Pocket-Sized Powerhouse. The Topdon TopScan Pro reinvents DIY diagnostics. By plugging this compact dongle into your vehicle’s OBDII port and pairing it with the TopScan app on your phone, you unlock capabilities previously reserved for bulky, expensive tablets.

Unlike standard code readers, the TopScan Pro offers Bi-Directional Control, allowing you to send active commands to vehicle parts. Combined with a comprehensive Repair Data Library and 13+ reset functions, it is the ultimate tool for home mechanics and mobile technicians.

Why Choose TopScan Pro?

• ✓ Bi-Directional: Active tests for windows, lights, etc.
• ✓ Full Systems: Scan Engine, ABS, SRS, Transmission.
• ✓ Repair Guides: Built-in DTC repair guidance.
• ✓ 13+ Resets: Essential maintenance functions.

Bi-Directional Control

Stop guessing. Send active commands to vehicle modules to operate actuators—such as fuel pumps, A/C clutches, windows, and door locks—to instantly verify if a part is working.

Repair Data Library

Includes a comprehensive knowledge base with DTC Repair Guides and Technical Service Bulletins (TSBs), guiding you from fault code to fixed vehicle.

Full System Diagnostics

Go deeper than check engine lights. Scan all available onboard systems (Engine, Transmission, Airbag, ABS, ESP, TPMS, etc.) to read and clear codes and view live data.

13+ Reset Functions

Perform the most common maintenance tasks including Oil Reset, Throttle Adaptation, EPB Reset, Steering Angle Reset, DPF Regeneration, ABS Bleeding, and BMS Reset.

IMMO Capabilities

Includes basic key programming capabilities (IMMO), allowing you to add new keys and match remote controls for supported vehicle models.

Performance Testing

Test your vehicle’s performance with 0-60mph acceleration tests and other efficiency metrics, turning your diagnostic tool into a performance logger.