Working on a 2007 Chevrolet Trailblazer SS replacing the wiper motor circuit board. The problem with it is the wipers only work on hi. Lo and intermittent doesn't work. Initially replaced the turn signal and wiper assembly on the steering wheel thinking that was the issue, but it wasn't. Researched it and these wiper motor circuit boards go out and it's a easy replacement. Ended up buying just the circuit board on Ebay. Rock Auto does have the whole assembly for the same price. We will end up taking the wiper arms off, cowl off and wiper arm motor assembly off. This did fix my problem. Hope this helps someone! See you on the next video!