Where is the ecm located on a dodge ram 3500 year 2000 truck?

The ECM is located on the drivers side of the engine block. It is mounted behind the fuel filter housing. It is bolted to the engine block behind the fuel filter. Remove the fuel filter mounting bolts and it will fall out of the way giving access to the ecm. The ecm wiring connector is bolted to the ecm with one bolt, going through the middle of the connector. It is a 4 mm allen bolt.