Description
The KONNWEI KDIAG is a Bluetooth-enabled full-system OBD2 automotive diagnostic scanner that turns your smartphone or tablet into a professional car diagnostic tool. It connects wirelessly (via Bluetooth 5.0/5.2) to your vehicle’s OBD-II port and works with both Android and iOS devices through the proprietary KDIAG app.
📍 Core Functionality
🚗 Universal OBD-II Diagnostics
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Works with most cars manufactured since 1996 that support the OBD-II standard (16-pin).
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Reads and clears fault codes (DTCs) from the vehicle’s computer (engine, emissions, etc.).
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Displays live sensor data in real time, with graphing and recording features.
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Shows freeze frame data — a snapshot of vehicle parameters at the moment a fault happened.
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Retrieves vehicle information like VIN (via Auto-VIN), CAL ID, and CVN.
🧠 Full System Diagnostics
Unlike basic OBD-II code readers, the KDIAG can scan multiple systems beyond just the engine, including:
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Engine & Powertrain
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Transmission
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ABS (Anti-Lock Braking)
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SRS (Airbag System)
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ESP / Stability Control
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TPMS (Tire Pressure Monitoring System)
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A/C and Climate Control
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Body Electronics (windows, lights, locks)
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Immobilizer / Key systems
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Suspension & Steering modules
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Multimedia and Navigation systems
This makes it suitable for both DIY car owners and professional mechanics.
🔄 Specialized Service & Reset Functions
The device also offers special service functions, which are useful after maintenance or part replacement:
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Oil Reset — clears service lights after oil changes
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Battery Match — registers a new battery with the vehicle’s system
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EPB Reset — service mode for electronic parking brakes
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DPF (Diesel Particulate Filter) Reset
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ABS Bleeding
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Throttle & Injector Coding
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IMMO / Key Programming functions
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Steering Angle Sensor (SAS) Calibration
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Gear Learning & Suspension Matching
These help perform deeper repairs and service tasks beyond simple diagnosis.
📱 Connectivity & App Features
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Bluetooth 5.x wireless connection for reliable data transfer.
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Works with the KDIAG mobile app (free download from App Store / Google Play).
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Auto-VIN recognition — the app can detect your vehicle automatically.
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Diagnostic reports — full health reports can be generated and shared.
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Multi-language support and updates provided through the app.
🏎️ Compatibility & Coverage
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Supports most global car brands — from Audi, BMW, Mercedes, Toyota, Honda, Ford, to premium marques like Bentley and Rolls-Royce.
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Covers systems on over 30+ brands worldwide, with ongoing app updates expanding compatibility.
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Works on 12V vehicles only (passenger cars & light trucks).
📦 Physical & Accessory Details
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Small, plug-and-play design that fits directly into the OBD-II port.
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Often comes with a storage bag, user manual, and free lifetime updates through the app.
🛠️ Who Should Use It?
✔ Car owners who want deeper insight into their vehicle’s health
✔ DIY enthusiasts doing their own maintenance
✔ Professional mechanics needing a portable diagnostic tool
✔ Workshops that want full system diagnostics without expensive hardware.







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