This is my 3rd board over the past 17 years and just put in last year. Started getting intermittent no cell power and no cell power 2 errors this weekend. Checked the k1 relay and no burn marks. I went ahead and resoldered the pin anyway. Can anyone tell me what this circled area on the board controls. It looks like one of the pins had a slight burn. I added a bit if solder to this area as well. So far no errors but it was intermittent over last 3 days.