The TOPDON ONE Lite is a multi-brand diagnostic tablet, combining full-system diagnostics, ECU coding, topology mapping and bi-directional active tests for everyday workshop use.
Built around a 10.1-inch touchscreen, an 8-core processor, 4 GB RAM and 128 GB storage, it provides a practical diagnostic platform for independent workshops and technicians working across multiple vehicle brands.
Supporting over 120 vehicle brands, the ONE Lite allows technicians to read and clear fault codes, monitor live data, test supported components and carry out more than 50 maintenance functions.
The supplied ONE VCI supports CAN FD and DoIP communication, with wireless connectivity between the tablet and interface. It also offers J2534 Pass-Thru capability through TOPDON’s RLink platform for use with compatible separate OEM software.
TopFix AI provides fault-code explanations, possible causes and repair guidance, while topology mapping helps technicians see how vehicle modules communicate and identify systems reporting faults.
One year of software updates is included. Security gateway access requires an additional subscription. Coverage and available functions vary by vehicle make, model, year and system.
Key Features
- Full-system diagnostics across over 120 vehicle brands
- 10.1-inch touchscreen display
- Read and clear diagnostic trouble codes
- ECU coding on supported vehicles
- Bi-directional active tests
- Topology mapping
- AutoVIN vehicle identification
- TopFix AI fault-code assistance and repair guidance
- Live data viewing with up to 12 parameters simultaneously
- Diagnostic report generation and sharing
- More than 50 maintenance functions
- CAN FD and DoIP support
- J2534 Pass-Thru capability with compatible separate OEM software
- ONE VCI with wireless communication
- Android 12.0 operating system
- One year of software updates included
Topology mapping, TopFix AI and certain ECU coding functions require an active software subscription. OEM software and licences for Pass-Thru use are separate. DoIP system diagnostics are not supported when using OEM software.
Maintenance Functions
Includes more than 50 maintenance functions for supported vehicles, including:
- Oil Service Reset
- Electronic Parking Brake Reset (EPB)
- Battery Management System Reset (BMS)
- DPF Regeneration
- Steering Angle Calibration
- Injector Coding
- ABS Bleeding
- Throttle Adaptation
- Camshaft Learning
- Relative Compression Testing
- Dynamic ADAS Calibration
Function availability depends on the vehicle and system being tested.
Ideal For
- Independent workshops
- Multi-brand servicing and repair garages
- Technicians carrying out everyday fault-finding
- Component testing and live data analysis
- Routine maintenance and service resets
- ECU coding and component matching on supported vehicles
Optional Upgrades
BTMobile ProS Battery Tester
Add battery health testing and starting and charging system checks with the compatible BTMobile ProS battery tester, sold separately.
Security Gateway Access
Additional subscriptions provide authorised access to supported protected vehicle systems, including FCA, Renault, Nissan and VAG SFD. Applicable accounts and manufacturer authorisation may be required.
Software Subscription Renewal
Extend software updates beyond the included first year to receive new vehicle coverage and retain access to subscription-dependent features.



