Elm 327

Features:
1. Supports all OBD-II protocols and is dispatched with a number of compatible programs
2. The processor is an ELM327
3. The output protocol (connection to laptop) is USB
4. OBD-II Software for ELM327 is a free program that allows you to use your PC and a hardware interface to get the information from your car's computer
5. The program is very user-friendly, and easy to learn. It is also very easy to install
6. The software supports two platforms - DOS and Windows
7. You can read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database)
8. Clear trouble codes and turn off the MIL ("Check Engine" light)
9. Output protocol: RS232
10. Baud rate: 9600 or 38400
11. Indicator LEDs: OBD Tx/Rx, RS232 Tx/Rx, Power
12. Operating voltage: 12V, internal protection from short circuits/overvoltages

Not for airbags, ABS, service or any system outside engine

The newest Elm 327 version on sale here supports all OBD-II protocols:

SAE J1850 - PWM

SAE J1850 - VPW

ISO 9141-2

ISO 14230-4 - KWP 2000

ISO 15765-4 / SAE J2480 - Controller Area Network (CAN)

Package includes:
1 x ELM327 USB interface
1 x CD software