ONE Plus

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.

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.

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. 

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.

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.

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.

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. 

The Topdon ONE Plus includes 2 years of free software updates.

When you buy from TOPDON UK, you’re choosing the confidence of a genuine UK distributor. Every product comes with full UK warranty coverage and fast, reliable local support — no overseas delays, no grey imports, no uncertainty. Just authentic TOPDON tools backed by a dedicated UK team that’s here to help whenever you need it.