dome light will not come on with door or switch, has voltage at light bulb good on 2004 Toyota Corolla

checked the voltage at the light and has power, i suspect the circut (the ground is not being made) don't know what to check next

by in East Bridgewater, MA on December 15, 2013
2 answers 3 comments
ANSWER by on December 15, 2013
Did you try a new bulb just to be sure? The on/off switch on the dome light itself may be defective, or turned off.
COMMENT by on December 16, 2013
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
ANSWER by on December 15, 2013
The circuit changes depending on whether you have power door locks or not. Without the power door locks the door switches control the lamp directly, with them the lamp is controlled through the integration relay box. Your dash light dimmer control should be able to turn the light on in the high setting with either system.
COMMENT by on December 16, 2013
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
COMMENT by on November 18, 2014
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?