I have a 2005 Dodge Grand Caravan that has a remanufactured rear wiper motor I recently had to replace because it stopped working. That one was installed last year. This new one I installed (remanufactured) works but only turns about 1/2 turn, stops then goes another 1/2 turn, stops etc. until it goes back to its normal start position. I am wondering if it is a defective wiper motor or if there is a relay that may have gone bad causing this? I can't find any info about the relay's for the rear wipers anywhere.