112 ENGINE COMPONENT AND LOCATION Engine Managment System Engine Electronic Control Unit (EECU) W2033364 The engine management system module, also known as the Engine Electronic Control Unit (EECU), is located on the left side of the engine just below the inlet manifold. The EECU is cooled by fuel circulating through a plate attached to the cover of the unit. The fuel comes from the tank on its way to the fuel pump. Algorithms, called maps, are programmed in the EECU so that it can translate sensor data into action.
These maps enable the EECU to receive status information from the sensors and send functional data to the actuators so they can simultaneously assume the proper posture for the safest, most efficient operation of the engine in any given instant. Due to the EECU self-learning capability, it is necessary to reset the learned EECU parameters after servicing some engine-related components. This allows the EECU to learn the new component’s behavior. After servicing is complete, perform the "Learned Data Reset" located in the Function Group 1 menu on the PC tool.