My truck. slowly over this week ,has lost battery power. Now it wont crank! I notice the less and less crisp starts, that is normal when starting. The Batteries are less then a year old, and so is my starter. I would think it is the alternator. But first I am posting this issue. I also, about a week ago, had code 122 pop up. and this is when I noticed the battery power loss. Coincidence? I dont think this could drain the batteries when sitting. Also the alternator reads 14 volts when running. But could'nt the amps still be low . My normal driving is a short distance to work. So not much time to recharge batteries if amperage is low. Any thoughts?