Built for professional repair shops and diagnostic specialists, the TOPDON ONE Plus delivers true OE-level performance. From advanced ECU programming and coding to more than 50 essential service functions, it gives technicians the control, speed, and access today’s vehicles demand.

With gateway support for FCA, Renault, Nissan, and VAG SFD, compatibility for the latest communication protocols, and high-speed WiFi VCI communication, the ONE Plus helps techs tackle common bottlenecks in modern diagnostics. Add intelligent AI-driven repair guidance and one-click customization features, and the result is faster troubleshooting, fewer restrictions, and higher shop productivity.

Features

Increase Revenue by Handling More Repairs In-House

• With professional ECU programming* for BMW and VAG vehicles across four core vehicle systems (ECM/SRS/ABS/TCM), the TOPDON ONE Plus diagnostic tool gives you the power to program blank ECUs, update ECU versions, recover lost ECU data, perform ECU data backup and more, helping to increase your job value and service potential.
• Available end of April.

One-Click Customization and Pro-Grade Coding

• Expanding your shop's capabilities, the ONE Plus supports ECU Coding* for 10+ leading brands. Match components, activate/deactivate functions, and optimize vehicle efficiency. With one-click customization integrated into the coding workflow, technicians can complete vehicle modifications and make driver preference changes with ease.
• Coding functions may vary by make, model, and year.

Find Faults Faster with OE Topology Mapping

• Stop digging through lists of modules and systems and start seeing the big picture. The ONE Plus features advanced OE Topology Mapping, giving you a “command center” view of the entire vehicle network. With color-coded system statuses and DTC numbers, you can visualize complex troubleshooting flows and identify faulty modules at a single glance.

Cut Diagnostic Time with TopFix AI Intelligence

• TopFix, a cutting-edge AI assistant, works like a repair partner by your side, analyzing trouble codes and delivering data-driven repair guidance in seconds. From identifying root causes to providing verified fixes and technical resources like diagrams, TopFix AI turns real-world diagnostic experience into an instant, actionable roadmap for every repair.

Dealer-Level Diagnostic Workflow

• Elevate your diagnostic game by using the ONE's VCI as a J2534 Pass-Thru device. The VCI operates as a professional pass-thru tool that syncs with OEM diagnostic software*, supporting 14 vehicle brands. It turns your Windows PC into a multi-brand factory workstation without a staggering investment. 
• OEM software purchased through the manufacturer's website. DoIP system diagnostics are not supported when used with OEM software.

Serve Next-Gen Vehicles and Future-Proof Your Shop

• With integrated CAN-FD and DoIP protocols, plus authorized support to FCA SGW, VAG SFD, and Renault/Nissan gateways*, the ONE Plus is the ultimate 'all-access pass' for the modern workshop. No matter how new or protected the vehicle is, you’re always in control.
• Access to SGW-protected systems may require OEM credentials where applicable.

Built for the Demands of a Busy Workshop

• The ONE Plus is built to support the real pace of professional repair work. With OE-level full-system diagnostics, bidirectional control, and more than 50 essential service functions, technicians can diagnose issues faster, complete service procedures efficiently, and keep vehicles moving through the shop.

Unlock More Work with Integrated IMMO Capabilities

• With built-in IMMO support, technicians can complete key-related services from their ONE Plus. They'll be able to add new keys, program keys after all keys are lost, delete old keys, and more, making your shop a total solution for your customers' service needs. 

Analyze Live Data with 12-Parameter Display

• Monitor up to 12 live data parameters at once to see how vehicle systems interact in real time. With multiple graphing and combined data display options, technicians can compare sensor readings, identify irregular patterns, and diagnose intermittent faults faster without switching between screens. 

Buy 1, Get 2 Free — More Tools, More Value

• We’re giving you more value for your investment. Every ONE Plus kit comes with a FREE TopScan Master Bluetooth dongle for ultra-portable smartphone diagnostics and a FREE BTMobile ProS battery tester for battery health check. From the engine bay to the palm of your hand, you're fully equipped.

Specifications

ONE Plus Specs

• CPU: 8-Core 2.0 GHz Processor
  
• Storage: RAM: 4 GB; ROM: 128 GB
  
• Screen: 10.1-Inch LCD, 1280×800 resolution
  
• Battery: 10000 mAh/3.8V
  
• Charging: PD fast charging (5V/3A, 9V/3A, 12V/2.5A)
  
• Camera: 16 MP with autofocus
  
• Bluetooth: 5.0 with 10m/33-foot range
  
• Dual WiFi Modules: Supports 2.4GHz & 5GHz (802.11 b/g/n/ac)
  
• Buttons & I/O: Power button, one USB-A (Host mode), one USB-C (Host/Device mode)
  
• Operating System: Android 12.0 (closed system)
  
• Storage Temperature: -20℃ to 70℃ (-4℉ to 158℉)
  
• Operating Temperature: -10℃ to 50℃ (14℉ to 122℉)
  
• Product Dimensions: 311×207×39mm (12.24×8.15×1.54 inches)
  
• Packing Box Size: 507×380×147mm (19.96×14.96×5.79 inches)
  
• Net Weight: 1574g (3.47 lbs)
  
• Languages: 45 Supported Languages (English, French, German, Spanish, Portuguese, Russian, Japanese, Korean, Italian, Traditional Chinese, Simplified Chinese, Turkish, Polish, Serbian, Slovak, etc.)
  

VCI Specs

• Bluetooth: 5.0 10m/33-foot range
  
• WiFi: Supports AP mode; 802.11 b/g/n (2.4 GHz), 2T2R; Up to 300 Mbps
  
• Storage Temperature: -20℃ to 70℃ (-4℉ to 158℉)
  
• Operating Temperature: -10℃ to 50℃ (14℉ to 122℉)
  
• Product Dimensions: 114.8×51×29mm (4.52×2.00×1.14 inches)
  
• Net Weight: 96g (3.39 oz)
  

Packing List

• ONE Plus
  
• ONE VCI
  
• Charger
  
• Diagnostic Extension Cable
  
• USB-C to USB-C Cable
  
• USB-A to USB-C Cable
  
• Quick User Guide
  
• Packing List
• Carrying Case
  
• Packaging Box
  
• Bonus:
  • TopScan Master
  • BTMobile ProS