on some vehicles the OBD port is "always on" this can drain the battery on a parked vehicle ( over time)
also the ODB port location in some vehicles puts an OBD reader in the way of my boot going for the parking brake pedal
so I got an extension with a switch- (this one is no longer available, but there are others)
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
and I use this dongle:
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
As we do, old phones become obsoleted.
I use one old iPhone in the van which has the OBDFusion app on it
and it could be a spare if I ever drop mine in the river
While I find OBDFusion very useful and have even used it to reset trouble lights on rentals cars, it doesn't do everything.
One forum member had ABS & stabiltrak lights come on after a dyno smog test and couldn't reset those with the app.
On my prius it will tell me the only general condition of the battery- but I need a specialized app to see the condition of each cell in the battery
but it works dandy in the van
mike