i just got my calibur back from the garage, i had to have a new alternator put in. the next day the engine light came on, went to advance auto and had them get the code. what does this mean other than powertrain control module internal shutdown timer rationality? I'm blonde ...tell me in blonde terminology. the cleared the code and it has not come back on yet but i don't want to let it go and be stranded somewhere if it is serious.