Hello everyone! I am a new user and would like to thank everyone who contributes because you are a great help. Anyway, my Cads ABS and Traction Control lights inspired me to check the codes and I got a c1224. This is a r. rear wheel speed sensor reading zero. Being afraid to replace it without knowing it was actually the problem, I took it to the dealer to diagnose. The dealer charged $93 and said it was the rear sensor, cool! I bought a rear hub for $190 at NAPA , put it in and voila the warning lights came back on after I erased the codes. Does anyone have any thoughts? Could it be the wiring and how can I check? Thanks again!