[roadog1aj]

Well, I've searched and searched, but cannot find any instructions for pulling the service engine codes on my 06 STS4. I tried using my scan tool, but it keeps saying "communication error". Not sure if the fact that I cannot do like most cars with a key...."Turn Key on, but not start" (Key FOB only allows for Accessory, or Start. The "Service Engine" light stays on (does not blink/flash) so I believe it is emissions related, but would like to pull the codes and see what's up. Does anyone know how what steps to take to pull the codes?