So I just bought my 81, el Camino conquista this last Friday and didn’t notice the wipers did not work until I got home. I don’t know if it is a switch issue or a motor or maybe I’m just not understanding how to turn them on. Whenever I flip the switch from off to low and high I get no response. If I press in the switch I hear a click come from the motor. I have delay wipers. Any help diagnosing what I need to fix would be greatly appreciated!