ELECTRIC PROBLEM CLEAN ENGINE

Greetings to all, if anyone can help me? The windshield clean of my Citroen Ax 1992 works at the first and second speed, but does not return to its resting position, when you turn off the windshield., Stop in different positions, it does not work in the intermittent position, also in the position of a single cleaner does not work, thank you if someone can help me
separate the engine and the interucer cam there is a relaw ???