The OBD-II protocol supported by this product is: 1) ISO9141-2(5 baud init10.4Kbaud) 2) ISO14230-4 KWP (5 baud init 10.4 Kbaud) 3) ISO14230-4 KWP (fast init 10.4 Kbaud) 4) ISO15765-4 CAN (11bit ID 500 Kbaud) 5) ISO15765-4 CAN (29bit ID 500 Kbaud) 6) ISO15765-4 CAN (11bit ID 250 Kbaud) 7) ISO15765-4 CAN (29bit ID 250 Kbaud) 8) AE J1939 CAN (29bit ID 250*Kbaud) 9) USER1 CAN (11*bit ID 125*Kbaud) 10) USER2 CAN (11*bit ID 50*kbaud) Functions: 1) Read diagnostic trouble codes both generic and manufacturer-specific and display their meaning (over 3000 generic code definitions in the database). 2) Clear trouble codes and turn off the MIL (Check Engine light). Display current sensor data including: 1) Engine RPM 2) Calculated Load Value 3) Coolant Temperature 4) Fuel System Status 5) Vehicle Speed 6) Short Term Fuel Trim 7) Long Term Fuel Trim 8) Intake Manifold Pressure 9) Timing Advance 10) Intake Air Temperature 11) Air Flow Rate 12) Absolute Throttle Position 13) Oxygen sensor voltages/associated short term fuel trims 14) Fuel System status 15) Fuel Pressure