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WELCOME10 · 10% off orders $89+

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  • THINKCAR ThinkDiag bluetooth OBD2 diagnostic dongle physical product display
  • THINKCAR ThinkDiag bluetooth OBD2 dongle with ECU coding, bi‑directional control, full‑system diagnostics and 15 reset service functions
  • THINKCAR ThinkDiag bluetooth OBD2 dongle infographic showing 15 special maintenance reset service functions
  • THINKCAR ThinkDiag bluetooth OBD2 dongle showing bi‑directional active test interaction between smartphone app and vehicle
  • THINKCAR ThinkDiag bluetooth OBD2 dongle ECU coding function demonstration
  • THINKCAR ThinkDiag simplifies vehicle diagnostics with smart technology: live data viewing, health report and auto VIN identification via mobile app
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ThinkCar DIY

THINKCAR ThinkDiag

$89.00 USD
$89.00 USD
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The THINKDIAG turns your smartphone into a powerful professional-level automotive diagnostic scanner. Built for DIY mechanics, advanced car owners, and small repair shops, this compact Bluetooth diagnostic tool combines full-system diagnostics, bi-directional control, ECU coding, 15+ service functions, AutoVIN, live data analysis, and vehicle health reports in one portable solution. Go beyond simply reading fault codes. THINKDIAG can communicate with supported vehicle control modules, command components for active testing, perform module adaptations and selected ECU coding functions, and handle common maintenance procedures from your phone. Compatible with 120+ vehicle brands and most OBD-II vehicles from 1996 onward, THINKDIAG gives users workshop-level diagnostic capability without the size and complexity of a traditional scan tablet.

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Together
  • US warehouse
  • 30-day returns
  • 1-year seller warranty
  • Bi-Directional Control for Real Active Testing
  • ECU Coding for Module Matching & Vehicle Customization
  • Full-System Diagnostics on 120+ Vehicle Brands
  • 15+ Professional Service & Reset Functions
  • Complete OBD-II Diagnostics from Your Phone
  • Automatic Vehicle Recognition with AutoVIN
  • Compare Four Live Data Streams at Once
  • Generate, Save, Share & Print Vehicle Health Reports
  • Wireless Bluetooth Diagnostics with iOS & Android
  • Diagnostic Feedback for More Confident Troubleshooting
  • 1-Year Free Software Updates
  • Compact Professional Diagnostics for DIYers & Small Shops

Learn more

What vehicles are compatible with THINKDIAG?

THINKDIAG works with most OBD-II vehicles built from 1996 onward and supports 120+ vehicle brands worldwide. Vehicle coverage and available functions may vary depending on the vehicle make, model, year, and system configuration.

Can THINKDIAG perform full-system diagnostics?

Yes. THINKDIAG supports all-system diagnostics for major vehicle systems, including Engine, Transmission, ABS, SRS, BCM, TPMS, SAS, BMS, A/C, and more. It can read and clear fault codes, display live data, access ECU information, perform active tests, and support maintenance functions on compatible vehicles.

Does THINKDIAG support bidirectional control and active tests?

Yes. THINKDIAG features bi-directional control, allowing the scanner to send commands to supported ECUs to activate vehicle components and perform functional tests. This helps technicians verify whether a component or control circuit is working properly and reduce unnecessary part replacements.

Can THINKDIAG perform ECU coding?

THINKDIAG supports ECU coding for selected vehicles and modules. ECU coding availability depends on the vehicle make, model, year, and specific control module. Not all vehicles support ECU coding functions, so please confirm compatibility before use.

What maintenance functions does THINKDIAG support?

THINKDIAG provides 15+ professional maintenance functions, including:<br>Oil Service Reset<br>Injector Coding<br>ABS Brake Bleeding<br>DPF Regeneration<br>Throttle Adaptation<br>Brake Reset<br>TPMS Reset<br>SAS Reset<br>Battery Matching<br>Immobilizer Matching<br>Gearbox Matching<br>AFS Matching<br>Suspension Matching<br>ETS Reset<br>Sunroof Initialization<br>Available functions may vary by vehicle.

Is THINKDIAG suitable for DIY users or professional mechanics?

THINKDIAG is designed for DIY mechanics, advanced vehicle owners, and small auto repair shops. Its compact design, Bluetooth connection, full-system diagnostics, bidirectional testing, and maintenance functions provide professional-level diagnostic capabilities in a portable scan tool.

How does THINKDIAG connect to my vehicle?

THINKDIAG connects to your vehicle through the OBD-II port and communicates with the ThinkDiag+ App via Bluetooth. Simply install the app, create an account, activate the device, connect it to your vehicle, download the required vehicle software, and begin diagnosis.

Can THINKDIAG generate diagnostic reports?

Yes. With Auto VIN technology, THINKDIAG can automatically identify supported vehicles and generate detailed vehicle health reports after diagnosis. Reports can be saved, shared via email, and printed for repair records or customer communication.

Does THINKDIAG provide software updates?

Yes. THINKDIAG includes 1 year of free software updates to help keep the device updated with the latest supported diagnostic coverage and functions.

Does THINKDIAG support live data monitoring?

