Buick Envision I (2016-2018) power distribution system Wiring diagrams

BACKUP LAMP CTRL BATT POS VOLT BLK WIRE BLK/WHT WIRE BODY CONTROL MODULE CAMERA LOW REFERENCE CAMERA SIGNAL 2 COMPUTER DATA LINES SYSTEM DC DC TRANS FUSE DEVICE 2 SWITCHED VOLT GRILLE FRONT VIEW CAMERA GRN/WHT WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/YEL WIRE HOT AT ALL TIMES HUMAN MACHINE INTERFACE CONTROL MODULE INSTRUMENT PANEL FUSE BLOCK LEFT SIDE VIEW CAMERA (AT LEFT OUTSIDE REAR VIEW MIRROR) LOW SPEED GMLAN SERIAL DATA LT BLU WIRE NCA WIRE ORG/ WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR VIEW CAMERA RED WIRE RED/BLU WIRE RED/GRN WIRE RIGHT SIDE VIEW CAMERA (AT RIGHT OUTSIDE REAR VIEW MIRROR) SIGNAL GROUND SUPPLY VOLTAGE 2 TCM FUSE UNDERHOOD FUSE BLOCK VIDEO PROCESSING CONTROL MODULE VIO/GRY WIRE WHT WIRE WHT/BLU WIRE YEL WIRE

ACC IND ACCESSORY IGN VOLT ACTIVE SIG ANTI-THEFT SYSTEM BACKUP LP CTRL BLK WIRE BLK/GRY WIRE BLU WIRE BLU/BLK WIRE BLU/GRN WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE BRN/BLK WIRE BRN/GRN WIRE BRN/GRY WIRE BRN/VIO WIRE BRN/WHT WIRE BRN/YEL WIRE COIL CTRL COMMUNICATION ENABLE COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG CRUISE CONTROL SYSTEM CRUISE CTRL GAP UP DN SW SIG CRUISE CTRL SW SIG DIMMING CTRL DOOR LOCKS SYSTEM DOOR LOCKS, ANTI-THEFT SYSTEMS DR LCK CTRL DR LCK CTRL CTRL (2) GND EXTERIOR LIGHTS, NAVIGATION SYSTEMS GMLAN SERIAL DATA GMLAN SERIAL DATA - 1 GRN 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/BRN WIRE GRY/GRN WIRE GRY/VIO WIRE GRY/YEL WIRE HAZARD SW LH TURN SIG HAZARD SW RH TURN SIG HDLP SW FLASH TO PASS SIG HEADLIGHTS SYSTEM HEADLIGHTS, CRUISE CONTROL, INTERIOR LIGHTS SYSTEMS HI IDLE SW CTRL HOOD STATUS B SIG HORN SW SIG HORNS SYSTEM IGNITION MODE SWITCH IMMOBILIZER CTRL IMMOBILIZER LOW REF INADVERTENT PWR CTRL INTR LP CTRL INTR LP DEFEAT SW SIG KEY CAPTURE/COLUMN POS SIG LCK MTR STATUS SIG LR LCK MTR STATUS SIG RR LCK RLY CTRL LED AMBIENT LIGHTING CTRL 1 LH HDLP LO BEAM CTRL LH PARK LP CTRL LICENSE LP CTRL LIGHTING CTRL SWITCH REF LOW REF LR STOP LP CTRL LR TURN SIG LP CTRL MTR PARK SW SIG NETWORK BUS 1 NETWORK BUS 2 NETWORK BUS 3 PARK LCK SOL CTRL PASS DOOR LOCK/ PASSIVE START SWITCH POWER DISTRIBUTION SYSTEM REAR COMPT LID LP CTRL RF TURN SIG LP CTRL RH HDLP LO BEAM CTRL RH PARK LP CTRL RLY CLOSE CTRL RLY COIL CTRL RLY CTRL RLY OPEN CTRL RR TURN SIG CTRL RR TURN SIG LP CTRL RUN/CRANK IGN 1 VOLT SERIAL DATA BUS 11 SHIFT INTERLOCK, TRANSMISSIONS SYSTEMS START IND SW UNLOCK CTRL TRANSMISSIONS SYSTEM UNLCK CTRL VIO/BLK WIRE VIO/BLU WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WAKE UP SERIAL DATA WASHER SW SIG WHT WIRE WHT/BLK WIRE WHT/BLU WIRE WHT/BRN WIRE WHT/GRN WIRE WHT/VIO WIRE WHT/YEL WIRE WIPER SW HI SIG WIPER SW LOW SIG WIPER/WASHER SYSTEM YEL WIRE YEL/BLU WIRE YEL/BRN WIRE YEL/VIO WIRE

