Description
YMIOT • OBD2 Automotive Diagnostic Tool MS309
The MS309 OBD2 automotive diagnostic tool is a handheld device ideal for mechanics and car enthusiasts who need fast, reliable engine fault detection. The instrument plugs into the vehicle’s OBD-II (16-pin) connector and powers itself from the car’s diagnostic port; no batteries required. The screen displays real-time data, fault code definitions, and vehicle info. Designed with a simple two-button interface and clear LCD, the tool makes diagnostics accessible without steep learning curves.
Key benefits
- Reads and clears generic and manufacturer-specific diagnostic trouble codes (DTCs), and turns off the check engine light
- Displays freeze frame and I/M readiness status, plus retrieves vehicle information such as VIN, CID, and CVN
- The device powers through the vehicle’s 16-pin OBD-II port—no batteries needed
- Operates over a wide temperature range (approx. 0-60 °C), suitable for varied workshop or roadside conditions
- A large clear LCD screen with built-in fault code definitions for quick reference on site
Supported protocols
- SAE J1850 PWM
- SAE J1850 VPW
- ISO-9141-2
- ISO-14230-4 (KWP2000)
- ISO-15765-4 CAN (11-bit and 29-bit IDs at several baud rates)
Supported functions
Depending on vehicle compatibility, the following functions are supported:
- Reads stored, pending, and manufacturer-specific DTCs with on-screen definitions
- Erases fault codes and resets the check engine light
- Views freeze frame data capturing engine parameters at the time of fault
- Check I/M readiness status for emission systems
- Retrieves vehicle identification data: VIN, CID, CVN
Included items
- 1 × MS309 OBD2 scanner device (Part No. MS309)
- 1 × user manual (language: English)
Supported languages
English, German, Dutch, Spanish, French










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