Vehicle starts does not start with the key, but will start with the remote

My truck doesn't do anything when I turn the key, but my viper remote start works fine. I am stumped. Also, I just had a tune up, starter replace, and a new fuel pump. When I got it back, it worked fine. My repair guy turned it on and off a bunch of times, no problems. I gave it a quick ride including a stop for a soda. It started fine there, and I stopped by my mechanic to tell him it worked good. He turns it off, then on, no start! We tried my remote, started fine. We think the problem is in the steering column, but what? My mechanic is stumped. Thanks for any answers you may have. PS, we have not looked for source of the problem yet.