This tutorial of how to use OBDSTAR X300 DP key master to read Renault Grand Senic Pin Code
Here you are :
Connect X300 DP host with vehicle via diagnostic socket
Turn ignition on
Select Diag Program->Renault->Renault V30.11 -> PinCode Read->Type 2
Remove the smart card, turn ignition off, press the Start button.
Press ENTER to continue
Reading pin code
OBDSTAR X300 DP read Renault Grand Senic from key card success.