Hi Everyone,
I have a 96 ES300 that I'm having issues with the tail lights on. When
the lights are turned on(like they would be when driving at night),
the only rear lights that come on are the two red tail lights in
corner... the normal red tail lights do not come on. When I brake, all
the brake lights function fine.

I know that the back tail lights are dual fillament bulbs since the
bulbs function as tail/brake lights, and the brake light(1 fillament)
works fine on all four bulbs... but the normal tail light filament
will not turn on at all on any of the four. I replaced all four dual
fillament bulbs and no change... I also verified the fuse(310, 15A) is
good and even swapped it out.

Any ideas? Any thoughts are very much appreciated.

Thanks!