easy way, whip the steering wheel off (25mm socket iirc) undo all the gubbins around the column, then unscrew the plate thats at the top of the column, and it will reveal all of the stalks connectors etc. Have a play, see if they have come off ( i doubt it) but it's worth a try.
Other way, have a look see if you mistakenly pulled the connector off the wiper motor. (under the scuttle panel on the drivers side)