Elevate your auto repair workflow with the 2026 TOPDON ONE Lite, a professional 10.1-inch bi-directional diagnostic scanner built for dealership-level performance. Designed for auto technicians and repair shops, this all-in-one scan tool delivers full-system diagnostics, OE-level topology mapping, TopFix AI guidance, ECU coding, J2534 pass-thru programming, and 50+ special service functions. It supports CAN FD, DoIP, and SGW access, covering 120+ vehicle brands and over 10,000 models for old and late-year cars.
Core Key Features
Full System Bi-Directional Diagnostics
Perform complete system scans for ECM, TCM, ABS, SRS, BCM, TPMS, SAS and more. Supports reading/clearing DTCs, viewing 12 live data streams simultaneously, and active bidirectional control to test components without disassembly. AutoVIN and AutoScan enable one-tap full module identification and fast fault pinpointing.

OE-Level Topology Mapping & TopFix AI
Visualize real ECU network topology with clear module connection diagrams and highlighted fault areas. Built-in TopFix AI interprets fault codes, provides failure causes, symptoms, and step-by-step repair guidance to speed up troubleshooting and reduce guesswork.

Professional ECU Coding & J2534 Pass-Thru
Dealer-grade ECU coding for BMW, Mercedes-Benz, VW/Audi, Skoda, Seat. Adapt new modules, customize vehicle settings, and perform component matching. Work as a J2534 Pass-Thru VCI for OEM software updates and module reprogramming on modern vehicles.


CAN FD & DoIP Protocol + SGW Access
Fully compatible with CAN FD and DoIP communication protocols. Supports DoIP vehicles: 2013+ BMW, 2016+ Volvo/VW, 2018+ Mercedes-Benz, 2020+ GM/Chrysler. Advanced SGW gateway access for FCA, Nissan, VAG and Renault protected systems.
50+ Maintenance & Reset Functions
Covers 99% daily repair needs: Oil reset, EPB calibration, DPF regeneration, ABS bleeding, SAS reset, battery registration, injector coding, TPMS reset, A/C adaptation, ADAS calibration, start-stop setup, and more. Perfect for routine service and advanced repairs.

Premium Hardware & Fast Connection
Equipped with 8-Core 2.0GHz CPU, 4GB RAM + 128GB ROM, running Android 12.0 for smooth multitasking. Dual 2.4G/5G WiFi delivers 3x faster communication than Bluetooth. 10.1-inch 1280×800 HD display, 10000mAh large battery, and 8MP rear camera for on-site capture.
Wide Vehicle Coverage & Multi-Language
Supports 120+ global brands and 10,000+ vehicle models. Comes with 15-language options for global users. Compatible with BTMobile ProS for expanded battery health testing.

ONE Lite vs ONE / ONE Plus
- ONE Lite: Supports ECU coding for BMW/Benz/VAG; no hidden function flashing
- ONE: Adds hidden flash for BMW, Benz, VW/Audi
- ONE Plus: Full coding + flashing for Porsche, JLR, Ford, Toyota and more brands
System & Hardware Specs
- Screen: 10.1-inch 1280×800
- OS: Android 12.0
- CPU: 8-Core 2.0GHz
- Memory: 4GB RAM + 128GB ROM
- Battery: 10000mAh, fast charging supported
- Connection: Dual WiFi 2.4G/5G, Bluetooth 5.0, USB-C
- Working Temp: -10℃ ~ 50℃
- Weight: 1574g

Package Includes
1 × TOPDON ONE Lite Main Unit
1 × VCI Vehicle Communication Interface
1 × Charger
1 × Diagnostic Extension Cable
1 × Type-C Cable & USB-A to Type-C Cable
1 × Carrying Case & Quick Start Guide

User Manual Download Link
https://drive.google.com/file/d/1oE0mbw08erWf75s94MPT7prXlQRquFHa/view
Why Choose TOPDON ONE Lite
The 2026 TOPDON ONE Lite balances professional power and cost efficiency. It integrates full-system diagnosis, bi-directional test, AI repair help, topology mapping, ECU coding, and 50+ service functions in one tablet. Ideal for independent garages, professional mechanics, and serious DIY enthusiasts to boost repair speed and profit.