Missing 3rd on 904 trans

I need to hook my old tach up. I bought a Amazon special tach because it had a shift light and it's already took a crap after about 100 miles. I was actually wondering if it was in third on the way to work tonight. I was cruising at about 60-65 and the motor wasn't wound out at all. The thing is if I try to manually shift from 1-2 nothing happens then from 2-D I get a shift. I'll definitely hook the kickdown cable back up tomorrow though.