Hi all, new to the site as i have just got a Galaxy 1.9tdi Ghia 02 plate. I know this topic has been discussed many times already, however i can not seem to find the answer to this question, how do i know if the brains are duff or the sensors. I get the flashing light and the long tone, checked for water under the seat, bone dry. If i unplug the sensors from the control i still get the fault tone, does the unit check for the sensors? Is there any easy way of finding the fault? Private buy so can't take it back to be fixed. Any help would be gratefully received. Kev