This is true. I've had wheel bearings replaced in the past. I've also had the lights come on almost three years ago that was diagnosed as a "CODE C0050 RT REAR CIRCUIT ERROR, CONNECTOR ICED UP & NOT MAKING CONTACT. CORRECTION: CLEAN TERMINALS IN CONNECTOR & FILL WITH DIELECTRIC GREASE". Unfortunately it's not winter yet so it's unlikely to be iced up. I just figured that using a scan tool I already have with software might help me dig in a bit deeper, so that if I do need to replace a wheel hub, I can do it when I put on my winter tires.