AJAR SW SIG BATT POS VOLT BCM 6 FUSE BLK WIRE BODY CONTROL MODULE COMPUTER DATA LINES SYSTEM COURTESY LP SW SIG DC/DC TRANS FUSE DOME LAMP SWITCH DRIVER DOOR LATCH ASSEMBLY DRIVER WINDOW MOTOR GRN/GRY WIRE GRN/YEL WIRE GRY WIRE GRY/GRN WIRE HOT AT ALL TIMES INSTRUMENT ILLUMINATION CIRCUIT INSTRUMENT PANEL COMPARTMENT LAMP INSTRUMENT PANEL COMPARTMENT LAMP SWITCH INTR LP CTRL INADVERTENT PWR CTRL INTR LP DEFEAT SW SIG LED AMBIENT LIGHTING CTRL 1 LOGIC NETWORK BUS 3 NETWORK BUS 4 OFF POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK REAR COMPARTMENT COURTESY LAMP REAR COMPT LID LP CTRL RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SUPPLY VOLT UNDERHOOD FUSE BLOCK VIO WIRE WHT/BRN WIRE WHT/YEL WIRE YEL WIRE

2 COIL CONTROL ACCESSORY IGN VOLT ACTIVE SIG ANTENNA SIG 1 HI ANTENNA SIG 1 LO ANTENNA SIG 2 HI ANTENNA SIG 2 LO ANTENNA SIG 3 HI ANTENNA SIG 3 LO ANTENNA SIG HI ANTENNA SIG LO BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE CENTER CONSOLE FRONT KEYLESS ENTRY ANTENNA CENTER CONSOLE REAR KEYLESS ENTRY ANTENNA COMPUTER DATA LINES SYSTEM DRIVER DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRV DR HANDLE SW SIG RR CLOSURE HANDLE SW OPEN SIG GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE LIFTGATE CONTROL MODULE LOW REF LR DR HANDLE SW SIG NCA WIRE PASS DR HANDLE SW SIG PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PASSIVE START SW SIG 2 PEPS FUSE POWER DISTRIBUTION SYSTEM REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR FASCIA KEYLESS ENTRY ANTENNA RED/WHT WIRE RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT SIG SW OPEN VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

BATT POS VOLT BLK WIRE BLK/BLU WIRE BLK/BRN WIRE BLK/GRN WIRE BLK/VIO WIRE BLK/WHT WIRE BLU WIRE BLU/GRY WIRE BLU/VIO WIRE BLU/WHT WIRE BODY CONTROL MODULE BRAKE/ BRN/GRN WIRE COMPUTER DATA LINES SYSTEM ENGINE CONTROL MODULE ENGINE CONTROLS SYSTEM FUEL LEVEL SENSOR FUEL PUMP, LEVEL SENSOR ASSEMBLY GMLAN SERIAL DATA - 1 GRN/BLU WIRE GRY/GRN WIRE KEYLESS ENTRY CONTROL MODULE LOGIC OIL LVL SW SIG OIL PRESS SENS LOW REF OIL PRESS SENS SIG POWER DISTRIBUTION SYSTEM PRESS SENS 5 VOLT REF PRIMARY FUEL LVL SENS SIG RAP RELAY 2 COIL CTRL RED/GRN WIRE SEC FUEL LVL SENS SIG SECONDARY FUEL LEVEL SENSOR SENS SIG SERIAL DATA (-) (1) SERIAL DATA BUS 2 SIG GND TRANSMISSION SHIFT LEVER POSITION INDICATOR VIO WIRE WHT WIRE WHT/RED WIRE YEL/BRN WIRE

