Ive noticed there are two brake pedal switches on mine too but don't know why either. Can anyone else tell us?
Are the brake lights still working with only one switch working? Its unlikely but could one switch be for the high level brake light? Easy to check for both I suppose.
If you replace the faulty switch I would take a photo of its placement before removing. I assume that both are adjusted the same amount.
Finally I would have thought that the brake light switch is a separate problem than the loss of power unless someone can explain otherwise!
Rob, the second switch is the stop fueling signal to the ECU when you brake.