4 cylinder. A module in a vehicle used to monitor and control many components of the vehicle's engine management system. Calif. Module listing is for remanufactured unit. Module is located behind right side kick panel. 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.