if you are using electronic trannies,then they wont pass current if the bulbs are blown,you will get a reading at the mains end,light circuits are very simple,
and remember,do not touch the bulbs with your fingers,as you will leave a grease spot that will cause the bulb to blow.check the mains input to your trannies,if your getting 240v then,the bulbs are blown,or your trannies are shot
gts
September 2010