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: 45 mA

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