Why doesn't my car want to make turns when the weather is bad? My steering locks on 2000 Toyota Camry

When I go through puddles or snow/slush and then try to make a turn my steering wheel tightens up and will not make the turn. Anyone know the reason why my car may be doing this? Power steering fluid level is fine..

Asked by for the 2000 Toyota Camry
Maybe you are missing the fender liner or side splash shield , allowing water /slush to get up on the p/s belt?