My windshield wiper's do not work with delay or wash funtions. on 2001 Dodge Ram 2500

Multi-function switch was replaced. What else could be broke?

Asked by for the 2001 Dodge Ram 2500
I believe there is a module for the delay, so need to check that. Best to have a wiring diagram to be able to trace the whole system from the motor all the way up to the switch. will have the wiring and repair manual info and it is very reasonable.