First post and advice needed please! The VSA light is permanently on and the VSA button does not work. I currently have error code 84-01 Sensor Logic Failure. My local Honda dealer have stated (over the telephone) that this is likely to mean a new VSA modulator. From the sticky thread here the DTC for a fried unit is 66-1? I can't figure out or find anywhere or on google what the DTC 84-01 relates to! The dealer would not discuss the code with me without checking it first themselves. I recently had all 3 ABS / Brake / VSA lights on. I had this code and one relating to an ABS sensor being down, the ABS sensor has been replaced, that code reset and the ABS and Brake dash lights are gone. The VSA light remains. The car still drives fine with no noticeable problems. Any suggestions or past experience with this code would be greatly received. I'm not willing to fork out for a new unit and a refurb is still pretty steep. Thanks in anticipation.