was working on the rear end of the d1 and this fell out of nowhere (from under the passenger side)
only marking is pp-tv10 trw
only marking is pp-tv10 trw
As for its purpose, yet to figure that one out
My guess is that the cab would get pressurized if you have the ac or heat running, and the flap releases that pressure to increase output from HVAC. I recently covered mine up... might have to rethink that