Hi. Right. My ABS light is on and the speedo has packed in. So my question is would a garage computer diognstic test tell me the individual ABS sensor at fault or just give me the code I got off my dash test being dtc E200. My local garage wants £40 to hook it up. Is it worth it to tell me nothing if that's the case or well worth it to get the exact sensor at fault if that's the case.