Light shouldn't be on after the map was installed.
I had the same light come on after adding a 200 Cell Sports Cat TBE and after having the car scanned (and reset) at JKM Performance it was purely the addition of the TBE that had caused the light to come on with no underlying issues or problems.
As I haven't got my Stage 2 map done yet, it has come back on but at least there's no worry about why.
Get your car scanned and ask your tuner to sort it.