I've gotten these codes several times. On the dyno, when the alternator was dying, after a spin. Usually it was a one time event and the light went out quickly. After sunday's track day I had a C1175 code that I found with no ESP/BAS light. Wheel speed sensor is possible. If was a one time error i wouldn't worry about it. If the light stays on you need a code reader that's capable of identifying exactly where the problem lies…unfortunately.

Les