Ok thats good to know, my T200 2003 is hands only, yes l have a digital multimeter which think is ok, just tried it on a new 9v duracell and reads 972.
Had it going today and this time on start up there was no hissing, press green button and no hissing, drove it for about 100yds trying not to move hand controls left or right and went over some bumps then hissing started but could of moved RH handle slightly on bumps, when this happens l do not get ACS lockout, but if l stop and restart the ACS lights up when press green operate, if lucky l will get one chance per day to run it without ACS lockout, normaly first time try after batt disconection.
Had it going today and this time on start up there was no hissing, press green button and no hissing, drove it for about 100yds trying not to move hand controls left or right and went over some bumps then hissing started but could of moved RH handle slightly on bumps, when this happens l do not get ACS lockout, but if l stop and restart the ACS lights up when press green operate, if lucky l will get one chance per day to run it without ACS lockout, normaly first time try after batt disconection.