This Buick Envision wiring diagram manual package provides complete electrical circuit schematics for the uploaded 2016, 2018, 2019, 2020 and 2022 Envision models.
It is designed for professional diagnostics, electrical troubleshooting, wiring repair, connector tracing, module testing, retrofit planning and workshop repair reference.
The package covers key electrical systems including ECM engine control, BCM body control, ABS, GMLAN communication, HVAC, power distribution, ground distribution, cooling fan, lighting, infotainment, restraints, transmission and tailgate-related wiring. The 2022 manual also includes active bodyworks / active grille shutter wiring.
Vehicle Coverage
- Buick Envision 2016 Premium
- Engine: 2.0L
- Pages: 123
- Buick Envision 2018 Premium
- Engine: 2.0L
- Pages: 132
- Buick Envision 2019 Premium
- Engine: 2.0L
- Pages: 136
- Buick Envision 2020 Preferred
- Engine: 2.5L
- Pages: 136
- Buick Envision 2022 Preferred
- Engine: 2.0L
- Pages: 146
- Engine circuit coverage included:
- 2.0L VIN X
- 2.5L VIN A
- 2.0L VIN 4
- Total package size:
- 673 pages
Technical Highlights
- Complete 2.0L and 2.5L engine performance wiring
- ECM / Engine Control Module circuits
- BCM / Body Control Module wiring
- ABS and Electronic Brake Control Module circuits
- GMLAN computer data line diagrams
- Active grille shutter / active bodyworks circuit for 2022
- Power distribution and fuse block wiring
- Ground distribution circuits
- HVAC, automatic A/C, blower motor and rear HVAC circuits
- Cooling fan and A/C compressor circuits
- Exterior lights, headlights, backup lamps and horn circuits
- Interior lights, courtesy lamps and instrument illumination wiring
- Navigation, camera, radio and infotainment wiring
- Power seats, memory systems and comfort circuits
- Power windows, mirrors, door locks and tailgate wiring
- Starting, charging, shift interlock and transmission wiring
- Supplemental restraints, warning systems and wiper/washer circuits
Table of Content
- Active Bodyworks
- Active grille air shutter circuit
- Active grille shutter actuator wiring
- ECM and data line links for active bodyworks
- Air Conditioning
- Automatic A/C circuit
- HVAC control module wiring
- Front and rear electronic HVAC controls
- Blower motor and auxiliary blower motor circuits
- A/C compressor clutch and solenoid valve wiring
- Windshield temperature and inside moisture sensor
- Ambient light / sunload sensor
- Upper and lower auxiliary air temperature sensors
- Air inlet, mode and temperature valve actuators
- A/C evaporator temperature sensor
- Rear HVAC controls and auxiliary HVAC module wiring
- Anti-Lock Brakes
- Anti-lock brakes circuit
- Electronic Brake Control Module wiring
- Wheel speed sensor circuits
- Brake pressure and brake switch wiring
- Stability and traction control related circuits
- Anti-Theft
- Anti-theft circuit
- Forced entry circuit
- Pass-Key / security wiring
- Keyless entry and BCM security links
- Door handle, latch and theft-deterrent wiring
- Body Control Modules
- Body Control Module circuit
- BCM power, ground and signal wiring
- Body module links to locks, lights, HVAC, cluster and data networks
- Door, tailgate, mirror, seat and comfort system connections
- Computer Data Lines
- Computer data lines circuit
- Low speed GMLAN serial data
- High speed GMLAN serial data
- CAN bus communication circuits
- Data link connector wiring
- Module network communication circuits
- Cooling Fan
- Cooling fan circuit
- 2.0L turbo left and right cooling fan motor circuits
- 2.5L cooling fan motor circuit
- Cooling fan relay, fuse and ground wiring
- Radiator support fan connections
- Cruise Control
- Cruise control circuit
- Steering control and brake signal links
- ECM / BCM cruise control wiring
- Defoggers
- Defoggers circuit
- Rear defogger relay control
- Rear window defogger switch and indicator wiring
