no ac no abs traced the fault and I've changed the 3 amp fuse that blew that originally caused the drain on the battery, but now the abs light has come on and won't go out (Granada 24V 92) short of putting it back into the hands of the guy who did the ac stuff, how do I solve te abs problem? can I check the resistance readings in the sensors from their input points at the ecu? (can't get to the 2 front ones without a serious amount of dismemberment of the front end) as for the ac, I think that the pressure switch has failed as there I s constant pressure in the system from the other switch