I replaced mine because the key wouldn't turn. While waiting for the new part to ship, I spent several hours trying to get it to turn. Since replacement ( about two years ), it has set the fault about three times. 10 minutes with key on usually works. Spec says you need to cycle through that 2 times. found that once works because my daughter tried it.
GOOFY BRIAN - I did one in an Impala; I had to key-on for 10 minutes / for 3 seconds 3 times WITHOUT trying to start it. I think I found that here in automotiveforums