Buick Envision II (2020-2024) (left side of dash) Wiring diagrams

BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/WHT WIRE BLU/YEL WIRE CAN BUS (+) 2 CAN BUS (-) 2 SERIAL DATA COMPUTER DATA LINES SYSTEM GRN/WHT WIRE HOT AT ALL TIMES INSIDE REAR VIEW MIRROR INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT LIFTGATE REAR COMBINATION LAMP LIGHTING CONTROL MODULE LOGIC MID LEVEL LOW LEVEL NCA WIRE RADIO RED/BLU WIRE RED/YEL WIRE RIGHT LIFTGATE REAR COMBINATION LAMP SIGNAL GROUND TOP OF TRANSMISSION) TRANSMISSION CONTROL MODULE WHT WIRE

AUTOSAR CAN BUS (+) 1 SERIAL DATA AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (+) 5 SERIAL DATA AUTOSAR SERIAL DATA CAN BUS (-) 8 SERIAL DATA BATT POS VOLT BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/WHT WIRE BLU/YEL WIRE COMPUTER DATA LINES SYSTEM DAY NIGHT LED CTRL DRIVER INFORMATION CENTER DISPLAY FORWARD COLLISION ALERT DISPLAY FORWARD COLLISION ALERT LED CTRL GRY/BLK WIRE GRY/YEL WIRE HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED IMAGE PROCESSING MODULE (LEFT SIDE OF LUGGAGE COMPT) INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC LONG RANGE FORWARD RANGE RADAR SENSOR RED/YEL WIRE SIG GND VIO/GRN WIRE WHT WIRE WHT/GRY WIRE

AUXILIARY PARK LAMP RLY CTRL BACKUP LAMP CONTROL BACKUP LAMP CTRL BACKUP LAMPS CIRCUIT BATTERY POSITIVE VOLTAGE BATTERY POSITIVE VOLTAGE LR PARK LAMP CTRL BLK WIRE BLU/BRN WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE ENGINE WIRING HARNESS JUNCTION BLOCK FR TURN SIG LAMP FEEDBACK SIG GRN/WHT WIRE GRN/YEL WIRE GRY WIRE GRY/BLU WIRE GRY/YEL WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT SIDE MARKER LAMP LEFT LIFTGATE REAR COMBINATION LAMP LEFT REAR BODY STRUCTURE STOP LAMP LEFT REAR SIDE MARKER LAMP LF DRL CTRL LF PARK LAMP CTRL LF TURN SIG LAMP CTRL LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH) LOGIC LOW WASHER FLUID INDICATOR CTRL LR STOP LAMP CTRL REAR LICENSE PLATE LAMP MODULE RED/BLU WIRE RED/GRN WIRE RED/YEL WIRE RF DRL CONTROL RF TURN SIG LAMP FEEDBACK SIG RIGHT FRONT PARK LAMP CONTROL RIGHT FRONT SIDE MARKER LAMP RIGHT REAR STOP LAMP CONTROL RR LICENSE PLATE LAMP CTRL RR TURN SIG LAMP CTRL 2 RR WINDOW WASHER RLY CTRL RR WIPER MTR RLT COIL CTRL TRAILER TOW CIRCUIT VIO WIRE VIO/BLK WIRE WHT/BRN WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WASHER RLY CTRL WINDSHIELD WIP MTR PRK SW SIG WINDSHIELD WIP MTR RLY COIL CTRL WINDSHIELD WIPER SWITCH HIGH SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

BLK WIRE BLU/BRN WIRE BLU/VIO WIRE BLU/WHT WIRE BRN/GRY WIRE BRN/YEL WIRE CENTER HIGH MOUNTED STOP LAMP RADIO AM ANTENNA SIGNAL FILTER MODULE ENGINE WIRING HARNESS JUNCTION BLOCK GRN/VIO WIRE GRY/BLU WIRE HIGH MOUNTED STOP LAMP HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT FRONT HEADLAMP LEFT HEADLAMP CONTROL MODULE LOGIC NCA WIRE RED/BLU WIRE RED/GRN WIRE RIGHT FRONT HEADLAMP RIGHT HEADLAMP CONTROL MODULE RIGHT REAR BODY STRUCTURE STOP LAMP RIGHT REAR SIDE MARKER LAMP VIO/BLK WIRE WHT/BLK WIRE WHT/VIO WIRE WHT/YEL WIRE YEL/BLU WIRE YEL/GRN WIRE

