TOPDON announces ONE Series diagnostic tools

The TOPDON ONE includes features like dealer-level control over coding tasks, robust topology, and more.
Feb. 24, 2026
3 min read

TOPDON USA has announced the launch of its new ONE Series diagnostic platforms, designed to bring dealer-level technology to technicians at a lower price point. The new series includes the TOPDON ONE and TOPDON ONE LITE, each offering a number of advanced auto repair solutions such as clear network mapping, smart repair guidance, and deep coverage across modern vehicle systems. 

TOPDON ONE includes several advanced features which are traditionally reserved for more expensive diagnostic tools. For faster diagnosis, ONE offers topology showing how systems communicate and where faults appear. Technicians can also tap into pre-configured coding shortcuts on modern vehicles and adjust comfort settings, lighting options, and even convenience functions without manual coding. For common service tasks, the ONE supports more than 50 maintenance functions, including reset adaptations and calibrations used in routine service. 

TOPFIX AI, TOPDON's built-in artificial intelligence tool, is included with the ONE as part of an active software subscription. TOPFIX AI is the company's latest integrated technology feature that interprets fault codes and streamlines the diagnostic process. It also provides clear fault code explanations, likely causes, related symptoms, and structured repair steps in one view. Additional no-cost subscription functions include EOBD Diagnostics, Read/Clear DTCs, Live Data Stream, and Active Tests.

A word from TOPDON

“Our new TOPDON ONE series is making dealer-level diagnostic technology accessible to more auto technicians,” said Chad Schnitz, Vice President of TOPDON USA. “The ONE series, which was pioneered by our team of more than 250 engineers, features proprietary technology that integrates even more functionality into our products. The result is a lower-cost tool with more sophisticated features, making it ideal for DIYers and pro techs on a tight budget.” 

“The TOPDON ONE makes vehicle maintenance and repair simpler for techs at every skill level,” said Schnitz. “Whether a professional tech or a DIYer working on their personal vehicle, we intentionally designed the ONE to be the primary tool technicians turn to first. It’s simple to use and makes vehicle service data accessible with only one tap.” 

Additional features include:

  • J2534 Pass-Thru programmer allowing technicians to perform OEM software updates and module programming.
  • CAN-FD and DoIP communication protocols for compatibility with newer vehicle networks. 
  • Authorized support for FCA, Renault, Nissan, and other SGW-equipped models.
  • Dual Wi-Fi modules to maintain stable communication and high-speed data transfer between the tablet and VCI. 
  • 8-core processor to manage multi-system scans, coding operations, and large volumes of live data without delays. 
  • Live Data Display to view up to 12 live parameters simultaneously for easier comparison. 
  • Structured diagnostic reports that include fault codes, module status, and test results. 
  • BTMobile ProS compatibility for true, in-depth battery diagnostics.

TOPDON in the news

TOPDON USA releases TC001 Max, latest dual lens thermal camera

The TC001 Max is fully compatible with iOS, Android, and Windows devices. 

TOPDON adds RLink X3 to diagnostic line

The RLink X3 works on eight OE software systems and can achieve OEM-level diagnostics when paired with OE software.

TOPDON shares key industry insights in latest survey

Over 3,000 professional automotive technicians were surveyed across North America, with results highlighting repair challenges and more.

More from TOPDON

The RLink X3 from TOPDON is designed to work on eight OE software systems and achieves OEM-level diagnostics when paired with OE software, including ECU programming and coding, active component testing, and special functions.

The ArtiDiag900BT from TOPDON  offers support for 28 maintenance services and full system diagnostics for over 130 brands.

The TOPDON ArtiDiag800 features full system diagnostics for 54 vehicle makes and offers 28 service functions for domestic, European, and Asian vehicles newer than 1995.

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