Midlife crisis on a budget

Well after being in the shop five weeks, I finally got her back. The transmission seems good now (although seemed fine before) but she has a couple more issues she didn't have before. Simple but still. Question though, how important is the abs wheel sensor? They said they fixed it (at no charge lol) but it's one of the codes again.

My EBCM was bad when I bought the car it threw ABS + TCS off lights. It also disabled cruise control + magnasteer. I bought one used for $25. What code did it throw?