Fault codes, live data and actuator tests

As described you can establish a diagnostic session with most electronic control units in the vehicle. When the diagnostic session is established the basic diagnostic screen will appear (picture 2).

If for some reason the diagnostic session can not be established you will be notified.

In the basic diagnostic screen you have a choice to read registered DTCs, clear them, display live data or to perform other actions from the "Special" button.

Read DTCs

To read all DTCs press the button "Read DTCs" - all DTCs with their status - current, history or pending - will be displayed.

Each DTC is described with its number (Uxxxx, Bxxxx or Cxxxx) and with a detailed description.

Clear DTCs

To clear stored DTCs in the electronic control unit press button "Clear DTCs".

Live Data

Live data, or so named measured values, is data sampled by the electronic control units giving us a detailed view of the current status of the corresponding unit.

Simply press the "Live Data" button and everything available from the current unit will be displayed - picture 3.

Actuator

Pressing the button "Actuator" will display the screen with the available actuator tests for the control unit: