Buick Envision II (2020-2024) (engine harness near breakout to front of intake manifold) Wiring diagrams

ABS IND. ABS/TRACTION CONTROL HILL DESCENT CONTROL SWITCH SIGNAL AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (-) 2 SERIAL DATA GROUND BATTERY POSITIVE VOLTAGE BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENSOR CONTROL BRAKE APPLY SENSOR LOW REF BRAKE APPLY SENSOR SIGNAL BRAKE IND BRAKE PEDAL POSITION SENSOR BRAKE POSITION SENSOR SIGNAL COMPUTER DATA LINES SYSTEM DRIVER INFORMATION CENTER DISPLAY ELECTRIC PARK BRAKE IND ELECTRONIC STABILITY CONTROL IND ELECTRONIC STABILITY CONTROL OFF IND ELECTRONIC STABILITY CONTROL OFF SWITCH ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROL MODULE LIN BUS 1 ENGINE CONTROL MODULE LIN BUS 2 ENGINE CONTROL SENSORS 5 VOLT REFERENCE 1 ENGINE CONTROL VEHICLE SENSORS LOW REFERENCE 2 FLOOR CONSOLE ACCESSORY FUNCTION SWITCH GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE HILL DESCENT CONTROL SWITCH HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC PARK BRAKE IND PARKING BRAKE CONTROL SWITCH RED/GRY WIRE RED/WHT WIRE RED/YEL WIRE TRACTION CONTROL IND TRACTION CONTROL SWITCH SIGNAL 1 VIO/GRY WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE

A/C COMPRESSOR CLUTCH RELAY CONTROL A/C REFRIGERANT PRESSURE SENSOR SIGNAL AMBIENT AIR TEMPERATURE SENSOR SIGNAL BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE ACTUATOR CONTROL CLOSE COOLANT DIVERTER VALVE ACTUATOR CONTROL OPEN COOLANT DIVERTER VALVE POSITION SIGNAL COOLANT TEMPERATURE SENSOR 2 SIGNAL ENGINE BLOCK COOLANT TEMPERATURE SIGNAL ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROL MODULE LIN BUS 4 ENGINE CONTROL SENSORS 5 VOLT REF 1 ENGINE CONTROL SENSORS LOW REFERENCE 1 ENGINE CONTROL SENSORS LOW REFERENCE 2 ENGINE CONTROL VEHICLE SENSORS 5 VOLT REF 1 ENGINE CONTROL VEHICLE SENSORS LOW REF 1 ENGINE CONTROLS SYSTEM ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE INLET COOLANT TEMPERATURE SIGNAL ENGINE INTEGRATED EXHAUST MANIFOLD TEMPERATURE SIG ENGINE OUTLET COOLANT TEMPERATURE SIGNAL GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/VIO WIRE LEFT FRONT STRUT TOWER) LOGIC POWERTRAIN MAIN RELAY FUSED SUPPLY VOLTAGE 5 PVT SERIAL DATA POWERTRAIN CAN BUS (-) SERIAL DATA RED/GRY WIRE RED/YEL WIRE SIGNAL GROUND VIO WIRE VIO/BLU WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

A/C REFRIGERANT PRESSURE SENSOR AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM ENGINE COOLANT PUMP (LOWER LEFT FRONT OF ENGINE) ENGINE COOLANT TEMPERATURE SENSOR 6 GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRY/VIO WIRE LOGIC NCA WIRE RADIATOR COOLANT TEMPERATURE SENSOR RED/GRY WIRE RED/YEL WIRE RIGHT SIDE OF RADIATOR) YEL/BLK WIRE

BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLOCK ENGINE COOLANT FLOW CONTROL VALVE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE ACTUATOR CONTROL CLOSE COOLANT DIVERTER VALVE ACTUATOR CONTROL OPEN COOLANT DIVERTER VALVE POS SIG COOLANT TEMP SENS 2 SIG ENG BLOCK COOLANT TEMP SIG ENG CTRL MOD LIN BUS 1 ENG CTRL MOD LIN BUS 2 ENG CTRL SENS LO REF 1 ENG CTRL VEHICLE SENS 5 VOLT REF 1 ENG CTRL VEHICLE SENS LOW REF 1 ENG INLET COOLANT TEMP SIG ENG INTEGRATED EXHAUST MANIFOLD TEMP SIG ENG OUTLET COOLANT TEMP SIG ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROLS SYSTEM ENGINE COOLANT BYPASS VALVE ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE COOLANT TEMPERATURE SENSOR 6 ENGINE CTRL SENS LOW REF 2 ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/VIO WIRE HOT W/ ENGINE CONTROLS IGNITION RELAY ENERGIZED LEFT FRONT STRUT TOWER) LOGIC RUN/CRANK IGN 1 VOLT SIGNAL GROUND VIO WIRE VIO/BLU WIRE VIO/WHT WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU 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

5 BUS (-) 5-VOLT REF 1 BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLU/BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE APPLY SENS CTRL BRAKE APPLY SENS LOW REF BRAKE APPLY SENS SIG BRAKE PEDAL POSITION SENSOR BRAKE SIGN BRK POS SENS SIG CAN BUS (+) 2 CAN BUS (-) 2 BATT POS VOLT CAN BUS (-) 3 COMPUTER DATA LINES SYSTEM CRUISE/ETC/TCC CRUISE/ETC/TCC BRAKE SIG DRIVER INFORMATION CENTER DISPLAY ENG CTRL SENS ENG CTRL VEH SENS ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE WIRING HARNESS JUNCTION BLOCK GRN/GRY WIRE GRN/WHT WIRE GRY WIRE GRY/BRN WIRE HANDS-FREE LIFTGATE SENS LAMP CTRL HAZARD WARNING SW SIG HAZARD WARNING SWITCH HDLP SW FLASH SIG HIGH BEAM SELECT SW HIGH BEAM SIG HDLP SW PARK LP SIG HEADLAMP SWITCH HI BEAM ASSIST SW SIG HOT AT ALL TIMES INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT TURN IND LH TURN SIG SW SIG LOGIC LOW REF 2 OFF AUTO PARK HEAD PARK LAMPS IND REAR CLOSURE HANDLE SW OPEN SIG REAR CLOSURE HANDS FREE LAMP RED/WHT WIRE RH TURN SIG SW SIG RIGHT TURN IND SIG GND TURN SIGNAL SWITCH VIO/BLU WIRE WHT WIRE WHT/BLU WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE

A/C COMPRESSOR CLUTCH RELAY CONTROL A/C REFRIGERANT PRESSURE SENSOR SIGNAL AMBIENT AIR TEMPERATURE SENSOR SIGNAL BLK WIRE BLK/GRN WIRE BLK/GRY WIRE BLK/WHT WIRE BLK/YEL WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/RED WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM COOLANT DIVERTER VALVE ACTUATOR CONTROL CLOSE COOLANT DIVERTER VALVE ACTUATOR CONTROL OPEN COOLANT DIVERTER VALVE POSITION SIGNAL COOLANT TEMPERATURE SENSOR 2 SIGNAL ENGINE BLOCK COOLANT TEMPERATURE SIGNAL ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) ENGINE CONTROL MODULE LIN BUS 4 ENGINE CONTROL SENSORS 5 VOLT REF 1 ENGINE CONTROL SENSORS LOW REFERENCE 1 ENGINE CONTROL SENSORS LOW REFERENCE 2 ENGINE CONTROL VEHICLE SENSORS 5 VOLT REF 1 ENGINE CONTROL VEHICLE SENSORS LOW REF 1 ENGINE CONTROLS SYSTEM ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE COOLANT TEMPERATURE SENSOR 1 ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE COOLANT TEMPERATURE SENSOR 5 ENGINE INLET COOLANT TEMPERATURE SIGNAL ENGINE INTEGRATED EXHAUST MANIFOLD TEMPERATURE SIG ENGINE OUTLET COOLANT TEMPERATURE SIGNAL GRN WIRE GRN/BRN WIRE GRN/YEL WIRE GRY/VIO WIRE LEFT FRONT STRUT TOWER) LOGIC POWERTRAIN MAIN RELAY FUSED SUPPLY VOLTAGE 5 PVT SERIAL DATA POWERTRAIN CAN BUS (-) SERIAL DATA RED/GRY WIRE RED/YEL WIRE SIGNAL GROUND VIO WIRE VIO/BLU WIRE WHT WIRE WHT/GRY WIRE WHT/RED WIRE YEL/BLK WIRE YEL/BLU WIRE