Yes. THINKDIAG supports real-time data streaming with graphical displays and data recording. Technicians can monitor vehicle parameters, track performance changes, and analyze abnormal data to improve troubleshooting efficiency.
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Bi-Directional Control for Real Active Testing
Go beyond passive fault-code reading with bi-directional control. THINKDIAG can send commands directly to supported vehicle ECUs and activate components without manually operating the vehicle controls. Run active tests on components such as windshield wipers, power windows, headlights, and other supported actuators, then observe whether they respond correctly. By commanding the component directly, technicians can quickly separate an actuator failure from a wiring or control problem—reducing diagnostic time and helping avoid unnecessary parts replacement.
ECU Coding for Module Matching & Vehicle Customization
Take diagnostics further with ECU Coding on supported vehicles and control modules. THINKDIAG can perform functions such as component matching, adaptation after module replacement, supported feature activation, selected setting adjustments, and personalization of compatible vehicle functions. Whether a replacement module needs to be matched to the vehicle or a supported comfort feature needs to be configured, ECU Coding gives technicians more control after repairs instead of stopping at basic fault-code clearing. Availability varies by vehicle make, model, year, and control module.
Full-System Diagnostics on 120+ Vehicle Brands
Get a complete view of the vehicle instead of diagnosing only the engine. THINKDIAG provides full-system diagnostics for supported modules including Engine, Transmission, ABS, SRS, BCM, TPMS, SAS, BMS, A/C, and more. Read and clear DTCs, access ECU information, view real-time data, and investigate faults across multiple systems from one app. With coverage for 120+ vehicle brands and most OBD-II vehicles from 1996 onward, it provides broad diagnostic capability for U.S., European, and Asian vehicles.
15+ Professional Service & Reset Functions
Handle common maintenance and repair procedures directly from your phone with 15+ professional service functions. THINKDIAG supports Engine Oil Lamp Reset, Injector Coding, ABS Bleeding, DPF Regeneration, Throttle Adaptation, Brake Reset, TPMS Reset, SAS Reset, Battery Matching, Immobilizer Matching, Gearbox Matching, AFS Matching, Suspension Matching, ETS Reset, and Sunroof Initialization. These functions help complete routine maintenance, component replacement, relearning, calibration, and system reset procedures more efficiently. Available functions vary by vehicle.
Complete OBD-II Diagnostics from Your Phone
Turn everyday OBD-II diagnostics into a wireless workflow. Through the THINKDIAG app, users can perform essential diagnostic operations including reading and clearing DTCs, viewing ECU information, monitoring live data, analyzing vehicle operating parameters, and performing supported system diagnostics. The smartphone-based interface eliminates the need to carry a separate diagnostic tablet, making THINKDIAG convenient for driveway repairs, mobile technicians, and small workshops.
Automatic Vehicle Recognition with AutoVIN
Spend less time entering vehicle information and more time diagnosing. AutoVIN automatically identifies compatible vehicles and retrieves key vehicle information, helping THINKDIAG load the appropriate diagnostic software and begin scanning faster. It simplifies vehicle selection, reduces manual-entry mistakes, and provides a smoother starting point for full-system diagnosis and vehicle health checks.
Compare Four Live Data Streams at Once
See how vehicle systems behave while the problem is actually happening. THINKDIAG supports 4-in-1 live data graphing, allowing multiple vehicle parameters to be viewed together instead of checking them one by one. Compare sensor readings and operating values side by side, monitor changing conditions in real time, and record data for further analysis. This makes abnormal trends easier to recognize and helps technicians move from fault codes to the actual cause of the problem faster.
Generate, Save, Share & Print Vehicle Health Reports
Turn diagnostic results into useful repair records. After scanning a supported vehicle, THINKDIAG can generate a vehicle health report showing diagnostic information and detected faults. Reports can be saved for future reference, shared by email, or printed for repair documentation and customer communication. This makes it easier to document vehicle condition before repairs, explain findings, and confirm results after service.
Wireless Bluetooth Diagnostics with iOS & Android
Plug THINKDIAG into the vehicle's OBD-II port, pair it with your smartphone through Bluetooth, and diagnose without being tied to a cable or dedicated tablet. The mobile diagnostic platform supports Android and iOS, allowing users to perform vehicle scans, active tests, service functions, ECU coding, and live-data analysis directly from a compatible phone or tablet.
Diagnostic Feedback for More Confident Troubleshooting
When a fault is difficult to identify, diagnostic information can be submitted through the Diagnostic Feedback function for further technical analysis. This gives users an additional support path when vehicle behavior, software communication, or diagnostic results require deeper investigation—helping DIY users and technicians move forward instead of getting stuck at an unfamiliar fault.
1-Year Free Software Updates
Keep diagnostic coverage and functions current with 1 year of free software updates included with THINKDIAG. During the included update period, users can access available software improvements and supported vehicle coverage updates, helping the scanner stay useful as diagnostic databases and vehicle support continue to evolve.
Compact Professional Diagnostics for DIYers & Small Shops
Professional diagnostic capability does not have to mean carrying a large scan tablet. THINKDIAG packs full-system scanning, active tests, ECU coding, maintenance functions, AutoVIN, live data, and reporting into a compact Bluetooth dongle that works with the phone you already carry. It is an ideal step up for advanced DIY users and small repair shops that need deeper diagnostic capability without adding another large piece of equipment to the toolbox.

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