1. Read both general and manufacturer-specific error diagnosis codes and display their meanings (the database contains over 3000 common code definitions). 2. Clear the error code and deactivate the ("Check Engine" indicator). Display current sensor data, which includes: Engine speed per minute (RPM) Calculated load value Coolant temperature Fuel system status Speed Throttle absolute position Short-term fuel status Associated oxygen detection voltage Fuel pressure Fuel consumption monitoring Data graph display and logging Freeze frame data Continuous and discontinuous oxygen detection results Supports 5 languages Communication protocols: SAE J1850 PWM (41.6 Kbaud) SAE J1850 VPM (10.4 Kbaud) 9141-2 (5 baud init, 10.4 Kbaud) 14230-4 KWP (5 baud init, 10.4 Kbaud) 14230-4 KWP (fast init, 10.4 Kbaud) 14230-4 CAN (11bit ID, 500 Kbaud) 14230-4 CAN (29bit ID, 500 Kbaud) 14230-4 CAN (11bit ID, 250 Kbaud) 14230-4 CAN (29bit ID, 250 Kbaud) Specifications: Model: V309 Working voltage: 9-16V Working current: 80mA Operating environment: -30 to 70°C Storage temperature: -30 to 80°C Material: plastic Color: Red Package Contents: 1 x Car fault detector Only the contents listed above are included, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to slightly differ from the actual product. The measurement allowed error is +/- 1-3cm.