ACTIVE SAFETY CONTROL MODULE BATT POS VOLT BCM 6 FUSE BLK WIRE BODY CONTROL MODULE CENTER CONSOLE MULTI-FUNCTION SWITCH CLOCK COMPUTER DATA LINES SYSTEM DC/DC TRANS FUSE DRIVER DOOR LOCK SWITCH DRIVER SEAT MEMORY SWITCH DRIVER WINDOW SWITCH GRN/BRN WIRE GRN/GRY WIRE GRN/YEL WIRE GRY/GRN WIRE GRY/YEL WIRE HAZARD WARNING SWITCH HDLP OFF SIG CTRL HDLP SW ON SIG HEAD-UP DISPLAY SWITCH HOT AT ALL TIMES IGNITION MODE SWITCH IND DIMMING CTRL HAZARD LED DIMMING SIG INFOTAINMENT FACEPLATE CONTROL MODULE INSTRUMENT PANEL MULTI- FUNCTION SWITCH INTERIOR LIFTGATE CONTROL SWITCH LANE DEPARTURE WARNING LIGHT IND LED BACKLIGHT DIMMING CTRL LED DISABLE SIG LEFT REAR WINDOW SWITCH LIGHTING CTRL SW REF LIGHTING CTRL SW SIG LO SPD GMLAN SERIAL DATA LOGIC LOGIC LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 3 LOGIC LOCAL INTERCONNECT NETWORK SERIAL DATA BUS 4 NETWORK BUS 3 NETWORK BUS 4 OUTSIDE REAR VIEW MIRROR SWITCH PARK ASSIST IND PARK BRAKE SWITCH PARK LP SIG PARKING ASSIST CONTROL MODULE PASSENGER DOOR LOCK SWITCH POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER REAR BODY FUSE BLOCK RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE SUPPLY VOLT UNDERHOOD FUSE BLOCK W/ FORWARD COLLISION SYSTEM W/ MEMORY W/O FORWARD COLLISION SYSTEM W/O MEMORY WARNING IND CTRL WHT WIRE WHT/BRN WIRE WHT/VIO WIRE WINDSHIELD FRONT VIEW CAMERA YEL WIRE

ALERT LED CTRL BATT POS VOLT BCM 6 FUSE BLK WIRE BLU WIRE BODY CONTROL MODULE COLLISION ALERT INDICATORS COMM ENABLE COMPUTER DATA LINES SYSTEM DC DC TRANS FUSE DIMMING CTRL DRIVER INFORMATION CONTROL DISPLAY FRONT VIEW CAMERA WINDSHIELD GAP UP/DOWN SWITCH GRN WIRE GROUND GRY WIRE GRY/GRN WIRE GRY/WHT WIRE GRY/YEL WIRE HI SPD GMLAN HI SPD GMLAN SERIAL DATA (-) (1) HOT AT ALL TIMES HOT W/ BATTERY SAVER RELAY 2 ENERGIZED HOT W/ IGNITION MAIN RELAY ENERGIZED IGN 1 VOLT INDICATOR DIMMING CONTROL INSTRUMENT PANEL FUSE BLOCK INSTRUMENT PANEL MULTI- FUNCTION SWITCH LANE DEPARTURE WARNING DISABLE LANE DEPARTURE WARNING DISABLE SWITCH LANE DEPARTURE WARNING IND LANE DEPARTURE WARNING IND CTRL LEFT STEERING WHEEL CONTROLS SWITCH LO SPD GMLAN LOGIC LOGIC INSTRUMENT CLUSTER POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER PRK ASSIST FUSE REAR BODY FUSE BLOCK RED/BLU WIRE RED/GRN WIRE RED/WHT WIRE STEERING WHEEL AIR BAG COIL SW SIG UNDERHOOD FUSE BLOCK UP/DOWN SW SIG VAR/ FUNC FUSE VIO/GRN WIRE VOLT REF W/O HEADUP DISPLAY WHT WIRE WHT/BLU WIRE WHT/GRN WIRE YEL WIRE

