When jump starting with delicate components such as ECU'S it is possible to damage them, with a high charging rate, once the car is running normally before disconnecting the two it's good to place a load on the battery such as a heater motor etc so you don't get a power spike. Doubt it is this just one posibility, as I said previously disconnect battery first this will clear the "alive memory" then it it comes on again it must be something registering a fault.

Martin