Here are two views of the ECM location on a 2005 400. The front tupperware has been removed. You are facing the scoot and the ECM is on the left. The shiny connector is the diagnostics connector.
Date: 06/24/08
Owner: Bruce D. Bateman
Size: 2 items
ECM -wide view
Here is a wider view. Again, you are facing the machine so the ECM is on your left. The shiny connector is the diagnostics connector. Remove the front tupperware to see.
Date: 06/24/08
Views: 32
ECM - close up
Just a closer up view. Make sure that the key is in the OFF position.