2 COIL CONTROL ACCESSORY IGN VOLT ACTIVE SIG ANTENNA SIG 1 HI ANTENNA SIG 1 LO ANTENNA SIG 2 HI ANTENNA SIG 2 LO ANTENNA SIG 3 HI ANTENNA SIG 3 LO ANTENNA SIG HI ANTENNA SIG LO BATT POS VOLT BLK WIRE BLK/GRY WIRE BLU WIRE BRN WIRE BRN/BLK WIRE BRN/GRN WIRE BRN/YEL WIRE CENTER CONSOLE FRONT KEYLESS ENTRY ANTENNA CENTER CONSOLE REAR KEYLESS ENTRY ANTENNA COMPUTER DATA LINES SYSTEM DRIVER DOOR HANDLE KEYLESS ENTRY ANTENNA DRIVER EXTERIOR DOOR HANDLE ASSEMBLY DRIVER EXTERIOR DOOR HANDLE SWITCH DRV DR HANDLE SW SIG RR CLOSURE HANDLE SW OPEN SIG GMLAN SERIAL DATA GRN WIRE GRN/BLK WIRE GRN/GRY WIRE GRN/WHT WIRE GRN/YEL WIRE GRY/BLK WIRE GRY/GRN WIRE HOT AT ALL TIMES IGNITION MODE SWITCH INSTRUMENT PANEL FUSE BLOCK KEYLESS ENTRY CONTROL MODULE LIFTGATE CONTROL MODULE LOW REF LR DR HANDLE SW SIG NCA WIRE PASS DR HANDLE SW SIG PASSENGER DOOR HANDLE KEYLESS ENTRY ANTENNA PASSENGER EXTERIOR DOOR HANDLE ASSEMBLY PASSENGER EXTERIOR DOOR HANDLE SWITCH PASSIVE START SW SIG 2 PEPS FUSE POWER DISTRIBUTION SYSTEM REAR COMPARTMENT KEYLESS ENTRY ANTENNA REAR FASCIA KEYLESS ENTRY ANTENNA RED/WHT WIRE RR DR HANDLE SW SIG RUN/CRANK IGN 1 VOLT SIG SW OPEN VIO WIRE VIO/BLK WIRE VIO/GRY WIRE VIO/WHT WIRE VIO/YEL WIRE WHT WIRE WHT/GRN WIRE YEL WIRE YEL/BLU WIRE YEL/GRY WIRE

AUTOMATIC TRANSMISSION ASSEMBLY BATTERY POSITIVE VOLT BCM 2 FUSE BLK WIRE BLK/BRN WIRE BLK/YEL WIRE BLU 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 LOW REF BRK POS SENS SIG COMPUTER DATA LINES SYSTEM CONTROL SOLENOID VALVE ASSEMBLY ENGINE CONTROL MODULE FUSE 1 HI SPD GMLAN SERIAL DATA (-) (1) HI SPEED GMLAN SERIAL DATA (-) 1 HOT AT ALL TIMES INSTRUMENT PANEL FUSE BLOCK KEY CAPTURE/COLUMN LOCK SHIFT POS SIG PARK LOCK SOL CTRL PARK POSITION SWITCH POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RED/GRN WIRE RED/GRY WIRE RED/YEL WIRE TRANS PARK/NEUTRAL SIG 1 TRANSMISSION CONTROL MODULE TRANSMISSION INTERNAL MODE SWITCH TRANSMISSION SHIFT LEVER TRANSMISSION SHIFT LOCK CONTROL SOLENOID ACTUATOR UNDERHOOD FUSE BLOCK VIO/BLK WIRE WHT WIRE WHT/GRN WIRE WHT/GRY WIRE WHT/RED WIRE WHT/VIO WIRE

B+ VOLT BATT POS VOLT BCM 6 FUSE BLK WIRE BLK/GRY WIRE BLU WIRE BODY CONTROL MODULE BRN/BLU WIRE BRN/GRN WIRE BRN/GRY WIRE COMPUTER DATA LINES SYSTEM DAT BUS 1 DC/DC TRANS FUSE DRIVER INFORMATION CENTER DISPLAY FRT WPR FUSE GRN WIRE GRN/BLK WIRE GRN/BRN WIRE GRN/WHT WIRE GRY WIRE HI SPD GMLAN SER DATA (+) 1 HOT AT ALL TIMES IND CTRL INSTRUMENT CLUSTER LOGIC MTR PARK SW SIG N/W SER N/W SER BUS 12 NCA WIRE POWER DISTRIBUTION SYSTEM POWER SUPPLY TRANSFORMER RAIN SENSOR MODULE REAR BODY FUSE BLOCK REAR WIPER SW SIG RED/BLU WIRE RED/BRN WIRE RED/GRN WIRE RED/GRY WIRE RED/WHT WIRE RLY COIL CTRL RLY CTRL SW HIGH SIG UNDERHOOD FUSE BLOCK VIO WIRE WASHER SW SIG WHT WIRE WHT/BLK WIRE WHT/VIO WIRE WINDSHIELD WIPER MOTOR WINDSHIELD WIPER RELAY WINDSHIELD WIPER SPEED CONTROL RELAY WIPER SW HIGH SIG WIPER SW LO SIG WIPER SW LOW REF YEL WIRE YEL/BLU WIRE YEL/BRN WIRE