how to check a h4 light bulb with an ohm meter

greetings, fellows..
just realized today while driving on the road and one of my h4 light bulbs doesn't work in Low beam, but okay in High.
so i just pulled it out and didn't bother much to check my car wiring, because it is too dark to see anything right now.

for some reason i have an ohm meter in my house so i tried to play with it.
so....where do i check for continuity? there are 3 terminals at the end. i believe that the housing itself is grounded to car.

i had one lead of the meter on the housing, and the other touching 3 terminals-- one at a time, but shows no continuity!! howcome? the High works, but not the Low.???

peace,

One of the leads will be common to both high and low. Should be able to see connections and if filament is broken,

it seems your bulb has a case of Blown-Filamentous Low-Beamous.... put it out of its misery and buy a new bulb.. (the low beam filament is blown, replace the bulb)