My father's '98 Grand Voyager has an issue with the front wipers. First, the delay feature doesn't work as the wipers keep swiping as though they're set to the Low setting. Second, the wipers keep running for up to 5-6 swipes after the wiper switch is turned to the off position. During the time when the wipers should but won't park, they do "stutter" a bit when they're at or near the down position and then continue on to swipe again. This is all I know about it. Been doing some reading but I'm more confused than ever to know where to begin to look for this issue...relay, BCM, wiper switch, or the motor assembly? Anyone have this happen to them and if so how'd you fix it?