Dome lights not turning off just dimming

[Ls_Obs96]

The dome lights in my 1996 Chevy work and I understand they workin on a ground system but I don’t know what it could be the door switch’s have been changed the headlight controller has been changed and when I pull the door switch’s out they still stay on sometimes they will turn off without even moving the truck and then turn back on I’m really lost right now

 

[Xombi]

https://www.gmt400.com/threads/dome-light-wiring.53408/. It will give you picture of where the grounds are. There's your dinner. Process of elimination.

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[Ls_Obs96]

Thank u I’ll have to find them to see if any are broke or cut the diagram helps a lot

 

[AK49BWL]

Problem is that's for 88-95. 96 introduces a small module that controls the dome lighting in addition to those switches. The module keeps the lights on up to 25 seconds after closing a door or removing the key from the ignition (tho I think the latter was added in 98+). This module has a relay built in that is known to sometimes be a failure point. The module is stuffed up next to the steering column under the dash.

 

[95burban]

what kind of bulbs do you have?