KONNWEI KW850 OBD2 CAN BUS Code Reader Car Engine Fault Code Detector Scanner with One-Click I/M Readiness Key TFT Display for US European Asian Vehicles 1996 and Later Diagnostic Tool Black
KONNWEI KW850 OBD2 CAN BUS Code Reader Car Engine Fault Code Detector Scanner with One-Click I/M Readiness Key TFT Display for US European Asian Vehicles 1996 and Later Diagnostic Tool Black
KONNWEI KW850 OBD2 Code Reader with One-Click I/M Readiness and TFT Display
The KONNWEI KW850 is an OBDII/EOBD scanner designed to quickly diagnose check engine light faults on 1996 and later US, European and Asian vehicles. It retrieves generic and manufacturer-specific trouble codes, displays DTC definitions, and supports all 10 OBDII test modes. With a patented One-Click I/M Readiness Key, TFT colour display and built-in speaker, this tool helps mechanics and DIY users work faster. The device also reads live PCM data, freeze frame data, and O2 sensor test data, and can graph sensor readings for newer cars. Its built-in memory backup allows off-vehicle data review, saving time during diagnostics.
Features and Construction
The KW850 combines a robust set of diagnostic functions with durable, portable construction. Its key features include code reading, I/M readiness testing, live data graphing, and multi-language support, all housed in a protective nylon case for daily workshop use.
One-Click I/M Readiness
The patented One-Click I/M Readiness Key lets you instantly check whether a vehicle’s emissions monitors are ready, a critical step before emissions testing. This saves technicians from navigating menu systems and speeds up the test process.
Code Reading and DTC Lookup
The scanner retrieves generic codes (P0, P2, P3, U0) and manufacturer-specific codes (P1, P3, U1) with on-screen DTC definitions. It also includes a built-in OBDII DTC lookup library and thousands of troubleshooter code tips to assist with diagnosis and repair decisions.
Live Data and Graphing
View live PCM datastream, O2 sensor test data, and freeze frame data. Graph sensor readings for 1996 and newer vehicles to identify intermittent faults. The device also supports reading, storing and playing back live sensor data for later analysis.
Uses and Placement
The KW850 is suitable for professional garages, mobile mechanics, and experienced DIY owners. Its compact size and protective case make it easy to carry to different vehicles, while the large backlit LCD screen ensures readability even in dim conditions.
Professional Workshop Use
Mechanics can use the KW850 for quick code reading and emissions readiness checks before MOT or state inspections. The ability to print data via PC and support for eight languages (English, French, German, Dutch, Spanish, Russian, Portuguese, Italian) aids multi-lingual workshops.
DIY Home Use
Car owners can diagnose their own check engine light faults, clear codes after repairs, and monitor live data without a trip to the garage. The scanner is compatible with CAN and all other current OBDII protocols, covering most 1996 and later vehicles.
Benefits and Buying Value
The KW850 offers professional-grade diagnostic capability at an affordable price point. Its comprehensive code coverage, live data graphing, and software upgradeability add long-term value for users who maintain multiple vehicles or work in automotive trades.
Reuse and Low Maintenance
The device is powered via the OBDII port, with battery backup for off-vehicle data review. No replaceable batteries are needed, and software updates are available via internet for free. The protective nylon case and USB cable for PC printing reduce wear from daily use.
Why Choose This Product
Compared to basic code readers, the KW850 offers graphing, multi-language support, and a comprehensive DTC lookup library. The One-Click I/M Readiness Key is a time-saving feature not found on many entry-level scanners, making it a smart choice for emissions-focused diagnostics.