Description
JDiag • Automotive diagnostic tool T300
The JDiag T300 is a professional-grade OBD-II diagnostic tool designed for vehicles that comply with the OBDII standard (covers up to about 97% of models). It features a 2.8-inch color screen, visible data stream graphics, real-time voltage monitoring, and automated vehicle year recognition. Ideal for both seasoned technicians and car owners who require deeper engine and emissions diagnostics in a compact, durable design.
Key benefits
- Reads and clears Diagnostic Trouble Codes (DTCs), including pending and permanent codes, with built-in code lookup.
- Supports live sensor data, freeze frame viewing, Mode 6 and Mode 8 component tests plus I/M (inspection/emissions) readiness.
- Battery diagnostics: startup, charging, load tests, and OBD-PIN voltage detection for evaluating battery and charging system performance.
- Cloud printing of reports via QR code, shortcut key customization, and online software upgrades to stay compatible with new vehicles.
- Durable ABS housing, anti-slip grip design, and portable size for workshop or mobile use.
Supported protocols
- ISO 9141-2
- ISO 14230-4, KWP2000 (5-baud init and fast init)
- SAE J1850 PWM
- SAE J1850 VPW
- ISO 15765-4 CAN (11-bit & 29-bit IDs, 250 kb/s & 500 kb/s)
Supported functions
Depending on vehicle compatibility the following functions are supported:
- Read and clear DTCs; show engine, emission-related, manufacturer-specific, and permanent codes
- Real-time sensor data stream in both digital and graphic view; freeze frame data
- I/M readiness status (emissions monitoring) and Mode 6 & Mode 8 (component/EVAP system) tests
- Battery tests (startup, charging, load) plus O2 sensor monitoring and voltage detection
- Vehicle information retrieval (VIN, calibration data), cloud report printing, short-cut function keys
Included items
- 1 × JDiag T300 OBD-II scanner tool with integrated OBD cable
- 1 × user manual (multi-language edition)
Supported languages
English, Spanish, French, Italian, Russian, Portuguese, German, Polish, Dutch, Japanese, Turkish, Indonesian, Chinese










Reviews
There are no reviews yet.