Buick Envision II (2020-2024) starting/charging system Wiring diagrams

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

BLK WIRE BLU WIRE BLU/GRY WIRE BODY CONTROL MODULE CARGO AREA TRIM ACCESSORY POWER RECEPTACLE COMPUTER DATA LINES SYSTEM FROM BATTERY DISTRIBUTION ENGINE COMPARTMENT FUSE BLOCK (DIAGRAM 1 OF 8) FROM ENGINE WIRING HARNESS JUNCTION BLOCK (DIAGRAM 2 OF 8) FROM ENGINE WIRING HARNESS JUNCTION BLOCK (DIAGRAM 4 OF 8) GEAR SHIFT CONTROL MODULE LEFT REAR BODY STRUCTURE STOP LAMP LEFT REAR LIFTGATE COMBINATION LAMP LIGHTING CONTROL MODULE MULTI-FUNCTION POWER SUPPLY CONVERTER N/A PARKING BRAKE CONTROL SWITCH RED WIRE RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/VIO WIRE RED/WHT WIRE RED/YEL WIRE RIGHT REAR LIFTGATE COMBINATION LAMP STARTING/CHARGING SYSTEM VIDEO PROCESSING MODULE VIO/GRN WIRE WHT WIRE YEL/BLK WIRE

A/C COMPRESSOR CLTH RLY CTRL A/C REFRIGERANT PRESSURE SENS SIG ACCELERATOR PEDAL POS LOW REF 1 ACCELERATOR PEDAL POS LOW REF 2 ACCELERATOR PEDAL POS SIG 1 ACCELERATOR PEDAL POS SIG 2 ACCELERATOR PEDAL POSITION SENSOR AIR CONDITIONING SYSTEM AMBIENT AIR TEMP SENS SIG AMBIENT AIR TEMPERATURE SENSOR ANTI-THEFT SYSTEM BATT POS VOLT BLK/BLU WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE BRK POS SENS SIG BRN/RED WIRE CAMSHAFT MTR POS SENS 1 SIG CAMSHAFT MTR POS SENS 2 SIG CAMSHAFT POS MTR CTRL A CAMSHAFT POS MTR CTRL B CAMSHAFT POS MTR CTRL C CAMSHAFT POS MTR CTRL D CAMSHAFT POS SENS 2 GND CAN BUS (+) 3 SERIAL DATA CAN BUS (+) SERIAL DATA MASS AIR FLOW SENS SIG CAN BUS (-) 2 SERIAL DATA CAN BUS (-) SERIAL DATA COMPUTER DATA LINES SYSTEM CRUISE CONTROL SYSTEM CRUISE/ETC/TCC BRAKE SIG CYLINDER 2 FRONT SOL CTRL CYLINDER 2 POS SENS SIG CYLINDER 2 REAR SOL CTRL CYLINDER 3 FRONT SOL CTRL CYLINDER 3 POS SENS SIG CYLINDER 3 REAR SOL CTRL CYLINDER 4 FRONT SOL CTRL CYLINDER 4 POS SENS SIG CYLINDER 4 REAR SOL CTRL ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) EXHAUST LOBE AXIAL POS SIG 1 EXHAUST LOBE AXIAL POS SIG 2 FUEL PUMP PRIMARY RLY CTRL GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BRN WIRE GRY/YEL WIRE HOOD STATUS A SIG HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK INTAKE LOBE AXIAL POS SIG 1 INTAKE LOBE AXIAL POS SIG 2 LEFT FRONT STRUT TOWER) LIN BUS 4 MASS AIRFLOW SENSOR (IN INTAKE AIR DUCT) POWERTRAIN RLY COIL CTRL PWR MAIN RLY FUSE SPLY VOLT 2 RED/GRN WIRE RUN/CRANK IGN 1 VOLT SIG GND POWERTRAIN MAIN RLY FUSED SPLY VOLT 1 STARTER ENABLE RLY CTRL STARTER PINION SOL ACT RLY CTRL STARTING/CHARGING SYSTEM STEP CAM A CTRL STEP CAM B CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE

ABSOLUTE PRESS SENS SIG BLK/BRN WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/GRY WIRE BLU/RED WIRE BLU/VIO WIRE BLU/WHT WIRE BRN WIRE BRN/BLU WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM COOLANT TEMP SENS 2 SIG DIFFERENTIAL PRESS SENS SIG ENG OIL PUMP CTRL ENGINE BLOCK COOLANT TEMP SIG ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CTRL MODULE LIN BUS 1 ENGINE CTRL MODULE LIN BUS 2 ENGINE CTRL SENS 5 VOLT REF 1 ENGINE CTRL SENS LOW REF 1 ENGINE CTRL SENS LOW REF 2 ENGINE OIL TEMPERATURE SENSOR EVAP PURGE PUMP PRESS SIG EXHAUST SENS 1 VOLT REF FEEDBACK SIG FIELD DUTY CYCLE SIG FUEL PRESSURE SENSOR FUEL PUMP HIGH CTRL FUEL PUMP LOW CTRL FUEL RAIL PRESS SENS SIG FUEL TANK PRESSURE SENSOR GRN WIRE GRN/BLU WIRE GRN/GRY WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE GRY/BLU WIRE GRY/VIO WIRE GRY/WHT WIRE GRY/YEL WIRE HEATER LOW CTRL BANK 1 SENS 1 HI VOLT CTRL CYLINDER 1 HI VOLT CTRL CYLINDER 3 POWERTRAIN MAIN RLY FUSED SPLY VOLT 1 HI VOLT SPLY CYLINDER 1 HI VOLT SPLY CYLINDER 3 IGNITION CTRL 1 IGNITION CTRL 3 INTAKE POSI SENS 1 INTAKE SENS 1 VOLT REF LEFT FRONT STRUT TOWER) NCA WIRE OIL PRESS SENS SIG OIL PUMP MOTOR CTRL OIL TEMP SENS SIG POWERTRAIN MAIN RLY FUSED VOLT 5 RADIATOR COOLANT TEMPERATURE SENSOR RIGHT SIDE OF RADIATOR) SIG GND STARTING/CHARGING SYSTEM TEMP SENS SIG VALVE POS SIG VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE WAKEUP SIG WHT WIRE WHT/RED WIRE YEL WIRE YEL/BLK WIRE YEL/BRN WIRE YEL/GRY WIRE YEL/RED WIRE YEL/VIO WIRE YEL/WHT WIRE