I have had the same issue. It is the wiring harness from the plug by the wheel bearing towards the car. If you go to a parts store some stores will have the factory replacement harness some wont. But if you can get it from advanced auto or o rileys or something like that it will be about half the price it is from gm. gm I think want s real close to 100 for it, and the other stores around here arte at about 48. But that is ur problem its on the car side of the harness, it will come with new plug and about 3 ft. of new wire.
