Take a look at Page 7-67 and 7-68 in the Owner's Manual - that shows where the two fuses (one under the dash, another under the hood) and two relays are (under the hood). If the two fuses are good, I'd check the relays next.
Since your wipers are working (just not auto/intermittent), we can assume something is wrong with the rain sensor. Try switching the horn relay with the rain sensor relay to see if that fixes it (assuming these relays are identical, compare pins to make sure). Otherwise, there maybe something wrong with the rain sensor itself or the stalk.