2.3 & 2.4 LITER. auto trans. A module in a vehicle used to monitor and control many components of the vehicle's engine management system. Listing is for remanufactured part. Contact dealer for core exchange information. ECC. Engine Control Computer. Engine Control Module (ECM). Engine Control Unit (ECU). General Purpose Embedded Control Unit. MODULE Assembly, PWRT Control (REMAN). PCM. Powertrain Control Module. REMANUFACTURED MODULE.