I am having the same issue with my 2011 Pilot. I had my neighbor who is a mechanic look at everything with me. We checked the relays and the current to the blower motor and resistor. Best he could come up with was that the resistor needed to be replaced as he couldn't pinpoint the problem. I replaced the resistor today and there was no change. I don't want to take out the center console to replace the blower motor but it looks like that is what I am going to have to try next.