I have what I think is a god ohm meter.

With the plug to the glow plugs removed from the relay, I am measuring all of the leads to the glow plugs buy putting one end of the meter in the individual pins to each glow plug and the other end of the meter to ground. They all read "0" ohms. I thought the correct reading is .6 ohms if all is well. What is happening here?

As soon as I can get my hands on an amp meter I plan to measure the current to each glow plug by going from the battery to the amp meter to each pin in the plug to each glow plug, is this a good diagnostic test?

Seems I have a short some where?

Thanks for any ideas.