My cruise control isn't working should I get continuity when I push the button

What is your question?

I ohmed out the switch at the 4 pin connector just behind steering wheel with the switch in the on position I get continuity on two of the pins when I push the button I get no continuity on the other two pins can I assume this is a bad switch.also I did just installed new LED tailights thanks for your help in advance

How long has your 2003 GMC Sierra 2500 HD had this problem?

Just since installed the new LED brake/tail lights