the fuse box in the cab should be on the right side low down on the dashboard, sort of below knee level. It is a small pull down flap, all the fuses and what they do are listed on the inside of the flap. Your handbook should explain all.
I would go out to the car and check which fuse it is etc, but for 2 reasons. 1. It's damn cold today and 2. I'm off work with flu!
Hope that was helpful.