Here I want to share the procedures on how to use GM GDS2 software to diagnose and read diagnostic trouble code for Buick Regal 2009 2.0L LDK.
VXDIAG NANO GM Interface or other compatible hardware.
Plug the your GM GDS interface to vehicle.
Open “GDS2” on the desktop. Click “Diagnostics”
If it prompt you “Unable to determine veicle”,please press “Enter” to continue
Here select 2009
Select “Module Diagnostics”
Select “Engine Control Module”
Select “Diagnostic Trouble Code(DTC)”,then click “Enter” to continue
Now it will show the diagnostic trouble code as below
Repair the problems,then clear the trouble codes.