I lost your message. Take a multimeter. Put the meter on 20 K ohms. Take the ground wire of the meter and but it on one of the terminals of the low beam light, and the red on the other terminal. If the light is good the meter will show a reading. On a light with three terminals, put the ground on the center terminal, or the top one, and touch the red wire of the meter to both termenals on the light if low and high are good the meter will show a reading If you don't have a meter, take two wires touch one to the ground of the battery, and the other end to the ground of the head light, and do the same for the hot side, the light will burn if good. A two pronk light put the ground on any terminal and the red on the other it will light up if good. Good Luck

unplug the light switch from the dash. Take test light an fined the 12 volt power source. Go to the head light connectors an fined the wire colors that porvide power to the head lights. Take a jumper wire and put one in into the power wire, an the other end into the wire color that powers the light. At the switch. Does the light come on. Than the switch is bad. Take the test light an put the ground end onto the positive post of the battery. Take the pointed end an put it into the ground wire in the head light conector. If the light lights the ground to the head lights are good. Check both side's. If test light does not light you have ground problem Take a multimeter and check for how much voltage you got going to the head light connectors. Should be 8 or above for bright lights.