Description
YMIOT • OBD2 Automotive Diagnostic Tool BT529
The YMIOT OBD2 Automotive Diagnostic Tool BT529 is a professional-grade diagnostic scanner combining full-function vehicle diagnostics with accurate battery testing. Designed for mechanics, service shops, and serious car enthusiasts, the instrument features a 2.8-inch full-view HD IPS display, rugged construction with a protective TPU cover, and dual connectivity via hardwired OBDII cable and Bluetooth 5.1 for mobile app use. The tool measures core battery parameters (voltage, internal resistance, residual cold cranking amps, state of charge, state of health), supports all ten OBDII modes, handles all nine major vehicle communication protocols, and delivers enhanced functions such as Mode 6 testing and EVAP system leak detection. Operating temperature ranges from 32-140°F (0-60°C), powered directly via the vehicle’s 12V system, and built for universal use on 1996-onward US gasoline vehicles and equivalent EOBD/EU/Asia models. A light sensor adjusts screen brightness automatically, making it usable under varying lighting.
Key benefits
- Precise battery diagnostics: voltage, internal resistance, remaining CCA, SOC, SOH
- Full OBDII functionality, including reading/clearing DTCs, freeze frame, real-time data, and Mode 6
- Broad vehicle compatibility: supports 9 standard protocols—CAN (11- and 29-bit), ISO9141-2, KWP2000, J1850 VPW and PWM, etc.
- Dual connectivity: wired OBDII cable for direct use, Bluetooth 5.1 for smartphone app integration
- Durable build: IPS screen, scratch-resistant cover, protective TPU housing, auto dim sensor
Supported protocols
- SAE J1850 PWM (41.6 kb/s)
- SAE J1850 VPW (10.4 kb/s)
- ISO 9141-2
- ISO 14230-4 (KWP2000), including fast init
- ISO 15765-4 CAN (11-bit and 29-bit IDs, 250/500 kb/s)
Supported functions
Depending on vehicle compatibility, the following functions are supported:
- Reads and clears diagnostic trouble codes (DTCs)
- Freeze frame data viewing
- I/M readiness/emissions monitor status
- Real-time data streaming and real-time data curve visualization
- Oxygen sensor test data and Mode 6 enhanced diagnostics
- EVAP system leak test
- Retrieves vehicle information (VIN, CALID, CVN)
Included items
- 1 × diagnostic scanner unit with OBDII connector (Model BT529)
- 1 × protective TPU cover (included with scanner unit)
Supported languages
English, German, French, Spanish, Italian, Portuguese, Russian, Japanese, Korean, Thai, Dutch, Polish, Finnish












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