Check Engine light after loosened gas cap, where's OBD and what scanner to reset?

[@lex]

Right after left gas cap loose (cuz the hook/wouldn't let turn much) the Check Engine light came on and remains on even after tightening gas cap.

Where is the OBD port location on the 2007 RX400h?

What Diagnostic Scanner tool (from ebay/amazon or similar in USA) is good for this Hybrid and how do I clear/reset the check engine light??

Tanks!

[jetfixer01]

The ODB connector is under the dash to the left of the steering wheel. Any code reader should be able to do a reset. Most auto parts stores will do it for you.  If that was all that caused the light, it will probably go out on its own after a few start/operating temperature/shutdown cycles without seeing the evap fault.