SC Interior lights

THUMPER SC

Registered User
I have an 1989 T-Bird SC. For some reason I lost the interior lights when the doors are open and also the warning indicator buzzer when the key is on the ignition, the elctric mirror swtches will not work either. If I turn the dimmer switch on whith the doors opened the mirrors work and the buzzers will work as well if I close the door then everything quits working??? I checked the door switches and they work OK. Is there a relay somewhere or a ground I should look for. I also replaced the light switch thinking that was my problem.
Do you Guys have any advise?:confused:
 
Last edited:
Check carefully the wiring into the door where it goes INTO the door.

After that, check all grounds.

RwP
 
I would look at replacing the dimmer switch and the ignition switch.....

A bad ignition switch can cause all sorts of weird problems.....:rolleyes:
 
I am having the exact same problem.

I replaced the fuse, and had some luck for a few days, but as time went on the chime became more faint, and the lights dimmed until nothing at all again. Not sure what kind of short causes a "Brown" out effect.

So replacing the fuse does work but only for a short period of time.
 
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