Can moisture on the PCM connectors cause instrument panel failures?

I am new here. I just recently bought a 2005 Dodge Ram 1500 Quad Cab
with the 5.7.
On Feb 27th, I was driving it and looked at the Instrument Cluster and I
noticed the Gear Selector was not lit. I pulled over and started looking into
it. When you turn the ignition on the check engine lights, etc. should light
up. However, none of the informational or warning lights come on. The turn
signal indicators do not come on (turn signals flash outside), the odometer
and gear select indicator, check engine light and high beam indicator do
not come on. All interior lights work fine The dash lights up when you turn
the lights on, the gauges all light up. All external lights work (except 1 fog
light and 1 license plate light).

I have pulled fuses and looked for loose connections,etc. I am stumped.

After 3 days, the lights started working again. Today, they went out again.

Something I noticed was that both times they ave gone out, it was either
raining heavily or had rained the day before.

Any ideas?