11) Read diagnostic trouble codes, both generic and manufacturer-specific, and display their meaning (over 3000 generic code definitions in the database)
12) Clear trouble codes and turn off the MIL ("Check Engine" light)
13) Display current sensor data, including:
14) Engine RPM
15) Calculated Load Value
16) Coolant Temperature
17) Fuel System Status
18) Vehicle Speed
19) Short Term Fuel Trim
20) Long Term Fuel Trim
21) Intake Manifold Pressure
22) Timing Advance
23) Intake Air Temperature
24) Air Flow Rate
25) Absolute Throttle Position
26) Oxygen sensor voltages/associated short term fuel trims