I was standing there watching him do it. The only sensor code that it was shooting off was that the front left tire was grounding. We actually solved that issue before taking it in. He cleared the codes after looking at them, drove it around to see the new codes, and the ones that were coming up again were the ones he looked at. One of the codes said something about the ABS Module malfunctioning and that the most usual cause was the control module needing replacement. another issue said it was the abs module malfunctioning and that the usual cause was one of the motors in the abs module going bad. He didn't write down the code numbers, but he did write down what they said.