Dryer Door Switch Continuity Test

I have a dryer that wont start. Testing continuity on dryer door first…shows close to zero when touch leads together. Then 12ohm, 7ohm, 4.2, 6.0 when I test switch… IS IT BAD? DUNNO. When I short the two wires from the switch the dryer starts up one time then stops and won’t start again. Is the switch bad, or perhaps something else? MUCH OBLIGED GURUS.