A 12 volt draw on battery from a one wire alternator

ALSO you should check your meter to make sure a fuse is not blown in the amp (current) function. Set the meter up for current/ amps as before. READ the meter destructions and MAKE SURE you are set ofr "DC" current and not AC

It appears (read the book) that you must press the orange "sel" button to select one/ t other

Hook your probes up as before for current, the switch in the 10A position, and hook from a battery plus......one meter lead..........out other meter lead........to a tail lamp.........back to battery negative. You should be able to read the lamp current