CRANK RUN/CRANK IGN 1 VOLT SERIAL DATA SERIAL DATA CAN BUS (-) 5 STEERING WHEEL AIR BAG COIL STEERING WHEEL RESISTOR LADDER LOW RE THROTTLE BODY (ON INTAKE MANIFOLD) THRTL ACTUATOR CLOSE CTRL THRTL ACTUATOR OPEN CTRL THRTL POS SENS LOW REF THRTL POS SENS SENT 1 SIG VIO/BLK WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/WHT WIRE

AIR CONDITIONING SYSTEM AMBIENT LIGHT SENSOR SIGNAL AUTO HIGH BEAM ASSIST SWITCH SIGNAL AUTO HIGH BEAM SWITCH AUTO PARK BCM LIN BUS 6 BLK WIRE BLK/WHT WIRE BLK/YEL WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM GEAR SHIFT CONTROL MODULE GRN/BRN WIRE GRN/VIO WIRE GRN/YEL WIRE GRY/BRN WIRE HEAD OFF HEADLAMP SWITCH HEADLAMP SWITCH FLASH SIGNAL HEADLAMP SWITCH OFF SIGNAL HEADLAMP SWITCH ON SIGNAL HI FTP HIGH BEAM SELECT SWITCH HIGH BEAM SIGNAL HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC MULTI-FUNCTION POWER SUPPLY CONVERTER PARK BRAKE SWITCH PARKING BRAKE CONTROL SWITCH RED/GRN WIRE RED/GRY WIRE SENSOR LOW REFERENCE SUNLOAD, AMBIENT LIGHT, SECURITY INDICATOR SENSOR TURN SIGNAL SWITCH WHT WIRE WHT/BLU WIRE WHT/VIO WIRE YEL/BRN WIRE

BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE BRN/GRY WIRE BRN/WHT WIRE ENGINE WIRING HARNESS JUNCTION BLOCK GRN/WHT WIRE HIGH NOTE HORN HORN RELAY HORN RLY CTRL HORN SW SIG HOT AT ALL TIMES LOW NOTE HORN RED/GRN WIRE STEERING WHEEL AIR BAG COIL STEERING WHEEL HORN CONTACT

A/C COMPRESSOR SOLENOID VALVE CONTROL A/C EVAPORATOR TEMPERATURE SENSOR SIGNAL AIR INLET VALVE ACTUATOR AUTOSAR CAN BUS (+) 2 SERIAL DATA BATT POS VOLT BATTERY POSITIVE VOLTAGE BLK WIRE BLK/YEL WIRE BLOWER MOTOR SPEED CONTROL BLOWER SPEED FEEDBACK SIGNAL BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CONTROL MODULE LIN BUS 6 COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY DRIVER SOLAR SENSOR SIGNAL ENGINE COOLANT TEMPERATURE GAUGE GRN/BLK WIRE GRN/BLU WIRE GRN/VIO WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED HVAC REMOTE ENABLE SIGNAL HVAC SYSTEM ENABLE SIGNAL INSIDE AIR TEMPERATURE SENSOR SIGNAL INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIN BUS 1 LOGIC MODE VALVE ACTUATOR RED/WHT WIRE RED/YEL WIRE SENSOR LOW REFERENCE VIO/GRY WIRE WHT WIRE WHT/YEL WIRE YEL/BLK WIRE

AUTOSAR CAN BUS (+) 5 SERIAL DATA BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BODY CTRL MODULE LIN BUS 5 AUTOSAR CAN BUS (+) 2 SERIAL DATA GND BRN/BLK WIRE BRN/GRN WIRE COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLK WIRE GRY/BLU WIRE HOT AT ALL TIMES INSTRUMENT CLUSTER INSTRUMENT PANEL LOW FREQUENCY ANTENNA INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT EXTERIOR DOOR HANDLE SWITCH UNLOCK SIG LF DOOR LOCK ACTUATOR CTRL LF DOOR OPEN SWITCH SIG LIN BUS 16 LOCK ACTUATOR UNLOCK CTRL 1 LOGIC PASSIVE ENTRY HI SIG PASSIVE ENTRY LOW SIG REAR BUMPER LOW FREQUENCY ANTENNA REAR CONSOLE LOW FREQUENCY ANTENNA RED/VIO WIRE RED/YEL WIRE REMOTE FUNCTION ACTUATOR MODULE RF DOOR LOCK ACTUATOR CTRL SECURITY IND SIG GND VIO WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/GRY WIRE YEL/GRN WIRE

ALL WHEEL DRIVE POWER TRANS UNIT POS SENS LOW REF ALL WHEEL DRIVE POWER TRANSFER UNIT MOTOR CTRL A ALL WHEEL DRIVE POWER TRANSFER UNIT MOTOR CTRL B ALL WHEEL DRIVE POWER TRANSFER UNIT MOTOR SHIELD ALL WHEEL DRIVE POWER TRANSFER UNIT POS SENS SIG ALL WHEEL DRIVE POWER TRANSFER UNIT POS SENS VOLT REF AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR CAN BUS (-) 5 SERIAL DATA AUTOSAR CAN BUS (-) 2 SERIAL DATA BATT POSITIVE VOLT BATTERY POSITIVE VOLT BLK WIRE BLK/VIO WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/BRN WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRN WIRE BRN/GRN WIRE BRN/VIO WIRE COMPUTER DATA LINES SYSTEM DIFFERENTIAL CLUTCH PUMP DRIVER INFORMATION CENTER DISPLAY ENGINE WIRING HARNESS JUNCTION BLOCK ENHANCED DRIVER MODE 1 SW SIG GRN WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/RED WIRE GRY/WHT WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LIMITED SLIP DIFFERENTIAL CLUTCH VALVE LOGIC NCA WIRE POWER TRANSFER UNIT SHIFT ACTUATOR REAR DRIVE CONTROL MODULE (AT REAR DIFFERENTIAL) RED WIRE RED/BRN WIRE RED/WHT WIRE RIDE CONTROL SWITCH VIO/BRN WIRE VIO/GRN WIRE WHT WIRE WHT/BLU WIRE WHT/RED WIRE WHT/VIO WIRE YEL WIRE YEL/BRN WIRE YEL/GRN WIRE