The intermittent wipers no longer work on my 1999 Sienna. Work in low and high speed position. When swithched on intermittent works at regular low speed. Wipers no longer park themselves in the normal off position on the windshield. They stop wherever they are at the time the switch is turned off. I was going to start with looking at the switch stalk, but have heard that it is likely the motor is the issue and the "park brushes" inside are worn. Anyone else with a similar experienc?

Wipers stopped working altogether today. Fuse was okay. Hit motor twice with a hammer and it started workign again. Time to replace the motor.