1996 Ford Explorer XLT tail lights and side lights wont turn on manually

Yes, my tail lights, dashboard, and signal (side lights) wont turn on when I
turn the  light switch on inside of the car. The only lights that turn when you
turn the inside switch on is the front head lights. The signal lights flash when
you pull the signal arm down and the brake lights work when you press the
brake pedal whether the light switch is fully turned on/off. Now my Explorer
has a automatice feature that you can turn so that all outside lights turn on
when it gets dark. When I turn this feature on inside of the car all the outside
lights work and the dashboard lights up. So that tells me that the fuses must
be ok. So the problem should be the light switch. So I replaced the switch,
but the problem persists. Is their a relay under the hood or fuse that I'm not
seeing, because all lights work when you put the lights on automatic turn on
mode. Funny thing when we had a cold spell for a week all the lights from
the switch worked, then when it warmed back up, they went out again. What
do you check as the culprit for this problem. The first problems I was having
with the switch was just the side lights wouldn't turn on an you had to jiggle
the switch a little to turn them on then only the full lights on option worked,
and now just the front head lights work from the switch.
Any advice what could be the problem or what to check