330xi Speedo DSC ABS & Brake light on
 

After hours of researching, i've concluded that my driver rear wheel speed sensor probably needs to be cleaned or replaced. I have an error code (214) D6 Signal, road speed. Does any one know what this code means? Infrequently, the speedo and MPG stops working, ABS, Brake, and DSC light comes on. Only for a mile or two and then clears its self. At one point after the lights cleared the cruise control stopped working. But now it works again. Should I start with the rear wheel speed sensor? I have an error code (214) D6 Signal, road speed. Does any one know what this code means?

yes, that is exactly what that means. rear wheel speed sensor drives the speedo.