ELM327 USB is the latest PC-based scan tool. It supports all OBD-II protocols and is dispatched with a number of compatible programs. The processor is an ELM327 USB. The output protocol (connection to laptop) is USB.

Processor: ELM327 USB

OBD-II Protocols:

ISO15765-4 (CAN)

ISO14230-4 (KWP2000)

ISO9141-2

J1850 VPW

J1850 PWM

Output protocol: RS232

Baud rate: 9600 or 38400

Indicator LEDs: OBD Tx/Rx, RS232 Tx/Rx, Power

Operating voltage: 12V, internal protection from short circuits/overvoltages

Nominal idle current: 45ma

Description:

OBD-II Software for ELM327 USB is a free program that allows you to use your PC and a hardware interface to get the information from your car's computer.

The program is very user-friendly, and easy to learn. It is also very easy to install: simply extract the files into a folder on your computer's hard drive, and you're ready to go. To uninstall the program, simply delete the entire contents of the folder where the program resides.

The software supports two platforms - DOS and Windows.

The program lets you perform the following operations:

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 RPM

Calculated Load Value

Coolant Temperature

Fuel System Status

Vehicle Speed

Short Term Fuel Trim

Long Term Fuel Trim

Intake Manifold Pressure

Timing Advance

Intake Air Temperature

Air Flow Rate

Absolute Throttle Position

Oxygen sensor voltages/associated short term fuel trims

Fuel System status

Fuel Pressure

Many others...

Upcoming Features:

Data graphing and logging

Freeze Frame data

Continuous and Non-Continuous Oxygen Sensor test results

Free software:

Scantool.net

GM Mode 22 Scan Tool by Terry

OBD Gauge for PalmOS and Pocket PC by Dana Peters

OBD Logger by Jonathan Senkerik

OBD-II ScanMaster by Wladimir Gurskij (ScanMaster 3.52 - local copy)

obd2crazy.com

OBD2 Scantool by Ivan Andrewjeski

OBDII for ELM322 by David Huffman

pyOBD by Donour Sizemore for MacOSX and Linux

RDDTC by Pete Calinski

Real Scan by Brent Harris

ScanTest for Pocket PC by Ivan Ganev aka a-ser

wOBD by WDT