2003 Chevy Cavalier Cruise Control does not engage

Hello,
I bought this car with 106000 on it, it run great, but the cruise control does not work, I purchased a cruise control module and it still does not work, my speedometer works, the fuse is good, I tested with continuity check, my question is how do I troubleshoot and diagnose the problem I dont have money to take it to a shop, (recently lost job) When I press the engage button on the turn signal switch nothing happens.