ANIMATION LIGHTING CTRL AUTOSAR CAN BUS (+) 2 SERIAL DATA AUTOSAR CAN BUS (-) 2 SERIAL DATA CRUISE/ETC/TCC BRAKE SIGNAL BACKUP LAMPS CIRCUIT BATTERY POSITIVE VOLTAGE BLK WIRE BLK/WHT WIRE BLU/VIO WIRE BLU/WHT WIRE BLU/YEL WIRE BRN/GRY WIRE BRN/YEL WIRE COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRY WIRE HDLP LVLG CAN BUS COMMUNICATION ENABLE HEADLIGHTS SYSTEM HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT HEADLAMP HIGH BEAM CTRL LEFT HEADLAMP LOW BEAM CTRL LIFTGATE AJAR SWITCH SIGNAL 1 LIGHTING CONTROL MODULE (RIGHT SIDE OF DASH) LOGIC LR TRAILER STOP/TURN LAMP CTRL LR TURN SIGNAL LAMP CTRL 2 RED/BLU WIRE RED/BRN WIRE RED/GRY WIRE RED/VIO WIRE RIGHT FRONT TURN SIGNAL LAMP CTRL RIGHT HEADLAMP HIGH BEAM CTRL RIGHT HEADLAMP LOW BEAM CTRL RIGHT LIFTGATE REAR COMBINATION LAMP RR PARK LAMP CTRL RR TRAILER STOP/TURN LAMP CTRL RR TURN SIG LAMP FEEDBACK SIG RUN/CRANK IGNITION 1 VOLTAGE SIGNAL GROUND STOP LAMP RELAY COIL CONTROL TRAILER TOW CIRCUIT TRUNK, TAILGATE, FUEL DOORS SYSTEM VIO/GRY WIRE WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/VIO WIRE WHT/YEL WIRE WINDSHIELD WIPER SW HIGH SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/GRN 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

BATT POS VOLT BLK WIRE BLK/GRN WIRE BRN/BLU WIRE BUS 7 (-) COMPUTER DATA LINES SYSTEM DISPLAY ETHERNET GRN/BLK WIRE GRY/BLU WIRE HEAD-UP HEAD-UP DISPLAY HEAD-UP DISPLAY SWITCH HOT AT ALL TIMES HUD DOWN HUD SW LOW REF HUD SW SIG HUD UP INFO INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC LVDS LVDS GY HEAD-UP DISPLAY MUTE RED/YEL WIRE SERIAL DATA BUS 1 YEL WIRE YEL/WHT WIRE

BLK WIRE BLK/WHT WIRE BRN/WHT WIRE COMPUTER DATA LINES SYSTEM CRUISE CONTROL SWITCH GRN/BLK WIRE GRY/YEL WIRE HEATED STEERING WHEEL IND HEATED STEERING WHEEL MODULE HEATED STEERING WHEEL SWITCH HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LOGIC RED/BRN WIRE STEERING WHEEL AIR BAG COIL STEERING WHEEL HEATER STEERING WHEEL RADIO CONTROL SWITCH VIO WIRE VIO/BLU WIRE VIO/GRN WIRE WHT/YEL WIRE YEL/GRY WIRE YEL/RED WIRE

ABS IND. ADAPTIVE CRUISE IND ADAPTIVE FRONT LIGHTING (AFL) LIGHT IND AIR BAG IND AUTO HOLD IND AUTOSAR CAN BUS (+) 5 SERIAL DATA BATT POS VOLT BLK WIRE BLU/WHT WIRE BLU/YEL WIRE BRAKE IND BRAKE WARNING IND BRN/BLU WIRE CHARGE IND COLLISION AVOIDANCE CIRCUIT COMPUTER DATA LINES SYSTEM CRUISE IND DRIVER INFORMATION CENTER DISPLAY ENGINE COOLANT TEMPERATURE GAUGE ENGINE COOLANT TEMPERATURE IND ENGINE OIL PRESSURE IND ESC IND ESC OFF IND ETHERNET BUS 7 (-) FRONT FOG LAMP IND FUEL GAUGE FUEL IND/ LOW FUEL IND GRN/BLK WIRE GRY/BLK WIRE GRY/BLU WIRE GRY/YEL WIRE GY LVDS HEAD-UP DISPLAY CIRCUIT HEAD-UP DISPLAY SIG HIGH BEAM IND HILL DESCENT CONTROL IND HOT AT ALL TIMES HOT W/ IGNITION MAIN RELAY ENERGIZED ILLUMINATION AUTOSAR CAN BUS (-) 5 SERIAL DATA INSTRUMENT CLUSTER LIN BUS 1 INSTRUMENT PANEL CLUSTER CONTROL MODULE INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LANE DEPARTURE WARNING IND LANE KEEP ASSIST IND LEFT TURN IND LIGHTS ON IND LOGIC MULTI-FUNCTION POWER SUPPLY CONVERTER PARK BRAKE IND PARK LAMP IND POWER STEERING WARNING LIGHT IND REAR FOG LAMP IND RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE RIGHT TURN IND RUN/CRANK IGN 1 VOLT SEAT BELT IND SECURITY IND SERVICE PARK BRAKE IND SPEEDOMETER TACHOMETER TIRE PRESSURE IND TRACTION CONTROL OFF IND VEHICLE AHEAD IND VIO/BLK WIRE

BLK WIRE BLU/BLK WIRE BLU/WHT WIRE COMPUTER DATA LINES SYSTEM ENGINE WIRING HARNESS JUNCTION BLOCK GRN/BLK WIRE GRN/BRN WIRE GRN/VIO WIRE GRN/WHT WIRE GRN/YEL WIRE GRY WIRE HOT AT ALL TIMES INSTRUMENT PANEL WIRING HARNESS JUNCTION BLOCK LEFT REAR SEAT BACK HEATER LEFT REAR SEAT CUSHION HEATER REAR SEAT HEATER CONTROL MODULE RED/GRY WIRE RED/VIO WIRE RIGHT REAR SEAT BACK HEATER RIGHT REAR SEAT CUSHION HEATER WHT/BLK WIRE WHT/BLU WIRE YEL WIRE YEL/BLK WIRE YEL/WHT WIRE