The engine computer is behind the battery.
The Cummins computer is located on the lower driver side of the block. The Chrysler computer is located on the passenger side of the firewall.
The engine computer (ECM) ( on the driver side of the block ) and the powertrain computer (PCM) ( on the passenger side of the firewall ) are the companion modules.
It is on the pass side front of the engine.
to the right of the master cylinder on the driver's side fire wall
It is on the driver side of the engine.
Lower left side of the block.
Under the hood, right next to the battery on the drivers side.
Driver side of the engine block.
Passenger side of the firewall, behind the air cleaner.
It is in the side of the block behind the starter.
Driver side of the engine blockDriver side of the engine block
Under the dash, blue module to the side of the steering column.