Best KONNWEI KW850 OBD2 Scanner Review 2021[Update]

KONNWEI KW850 is a computer scanning tool to help car owners diagnose vehicles. It provides basic and professional scanning capabilities. It is suitable for any car, light truck, hybrid vehicle, SUV or hybrid vehicle produced in 1996. It can be used by car owners, diyers and car enthusiasts. It can quickly read and freeze frame data, record and print real-time vehicle data, and access manufacturer specific diagnostic codes (OEMs) to monitor battery voltage, temperature and engine speed. KW850 OBDII Auto Engine Diagnostic Code Scanner features a 2.8-inch LCD color screen and a one-click I/M ready state design to quickly scan the health of the vehicle engine.

KONNWEI KW850 Bullet Points
  • Compatibility Of KW850: The Konnwei OBD2 KW850 works on petrol and diesel passenger cars, SUVs, and light trucks, built after 1996. The device is compatible with all PC and Android systems except iOS.
  • Not Only Turn off the Check Engine Light: Unlike other cheap car diagnostic scanners, KW850 OBDII code reader covers full OBDII/ EOBD diagnostic functions for engine system. O2 sensor test, EVAP systems test, and on-board monitoring test give you full control of your vehicle’s running status, while a graphical and numeric live data stream display will help you to find out the faulty sensor readings.
  • Software and Update: The package comes with a CD that contains software for installation on your personal computer or laptop. With the software installed and the device connected via USB, you can always check for updates.
  • Save Money and Time: The KW850 car computer reader is a professional vehicle diagnostic tool for car owners to quickly read and erase DTC (engine fault codes) as well as a battery tester. A look-up library with over 8, 000 built-in generic code definitions allows you to accurately identify the cause of your CHECK ENGINE and perhaps fix it without going to see your dealer. It also assists you in easily passing annual emissions tests and SMOG CHECK.
  • Exclusive 4 Live Sensor Readings Analysis: The KW850 OBDII adds some unique features such as memory backup for overpass data review and analysis, textual display of vehicle real-time sensor data, and graphical display of four sets of real-time data to help customers better analyze sensor anomaly parameters. (Other OBD2 scanners can only display 1 set of data)
  • One-Click Fast& Accurate I/M Readiness: Show vehicle’s status of various Emissions-related System data to indicate whether the vehicle’s monitors have run and completed their testing or not. Fully check the vehicle with KW850 fault codes readers before you go to SMOG CHECK, help you to get ready for emission inspection and pass it. Save your time and money.
  • Life-time Free Online Update & Print Service: Check the updating apps on official website, download and install on windows. Press and hold any button of the scanner, meanwhile connect the unit to your PC, then release, it will be in Update Mode.
  • Easy to Use: Simply plug into the OBD II port on your car, turn the ignition on and you are ready to go. No battery or complicated apps install needed.
  • Best in the Market: KONNWEI KW850 code reader car diagnostic tool is coming with the user friendly diagnostic interface and optimized software algorithm, it makes diagnosis 2-3 times faster than other OBD2 scanners. Featuring 2. 8” LCD color screen and graphical real time sensor analysis, may help you fast identify faulty readings in seconds. Extra-long (4. 5′) diagnostic cable coming in the package, allows you freely diagnose your cars even outside of vehicles.

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The KONNWEI KW850 Review
4.7/ 5

Love the interface on this scanner. I was able to troubleshoot and find the code needed within seconds. Has very long cable, probably 6 feet. Will be learning to use all it’s features soon.

Why choose the KONNWEI KW850 Auto Scanner?
  • Multilingual diagnostic interface
  • High Quality and High Resolution TFT colorful display helps you easily to find out the troubles of your car.
  • Bright color coded LEDs and built-in speaker provide both visual and audible tone for readiness verification.
  • Patented appearance design & Key pad, unique patented One-Click I/M Readiness Key, it is the best partner for car repairing.
  • Featured 24-hr battery real-time monitoring during diagnostics, keep your car battery in healthy status.
  • Integrated memory card allows storage of Trouble Codes, Live Data and freeze frame, Playback and review data when away from the vehicles.
  • Bright color coded LEDs indicators and built-in speaker provide both visual and audible tone for readiness verification
  • Universal scanners works on ALL 1996 and newer vehicles (OBDII & CAN) in USA, Most 2003 after EU (EOBD), 2006 after Asia car brand vehicles, suitable both diesel and gasoline 12V cars.
  • Data printable through USB cable, allows modify and print-out stored data.
  • Internet up-gradable via USB port, adapted to Windows XP- Windows 10. (other scanners only work for windows 7)
KONNWEI KW850 Automotive Scanner Function List
  • Read engine or emission related fault codes error codes.
  • Erase and delete the fault code,
  • Turns off Check Engine Light (MIL), warning light, clears codes and resets monitors
  • Retrieves generic (P0, P2, P3 and U0), manufacturer specific (P1, P3 and U1) codes and pending codes
  • Easily determines the cause of the Check Engine Light (MIL), show definitions of the fault codes.
  • Displays monitor and I/M readiness status (emissions)
  • Reads live PCM data stream
  • Displays Live sensor data readings in both text mode and graph mode (1996 and newer vehicles)
  • Storage data stream, and playback, printing the stored sensor readings.
  • Views freeze frame data to analyze the real cause of engine failures
  • Displays live O2 oxygen sensor test data
  • Enhanced OBD2 Mode 6 On Board Monitoring Test Results for Specific Monitored Systems.
  • EVAP System test data
  • Battery Voltage real time monitoring and health status check.
  • Retrieves vehicle information (VIN code, CIN and CVN Number)
  • Built-in DTC look-up library and display definition.
  • Troubleshooter code tips guide technicians to the root cause of a trouble code faster, save diagnosis and repair time
  • Internet updateable and upgradeable, life-time update free
  • Prints the stored trouble codes/ freeze frame/ live data readings via PC, works for all windows system.
  • Works on all 1996 and later OBDII compliant US, European and Asian vehicles.
  • Features the unique patented One-Click Readiness Key for quick State Emissions readiness check and drive cycle verification.
KONNWEI KW850: Advantages VS Disadvantages
Pros Cons
Works on both petrol and diesel motor vehicles. It is not compatible with iOS devices.
Compact, strong, and durable: Its interface makes it simple for one to navigate without any complications. KONNWEI KW850 does not work on heavy-duty trucks.
Excess voltage protection: You can check the performance and record live data as you drive.
  • Question: How does this obd2 scanner tool work? can it erase code and can it be upgraded?
    Answer: KOMMWEI obd2 scanner tool can fast read coders of engine failure and turn off the CHECK ENGINE LIGHT, very helpful. And there are lots of exclusive functions (For further information, please refer to the product description. This obd2 unit built-in DTC lookup library for manual retrieval and shows code definition, and can be upgraded timely.
  • Question: Does this work on 2012 VPG mv-1
    Answer: Yes, the OBD scanner KW850 fully supports the 2012 VPG MV-1 passenger cars, and this scan tool has more feature and all the functions you need, such as read the oxygen sensors and check which sensor is failed, complete function to check all emission related trouble code and universal code reader can works on all cars after 1996 made in USA, which is quite useful for home garage as well. Hope this tips could help you out. regards from Jeffrey- DIY MECHANICS TEAM.
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