2015 with only P0A03 ?

So then I would think next you would be looking at the schematic of this engine and testing some temp sensors to see if you actually have a temp sensor that's way out of whack I believe in the manual repair manual there are specs for all of these tests many of these tests can be lengthy and you'll need a pin and paper to mark stuff off Don't try to remember this nonsense you'll be on a chasing your tail game for days Make sure you check your water pump and whatnot these things have a plastic wrapped impeller they start to split the plastic rubs the inside of the bore that it's running in and starts to massively slow down or not turn at all and then you have overheat conditions so be very methodical in your checks this series of vehicle will leave you stranded and high and dry very quickly It does not care anything about you It's made this way.