Nissan Sentra ECM replacement

i am supposed to pick up the part tomorrow at the dealership. I hope it all goes well. When I see the new part, I’ll know if i’m taking out the correct old part. it may be on the firewall- under the hood, or, possibly under the passenger side of the dashboard, on the american model- according to the Chilton’s book. I hope it is not just an ECM FUSE. wish me luck. either way,

I WILL LET YOU KNOW WHAT I LEARN and IF WE ARE SUCCESSFUL. Thank You.

Anyone with similar problems on the 2000-2004 nissan SE-R, “R” model is welcome to ask any questions on this issue. Thank you for reading, and I hope you learn something from our experiences.