A/C REFRIGERANT PRESSURE SENSOR AMBIENT AIR TEMPERATURE SENSOR BLK WIRE BLK/GRY WIRE BLK/YEL WIRE BLU/GRY WIRE BLU/RED WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM ENGINE COOLANT PUMP (LOWER LEFT FRONT OF ENGINE) ENGINE COOLANT TEMPERATURE SENSOR 6 GRN WIRE GRN/BRN WIRE GRN/VIO WIRE GRY/VIO WIRE LOGIC NCA WIRE RADIATOR COOLANT TEMPERATURE SENSOR RED/GRY WIRE RED/YEL WIRE RIGHT SIDE OF RADIATOR) YEL/BLK WIRE

AUTOMATIC TRANSMISSION ASSEMBLY BATTERY POSITIVE VOLT BLK WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/WHT WIRE BLU/BLK WIRE BLU/GRY WIRE BLU/YEL WIRE BODY CONTROL MODULE BRAKE PEDAL POSITION SENSOR BRK APPLY SENS CTRL BRK APPLY SENS LOW REF BRK APPLY SENS SIG BRK POS SENS SIG CAN BUS (+) 3 SERIAL DATA CAN BUS (-) 2 SERIAL DATA CAN BUS (-) SERIAL DATA CAN BUS (-) SERIAL DATA BATT + VOLT COMPUTER DATA LINES SYSTEM ENG CTRL MODULE LIN BUS 1 ENG POS SENS LOW REF 2 ENGINE CONTROL MODULE (LEFT SIDE OF ENGINE COMPT) GEAR SHIFT CONTROL MODULE GRN/VIO WIRE GRY/BRN WIRE HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 1 ENERGIZED HOT W/ IGNITION MAIN RELAY 1 ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT STRUT TOWER) NCA WIRE PARK INHIBIT SOLENOID ASSEMBLY CONTROL POWERTRAIN SENS BUS ENABLE RED/GRY WIRE RED/WHT WIRE RUN/CRANK IGN 1 VOLT SIG GND TOP OF TRANSMISSION) TRANSMISSION CONTROL MODULE TRANSMISSION HIGH SIDE DRIVER 2 CONTROL TRANSMISSION PARK VALVE LOCK SOLENOID ACTUATOR VIO/BLK WIRE VIO/GRN WIRE VIO/WHT WIRE WHT WIRE WHT/GRN WIRE WHT/RED WIRE

BLK/GRN WIRE BLK/GRY WIRE BLU WIRE BLU/BRN WIRE BLU/GRY WIRE BLU/WHT WIRE ENGINE CONTROLS IGNITION RELAY ENGINE COOLANT BYPASS VALVE ENGINE COOLANT FLOW CONTROL VALVE (LEFT SIDE OF ENGINE) ENGINE COOLANT FLOW CONTROL VALVE BLOCK ENGINE COOLANT TEMPERATURE SENSOR 2 ENGINE WIRING HARNESS JUNCTION BLOCK EXHAUST CAMSHAFT PROFILE SLEEVE POSITION SENSOR 1 EXHAUST CAMSHAFT PROFILE SLEEVE POSITION SENSOR 2 FUEL RAIL PRESSURE SENSOR (ON FUEL RAIL) 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 HOT AT ALL TIMES INTAKE CAMSHAFT PROFILE SLEEVE POSITION SENSOR 1 INTAKE CAMSHAFT PROFILE SLEEVE POSITION SENSOR 2 LOGIC RED/GRN WIRE RED/WHT WIRE VIO WIRE VIO/BLK WIRE VIO/BLU WIRE VIO/GRN WIRE VIO/GRY WIRE VIO/WHT WIRE WHT/GRN WIRE WHT/RED WIRE YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/GRN WIRE YEL/VIO WIRE YEL/WHT WIRE