Tried to read the tune out of a friend's 04.5 LLY. It got stuck and then popped up a message "bootloader rejected. Reason: controller has returned to normal operation. Please retry the operation." So I waited for the 15 second countdown and everything. Unplugged the cable from the obd2 port. Cycled the key and made sure the truck still started and it did. Turned truck off and tried again. This time it got stuck and gives me a "bootloader rejected. Reason: no response from ecm." Waited the 15 seconds and now the truck is in a no crank/no start condition. I checked all the fuses and didn't find anything blown. Unhooked battery cables for 10 minutes and that didn't help.... I'm at a loss now. Any help is greatly appreciated. Trying to get this thing on the road today. My number is 928-925-3553 if anyone has a quick fix for me. I will check back here every 15 minutes or so. Thanks ahead of time.