I disconnected the negative terminal. When I hooked it ba...

Hi! My name is \*\*\*\*\* \*\*\*\*\* I will be able to assist you. I’m sorry that you’re having trouble with your vehicle. Don’t worry though, we’ll be able to figure this out. Please understand that I do not know your knowledge or capabilities so I **may** need to ask questions to find out basic information to help solve your specific problem. Sometimes I have to look up some information so it may take a moment to respond. I appreciate your patience. The system will give you an automated phone call offer to speak to one of us on the phone **. It is optional.** Some folks prefer to talk on the phone. If you don’t, please ignore it as I cannot control the offer from popping up. If you replaced the BCM then it will have to be programmed to the truck but it sounds like you have a problem with the antitheft. After you are sure the BCM has been programmed, first make sure your key fob has a good battery in it. Use the key fob remote to lock and unlock the doors. Turn the ignition on for 30 seconds and it should start. If it doesn't then lock and unlock the driver door with the physical key and turn the ignition on for 30 seconds. If it still doesn't start then there is a problem with the anti theft system and will require a scan tool to find the problem. To determine what the problem is you will need to use a scan tool to read the trouble codes (if any are stored) and also to view the data in the antitheft module to see what inputs / outputs are being recognized by the module. This will determine whether you have a problem with the key, receiver, module, or any other part of the system. Since there are not any common problems for this issue, I can not recommend any specific repair for this fault. If the module has any trouble codes stored let me know what they are and I will be able to pinpoint a specific problem for this issue.