so, we just got my sons 2016 Camry back from the body shop after a collision. went looking at the areas they repaired and found an electrical connector hanging but don't see what it would be connected to. Just forward of the radiator and hood latch support bracket. comes of the same trunk as what I believe is an ambient air temp sensor.

 

Plug located in the center?

Electrical items in the area may be horn (might be two horns), some kind of hood courtesy switch, the air temp sensor is lower down.