Yeah, I checked both hubs. Neither bearings seems like it is bad. Both connectors are tight and clean. Nothing logged or anything. I have a spare hub, but I haven't changed any out because I that doesn't seem to be the problem. Last time a wheel speed sensor went bad, the scanner I borrowed pointed me to the correct hub. This time, the only code I got was the "C1236 - System Voltage Low" Just makes no sense to me....