how to check for codes?

[VolsFan]

Hi, going to look at a 3rd gen, I dont have a scanner for them yet. I printed off the code list, how do I do the key trick to show codes in the gauge cluster? I did a search and couldnt find anything, remember someone saying that you could turn the key 3 times or something?

 

[Prairie Dog]

Turn the ign on-off-on-off-on within 5 seconds.

Why do we have two threads for this