1.8 LITER. from VIN# 3B4154557. to VIN# 3B4154556. A module in a vehicle used to monitor and control many components of the vehicle's engine management system. From Chassis/VIN 3B-4-154 557. From Chassis/VIN 3B-4-180 001. To Chassis/VIN 3B-4-154 556. To Chassis/VIN 3B-4-180 000. CONTOUR. Unit. ECC. Engine Control Computer. Engine Control Module (ECM). Engine Control Unit (ECU). General Purpose Embedded Control Unit. Powertrain Control Module.