- Electronic Power Steering
- Electronic power steering circuit
- Power steering control module wiring
- Electronic Suspension
- Electronic suspension circuit
- Suspension control wiring where included
- Engine Performance
- 2.0L VIN X engine performance circuit
- 2.5L VIN A engine performance circuit
- 2.0L VIN 4 engine performance circuit
- ECM power, ground, sensor and actuator wiring
- Ignition, injector and fuel control circuits
- A/C pressure and coolant temperature sensor wiring
- Turbocharger, throttle, oxygen sensor and engine control relay circuits
- CAN bus and data line links to engine control systems
- Exterior Lights
- Backup lamps circuit
- Exterior lamps circuit
- Front and rear exterior lighting wiring
- Tail lamp, marker lamp, license lamp and turn signal circuits
- Trailer / rear lighting related wiring where included
- Ground Distribution
- Ground distribution circuits
- Engine ground points
- Chassis ground points
- Body, HVAC, lighting, infotainment and module ground circuits
- Tailgate and rear body ground wiring
- Headlights
- Headlights circuit
- Headlamp control and lighting module wiring
- Low beam, high beam and daytime running lamp circuits
- Front lighting and related BCM connections
- Horn
- Horn circuit
- Horn relay and BCM horn control wiring
- Instrument Cluster
- Instrument cluster circuit
- Driver information center display
- Engine coolant temperature indicator
- Warning indicator and data line links
- Interior Lights
- Courtesy lamps circuit
- Instrument illumination circuit
- Interior lighting and dimming control wiring
- Memory Systems
- Memory seat circuit
- Memory mirror circuit
- Seat memory module wiring
- Driver position and comfort memory links
- Navigation / Camera / Infotainment
- Navigation circuit
- Rear camera circuit
- Camera and display wiring
- Infotainment module wiring
- Radio and audio communication circuits
- Power Distribution
- Power distribution circuits
- Battery distribution wiring
- Underhood fuse block wiring
- Instrument panel junction block wiring
- Rear body fuse block wiring
- Relay, fuse and ignition power circuits
- Power Door Locks
- Power door locks circuit
- Door latch and door lock actuator wiring
- Door handle and lock switch circuits
- BCM-controlled locking and anti-theft links
- Power Mirrors
- Power mirrors circuit
- Mirror adjustment and mirror control wiring
- Memory mirror wiring where equipped
- Power Seats
- Driver power seat circuit
- Passenger power seat circuit
- Memory seat wiring
- Heated seat and comfort seat circuits
- Lumbar and seat adjustment wiring where equipped
- Power Top / Sunroof
- Power top / sunroof circuit
- Sunroof motor and switch wiring
- Power Windows
- Power windows circuit
- Window motor and switch wiring
- Door module and BCM window control links
- Radio / Audio
- Radio circuit
- Audio amplifier wiring
- Speaker circuit wiring
- Infotainment and display module wiring
- Shift Interlock
- Shift interlock circuit
- Brake signal and transmission interlock wiring
- Starting / Charging
- Charging circuit
- Starting circuit
- Starter, generator and battery supply wiring
- Supplemental Restraints
- Supplemental restraints circuit
- Inflatable restraint sensing and diagnostic module wiring
- Airbag, impact sensor and seat belt restraint circuits
- Transmission
- Transmission circuit
- Automatic transmission wiring
- Transmission control module wiring
- Transmission power, ground and signal circuits
- Trunk, Tailgate, Fuel Door
- Tailgate circuit
- Liftgate / tailgate release wiring
- Fuel door and rear body wiring where included
- Warning Systems
- Warning systems circuit
- Cluster warning, brake warning and system indicator wiring
- Wiper / Washer
- Wiper/washer circuit
- Windshield wiper motor wiring
- Washer pump and switch circuits
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