The TOPDON ONE Lite supports authorised access for FCA, Renault, Nissan, and other SGW-equipped models. Gain access to coding, active tests, clearing codes, and system-level service functions on supported vehicles. Compatibility includes current and upcoming SGW implementations. *Access to security gateway requires an additional subscription.

Coverage for Common Service Tasks | 50+ Maintenance Functions

​The TOPDON ONE Lite supports more than 50 maintenance functions, including resets, adaptations, and calibrations used in routine service work.

Functions include Oil/BMS/EPB resets, DPF regeneration, Dynamic ADAS calibration, camshaft learning, relative compression, and other system-specific procedures needed in daily repair operations.

TopFix AI | Integrated Fault Data & Repair Guidance

​Meet TopFix AI: TOPDON’S built-in artificial intelligence that interprets fault codes and streamlines the diagnostic process. It provides clear fault code explanations, likely causes, related symptoms, and structured repair steps in one view. When available, wiring diagrams and technical references appear alongside the data so technicians can move directly from fault identification to corrective action

Add-On Tools | Integrates with BTMobile ProS​

​The TOPDON ONE Lite pairs with the BTMobile ProS (sold separately) to perform battery health checks, voltage tests, and basic performance evaluations. This add-on expands diagnostic coverage and provides additional insight during vehicle inspections.