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In the past, mechanics and car tuners have to use bulky diagnostic tools with large screens and connector cables, or laptops plugging into the OBD II port. THINKDIAG changes that. Plug the THINKDIAG dongle into your car, connect it to your smartphone via Bluetooth, and your smartphone becomes a professional diagnostic tool. With powerful diagnostic plus 16 maintenance functions, THINKDIAG helps taking care of your vehicle easier ⁠— time and cost saved. It comes with two free 1-year manufacturer software subscriptions, giving you access to all diagnostic functions and all maintenance functions of the manufacturer you picked.

Note: Customers must be 18 years old+ to purchase

  • Support reading system fault codes & clear system fault codes
  • Read vehicle’s live data & present by graph
  • Special functions such as reduction of steering angle, maintenance light turn to zero - model dependent
  • Actuator system testing via app
  • Full OBD II & EOBD functions for full system scans to help you make informed car maintenance decisions
  • Live data stream graphing for visual comparison of multiple real-time data to better understand your car
  • Bidirectional functions let you send & receive commands from the ECU
  • Free 1-year manufacturer software subscriptions w/ 16 maintenance functions
  • Supports 115 car brands, equivalent to 95% of models available in the market
  • In ThinkMoments, users can share their experiences, diagnosis, test reports, send messages to each other & get advice or tips


  • 4.4/5 stars on Amazon: ★ ★ ★ ★
  • Succcessfully funded on Kickstarter at $127,013


  • Color: red, black
  • Materials: PCP
  • Product dimensions: 2.1"L x 3"W x 1.1"H
  • Weight: 2.8 oz
  • Input: 9-18V
  • OBD II All Systems Diagnosis
  • All Systems Full Functions Diagnosis
  • Automatic VIN reading
  • Remote Diagnosis
  • Diagnostic Report
  • Special Functions
  • Actuation Tests
  • WEB remote diagnosis
  • Online diagnostic report
  • Community interaction
  • Wisdom online store
  • Real-time data stream (analyze group of waveform)
  • 16 maintenance functions
  • App: ThinkDiag (iOS or Anroid)
  • Free 1-yr subscription
  • Manufacturer's 1-year warranty


  • All vehicles after 1996 support OBD II protocol:
    • ISO 14230-4(KWP2000)
    • ISO 15765-4(CAN)
    • ISO9141-2(iso)
    • ISO14229(uds)
    • SAEJ1850(VPW&PWM)
  • App: iOS 9.0 or later, Android 5.0 or later


  • THINKDIAG: Professional Vehicle Diagnostic Tool
  • User manual


  • Ships to US
  • Expected Delivery: Oct 30 - Nov 3


  • Returns accepted within 30 days of shipment for orders within the Contiguous US.