Gen 5 DD Platform Operators Manual Detroit Diesel Electronic Controls System Detroit Diesel Electronic Controls System All Detroit™ Gen 5 Heavy Duty engines are equipped with an electronic control system called Detroit Diesel Electronic Control® (DDEC®). The DDEC ® system monitors the functions that regulates the Detroit™ powertrain. The following sections will be covered in this chapter:
Detroit Diesel Electronic Control System Operation - Common Powertrain Controller - Motor Control Module - Aftertreatment Control Module - Transmission Control Module - Check Engine Indicator - Stop Engine Indicator - Stop Engine Override - Engine Power Reduction Detroit Diesel Electronic Control System Features - Cruise Control - Data Recording - DDEC ® Protection System - Engine Brake - Idle Shutdown Timer Detroit Diesel Electronic Control System Operation Detroit™ Gen 5 Heavy Duty engines are equipped with Detroit Diesel Electronic Control® (DDEC®) software. This software assures optimal engine performance.
The installation of software upgrades may cause minor changes in features and engine performance. Detroit Diesel Electronic Control System Operation During normal operation the DDEC ® system requires 12 volts to operate. However, in the event of a power supply malfunction, the system will continue to operate at reduced voltage. When this occurs, the Check Engine Indicator will be activated. The engine will only operate at reduced rpm until the battery voltage reaches a point where DDEC ® will no longer function and the engine shuts down. The engine and powertrain operation is monitored and controlled via a series of sensors, electronic valves, solenoids and switches.
The system has three to four control modules; four if equipped with a Detroit Transmission: Common Powertrain Controller (CPC) Motor Control Module (MCM) All information subject to change without notice. 33 DDC-SVC-MAN-0217 Copyright © 2022 DETROIT DIESEL CORPORATION