dome light will not come on with door or switch, has voltage at light bulb good

Tried new bulb, did not try and replace switch, the light will not come on with the door switch nor the dimmer/dome switch. and thanks for the help

The car does not have electric door locks, manual locks, manual windows. The dash light dimmer will not turn on the light, when any door is open the "open door" indicator light is activated, so I know those switches are working. So you say the dome lamp is controled directly from the door switch. so do the door switches go through the dimmer switch, then to the lamp. I popped out the dimmer switch, and looked inside, there appeared to be a plug further in with the same color wires as the dome light. and thanks for the help

my mechanic said it could be the light switch that's not turning it on or off.I'm having the same problem. did you fix yours?