Originally Posted by magnus
do I have to be conserned about the FCIM or anything due to the battery dieing on me?
Your primary battery is the Passenger side (the one the GPCM and starter/Alt is directly connected to)...the Drivers side is considered the Aux battery, true they're connectred in parallel, but I would opt for the Pass side first...it is usually the first one to go ^^ up also. Yes, I would be concerned about dead batteries. When my wife left my headlights on all day (she still denies this)...of course my Passenger side battery would not hold a charge. Replaced both batteries...1 month later replaced FICM. This is a common occurrance. I would definately check your FICM as described by Dr Quad. You may even consider getting a FrankenFICM...there are a few guys doing this Swamps, IDP, etc..