Gen 5 DD Platform Operators Manual can range from warning panel indicators to automatic reduction in engine power followed by automatic engine shutdown. The DDEC ® system activates an instrument panel indicator to provide a visual warning of a system malfunction or operating status. The DDEC ® system has the ability to perform diagnostics for self-checks and continuous monitoring of system components. Cruise Control For added driver convenience and comfort, DDEC® features a cruise control option. It can be operated in any gear above 1100 rpm or road speed faster than 32 kph (20 mph), up to the rated engine speed.
It can also be programmed to hold the road speed at or below the maximum vehicle speed. For information on operating the cruise control, Refer to section "How to Operate the Cruise Control and Fast Idle". Data Recording The DDEC ® has the ability to extract detailed data on vehicle use and performance using DDEC ® Reports software. This detailed data (or DDEC ® Data) is stored in the CPC and contains information on performance such as fuel economy, idle time, and time in top gear. Critical incidents such as detailed diagnostic data records and hard braking events are also stored. DDEC ® Data can be downloaded using DDEC ® Reports software to produce reports.
DDEC ® Protection System The DDEC ® protection system monitors all sensors, electronic components, and recognizes system malfunctions. If a critical fault is detected, a warning indicator will illuminate. The malfunction codes are logged into the control unit's memory. This system has a stepped-power shutdown sequence and an immediate speed reduction without shutdown feature, either of which can be triggered by a major engine malfunction, such as low oil pressure, high coolant temperature, or low coolant level. Engines equipped with the power down/shutdown option have a Stop Engine Override to allow engine operation for a short period of time.
Extending the engine run time during an engine shutdown can cause equipment damage. Engine Brake The engine brake is enabled by a cab mounted ON/OFF control with an intensity selection to select (HI/MED/LO) braking power. For more information on engine brakes Refer to section "Engine Brake System". For information on how to operate the engine brakes, Refer to section "How to Operate the Engine Brakes". All information subject to change without notice. 39 DDC-SVC-MAN-0217 Copyright © 2022 DETROIT DIESEL CORPORATION