If your PNP-3200 device is not working, please use the following troubleshooting steps to reset the pinhole.
PNP-3200 Pinhole Reset Procedure
Find the device reset pinhole.
Insert a small, unfolded paperclip or similar object and push in until you feel or hear a click.
Plug the device back into the OBD II port or the bypass cable.
Wait a few minutes and follow the normal troubleshooting procedures.