1954 ford under dash interior light stays on

[Rick]

Interior light stays on with doors shut. Door switches check out with continuity
test. Have continuity with button out and none with button in. Any thoughts

[tubman]

I hope this isn't a dumb suggestion. Have you tried turning it off by turning the headlight switch CW?

[Rick]

yes

[Tony, NY]

With the door open, push the button in. If the lights go out, the door isn't pushing it in far enough.

[TJ]

As I recall those lights have a constant hot wire to them. How old is your wiring? Sounds like a wire is going to ground.

[Rick]

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I agree. The sockets are hot. Checked wiring and looks good. Pulled apart door buttons and they also look good and work testing on bench. They are intermittent. If I disconnect them the light s will stay on. Reconnect and the lights work for a while then can go back on. Does the door buttons ground when in or out. I looks like they ground when out. Don't understand how a ground is working

[TJ]

Originally Posted by Rick

I agree. The sockets are hot. Checked wiring and looks good. Pulled apart door buttons and they also look good and work testing on bench. They are intermittent. If I disconnect them the light s will stay on. Reconnect and the lights work for a while then can go back on. Does the door buttons ground when in or out. I looks like they ground when out. Don't understand how a ground is working

When out they complete the circuit. I suspect you have a bad door button switch.