Is 2003 Pathfinder OBD2 Compliant

Hi
I have a 2003 Nissan Pathfinder SE. I plugged OBD2 bluetooth adapter with Android software on mobile for checking Engine light code , it connects with ECU but replies no code stored and does not show any live data.
The same adapter shows all data and returns all error codes on other vehicles i checked..
Anyone can guide about this problem.
Is 2003 Pathfinder SE OBD2 Compliant ? Any help is greatly appreciated.