Thinkcar 391 Professional Diagnostic Scanner – OE-Level, Online Programming, CAN FD, DoIP & J2534 | 2-Year Warranty & 3-Year Software Updates
The Thinkcar 391 is professional tcos diagnostic platform for full-system scanning, active tests, coding and online programming. It is positioned for professional technicians who need dependable diagnostics, clear workflow and workshop-ready hardware. Automax Tools supplies this product for multi-brand repair environments across the UAE, GCC and international markets.

Why Choose the 391?
This model is built around the needs of real workshop diagnostics: rapid vehicle identification, efficient system access, clear live information and the ability to move from fault detection to verification without unnecessary steps. Its feature set is designed to help technicians reduce diagnostic time while maintaining the depth required for modern vehicles.
Diagnostic & Service Capabilities
- Full-system OE-level scanning with DTCs, live data, freeze-frame and vehicle health information
- Bi-directional actuation tests to command supported components during troubleshooting
- Advanced coding and supported online programming for compatible brands
- Video remote diagnostics for cloud-assisted technical support
- 41 maintenance functions for common service and reset procedures
Hardware & Connectivity
Workshop productivity depends on both software capability and reliable hardware. The core specification of this product is summarized below.
| Display | 10″ IPS HD, 1280×800 |
|---|---|
| Platform | Thinkcar TCOS |
| Memory | 4GB RAM / 128GB storage |
| Battery | 12,600mAh |
| VCI / Protocols | THINKLINK Lite; CAN 2.0, CAN FD, DoIP, J2534 |
Ideal Workshop Applications
- Professional multi-brand workshops needing advanced coding and programming capability
- Late-model vehicle service requiring CAN FD or DoIP communication
- Technicians performing active tests, service resets and detailed live-data analysis
- Shops that want optional EV and heavy-duty expansion capability
Professional Workshop Value
For workshops comparing professional automotive diagnostic tools, the Thinkcar 391 offers a balanced combination of vehicle coverage, service capability and technician-focused operation. It is suitable for routine fault finding, maintenance work and more advanced diagnostic procedures on supported vehicles. Functions such as coding, programming, security access, active tests, special resets or module expansion depend on the exact vehicle, software package and accessory configuration.
Automax Tools regional package: This listing includes 3 years of passenger-vehicle software updates. EV and heavy-duty software packages are optional unless specifically included.
Compatibility & Package Notes
Online programming, coding, EV/heavy-duty coverage and individual special functions vary by vehicle and regional software availability.
Before ordering: If you need confirmation for a specific vehicle, model year, ECU, programming function or regional software package, contact Automax Tools with the VIN or vehicle details so compatibility can be checked before purchase.
Buy Thinkcar 391 from Automax Tools
Choose the Thinkcar 391 for a professional diagnostic solution backed by Automax Tools product support. This listing is prepared for technicians, garages, diagnostic specialists and automotive service businesses looking for reliable equipment with clear specifications and practical workshop capability.
Warranty: 2 years. Software updates: 3 years included with this scanner.





























Leo S. – Nordic Drive Service – Oslo, Norway
Excellent coverage across European vehicles. The Thinktool Expert 391 has improved our workflow dramatically. It’s one of the smartest tools we’ve invested in.
Fatima E. – SpeedyFix Auto – Rabat, Morocco
We use the Thinktool Expert 391 for everything from oil resets to injector coding. It’s efficient, lightweight, and easy for my staff to learn.
Rami B. – Smart Wrench Workshop – Doha, Qatar
This is the second Thinktool device I’ve owned, and the Expert 391 is fantastic. Great screen, smooth navigation, and fast ECU communication.
Saeed A. – ProFix Auto Care – Sharjah, UAE
The Thinktool Expert 391 helped us solve a persistent ABS fault on a Lexus. Its fast scanning and module access make it a perfect tool for daily use.
Khalid A. – MaxTech Garage – Jeddah, Saudi Arabia
I recommend the Thinktool Expert 391 to any mid-level or mobile mechanic. It does everything you need without the complexity.
Faisal M. – Autotek Solutions – Muscat, Oman
The Thinktool 391 gives access to service functions like DPF regeneration and SAS reset. It even handled key programming on a Hyundai i20.
Samir N. – AutoFlash – Tunis, Tunisia
I was able to diagnose a CAN BUS issue using the Thinktool Expert 391’s topology map. It saved me hours of work.
Moise K. – Congo Car Clinic – Kinshasa, DRC
The Thinktool 391 is fast, multilingual, and excellent for African car models too. The cloud report sharing is a bonus.
Rania M. – FastFix Garage – Abu Dhabi, UAE
What I like most about the Expert 391 is the wide vehicle coverage. From Japanese sedans to American trucks, it gets the job done.
Clara J. – Nordic AutoScan – Stockholm, Sweden
Easy to carry, intuitive to use. Perfect for quick diagnostic jobs or on-site visits. The Thinktool Expert 391 is a reliable partner.
Luca V. – AutoTech Garage – Milan, Italy
The Thinktool 391 helped me clear airbag faults and reprogram ABS modules on multiple brands. The updates are regular and easy to install.
George T. – FixPoint Auto – Athens, Greece
Great tool for small-to-medium workshops. I use the Thinktool Expert 391 for throttle resets, injector coding, and TPMS services every day.
Jamal A. – Precision Garage – Riyadh, Saudi Arabia
The Thinktool Expert 391 gave me dealer-level access to all modules. I performed key programming on a Toyota Corolla in under 10 minutes.
Marta L. – EuroFix Workshop – Barcelona, Spain
I love the balance of performance and portability. The Expert 391 offers live data graphing, fast VIN scanning, and over 30 service reset functions. Totally worth the investment.
Omar K. – SmartDrive Auto – Dubai, UAE
The Thinktool Expert 391 is my go-to diagnostic tool. It handles full system scans quickly and supports advanced ECU coding for both Asian and European cars.