Can anyone please tell me where to find the "brain" from my transmission? We were told in the firewall, but cannot find this part. Can anyone give me a brief description of where to look? Thanks!

Should find a large wiring harness that leads you to it on the passenger side of the firewall. Normally mounted in a slot in the firewall and secured with two bolts.

Its next to the battery, your like Air hose going to the air box on top of the throttle body... its not really a hose, but more like a crimped pipe, well its next to the battery on your right... its simple to get to and simple to take off