Specification:1， This one can't support for or Trucks，thanks2， Lateat software version V2.1 supports most of OBD-II protocols. 3， Pls use Android System V4.0 to V4.3 version.4， This one not support for iOS System.Features:bluetooth ELM327 is the newly developed wireless scan tool. It supports all OBD-II protocolsWorks with all OBD-II compliant vehiclesWireless (Bluetooth)Software included for Palm， PDASoftware included for Windows PCSoftware included for Windows SmartphoneSupports ISO 9141， KWP2000Supports SAE J1850Supports CAN busFunctions:Read diagnostic trouble codes， both generic and manufacturer-specific， and display their meaning (over 3000 generic code definitions in the database).Clear trouble codes and turn off the MIL ("Check Engine" light)Display current sensor data， including:Engine RPMCalculated Load ValueCoolant TemperatureFuel System StatusVehicle SpeedShort Term Fuel TrimLong Term Fuel TrimIntake Manifold PressureTiming AdvanceIntake Air TemperatureAir Flow RateAbsolute Throttle PositionOxygen sensor voltages/associated short term fuel trimsFuel System statusFuel PressureMany others...Read diagnostic trouble codes， both generic and manufacturer-specific， and display their meaning (over 3000 generic code definitions in the database).Clear trouble codes and turn off the MIL ("Check Engine" light)Support OBD-II protocol:ISO15765-4 (CAN)ISO14230-4 (KWP2000)ISO9141-2J1850 VPWJ1850 PWMPackage included:1 x C Mini ELM327 OBD2 II Bluetooth Car Auto Diagnostic Interface Scanner1 x CD Drive