2.0 LITER. auto trans. DIESEL. A module in a vehicle used to monitor and control many components of the vehicle's engine management system. From Chassis/VIN 1K-9-122 266. To Chassis/VIN 1K-9-122 265. ECC. Engine Control Computer. Engine Control Module (ECM). Engine Control Unit (ECU). General Purpose Embedded Control Unit. Powertrain Control Module.