Accelerating The Vehicle - Detroit Diesel DD15 EuroIV Operator's Manual

Detroit Diesel Electronic Controls (DDEC) System
The engine brake will supply braking power even when in Cruise Control. The
Motor Control Module will control the amount of engine braking with respect to
the Cruise Control set speed. The maximum amount of braking (low, medium,
high) is selected with the dash or steering wheel switches.
Engine Protection
The electronic engine control protection system monitors all engine sensors,
electronic components, and recognizes system malfunctions. If a critical fault is
detected, the AWL (Check Engine) and RSL (Stop Engine) illuminate. The
malfunction codes are logged into the MCM's memory.
The standard parameters which are monitored for engine protection are low coolant
level, high coolant temperature, low oil pressure, and high oil temperature.
WARNING: PERSONAL INJURY
To avoid injury from engine shutdown in an unsafe situation,
ensure the operator knows how to override the stop engine
condition on a DDEC-equipped unit.
NOTICE: Engines equipped with the power down/shutdown option have a
system override button or switch to allow engine operation for a short period
of time. Using the override button so the engine does not shut down in 30
seconds but operates for an extended period may result in engine damage.
This system features a 30-second, stepped-power shutdown sequence, or an
immediate speed reduction without shutdown in the event a major engine
malfunction occurs, such as low oil pressure, high oil or coolant temperature, or
low coolant level.
Idle Shutdown Timer
This feature is an optional 1-80 minute idle shutdown system. Its purpose is to
conserve fuel by eliminating excessive idling and allowing a turbocharger cool-
down period. To activate the shutdown, the transmission must be in neutral with the
vehicle parking brakes set and the engine in idle or fast-idle mode.

Accelerating the Vehicle

Engine response versus pedal movement may feel different from the mechanical-
governed engine you were driving. The Accelerator Pedal (AP) was designed to
communicate 'percentage' foot pedal travel to the engine's Motor Control Module
(MCM). The engine will respond accordingly to the driver's demand.
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All information subject to change without notice.