BMW M340i xDrive 2020 Wiring Diagram Manual – G20 3.0L Turbo Electrical System, DME, DSC, PT-CAN & Full OEM Circuit Schematics

This BMW M340i xDrive 2020 wiring diagram manual provides complete electrical circuit schematics for the 3.0L Turbo model.

It is designed for professional diagnostics, electrical troubleshooting, wiring repair, module testing, retrofit planning, connector tracing, and workshop reference. The manual includes complete wiring diagrams for engine performance, Digital Motor Electronics, cooling fan, power distribution, ground distribution, body control, HVAC, lighting, navigation, radio, restraints, transmission, AWD, and vehicle communication systems.

The internal manual header identifies the vehicle as 2020 BMW M340i xDrive Base with 3.0L engine, and the document contains 183 pages.

Vehicle Coverage

• BMW M340i xDrive 2020 Base
  • Engine: 3.0L Turbo
  • Pages: 183
  • Platform reference: G20
  • Drive: xDrive / AWD

Technical Highlights

• Complete 3.0L Turbo engine performance wiring
• DME / Digital Motor Electronics circuits
• DSC and anti-lock brake wiring
• PT-CAN and computer data line circuits
• Power distribution and ground distribution diagrams
• HVAC, A/C, independent heating and blower motor circuits
• Exterior lighting, headlights and interior lighting circuits
• Access/start, anti-theft and central locking systems
• Body domain controller and body control module wiring
• Navigation, radio, camera, parking assistant and driver assistance circuits
• Passive and supplemental restraint systems
• Automatic transmission, AWD and rear axle circuits
• Starting, charging, shift interlock, warning, wiper and washer circuits

Table of Content

• Active Bodyworks
  • Active bodyworks circuit
• Air Conditioning
  • Automatic A/C circuit
  • Independent heating circuit
  • A/C compressor, blower motor, auxiliary heater, ventilation grilles and HVAC sensor circuits
• Anti-Lock Brakes
  • Anti-lock brakes circuit
  • Dynamic Stability Control / DSC wiring
  • Brake pad wear sensors, wheel RPM sensors and parking brake drive circuits
• Anti-Theft / Access / Central Locking
  • Access/start circuit
  • Anti-theft and central locking circuit
  • Remote control receiver, antennas, door handle electronics and door lock wiring
• Body Control Modules
  • Body control modules circuit
  • Body domain controller wiring
  • Module links for power distribution, lighting, anti-theft, doors, windows, mirrors and data lines
• Computer Data Lines
  • Computer data lines circuit
  • Data communication wiring
  • Vehicle network, module communication and bus-related circuits
• Cooling Fan
  • Cooling fan circuit
  • Electric fan, coolant pump, radiator blind drive and heat management wiring
• Cruise Control
  • Cruise control circuit
• Defoggers
  • Heated mirrors with LIN bus function
  • Heated mirrors without LIN bus function
  • Rear defogger circuit
• Electronic Power Steering
  • Electronic power steering circuit
• Electronic Suspension
  • Dynamic drive suspension circuit
• Engine Performance > 3.0L Turbo
  • 3.0L Turbo engine performance circuit
  • Digital Motor Electronics / DME
  • Rail pressure sensor
  • VANOS solenoid actuators
  • Oxygen sensor circuits
  • Electrical wastegate valve
  • Coolant pump and heat management wiring
  • Engine sensors, actuators and ignition-related circuits
• Exterior Lights
  • Backup lamps circuit
  • Exterior lamps circuit
  • Trailer tow circuit
• Ground Distribution
  • Ground distribution circuits
  • Engine, body, chassis, lighting, comfort, infotainment and module ground points
• Headlights
  • Headlights circuit
• Horn
  • Horn circuit
• Instrument Cluster
  • Instrument cluster circuit
• Interior Lights
  • Courtesy lamps circuit
  • Instrument illumination circuit
• Memory Systems
  • Driver memory seat circuit
  • Passenger memory seat circuit
  • Memory mirrors with LIN bus function
  • Memory mirrors without LIN bus function
• Navigation / Camera / Driver Assistance
  • All around vision camera circuit
  • Blind spot monitoring circuit
  • Driver camera circuit
  • Lane departure warning circuit
  • Navigation circuit with base receiver audio module
  • Navigation circuit with mid-level receiver audio module
  • Navigation circuit with high-level receiver audio module
  • Navigation with HiFi radio and active sound design
  • Navigation with HiFi radio without active sound design
  • Navigation without HiFi radio and active sound design
  • Parking assistant circuit
  • Rear camera circuit
• Passive Restraints
  • Passive restraints circuit
• Power Distribution
  • Power distribution circuits
  • Fuse box, relay, terminal power supply and module feed circuits
• Power Door Locks
  • Power door locks circuit
• Power Mirrors
  • Power mirrors circuit
• Power Seats
  • Front heated seats with memory
  • Front heated seats without memory
  • Heated steering wheel circuit
  • Lumbar circuit with backrest
  • Lumbar circuit without backrest
  • Passenger power seat circuit
  • Rear heated seats circuit
  • Sport seats with lumbar
  • Sport seats without lumbar
• Power Top / Sunroof
  • Power top / sunroof circuit
• Power Windows
  • Power windows circuit
• Radio / Audio
  • Base radio with active sound design
  • Base radio without active sound design
  • HiFi radio with active sound design
  • HiFi radio without active sound design
  • Receiver audio module base circuit
  • Receiver audio module mid-level circuit
  • Receiver audio module high-level circuit
• Shift Interlock
  • Shift interlock circuit
• Starting / Charging
  • Charging circuit
  • Starting circuit
• Supplemental Restraints
  • Supplemental restraints circuit
• Transmission / AWD / Rear Axle
  • Automatic transmission circuit
  • AWD circuit
  • Rear axle circuit
• Trunk / Tailgate / Fuel Door
  • Contact-free tailgate opening circuit
  • Trunk and fuel door release circuit
• Warning Systems
  • Warning systems circuit
• Wiper / Washer
  • Wiper and washer circuit