Detroit Diesel 60 Operator's Manual page 48

DDEC V ENGINE DRIVING TIPS
Turn the switch ON to energize the
system. Remember as a check after
each engine start, DDEC looks for a
one time activation of the clutch (if
equipped) and service brake before
DDEC allows Cruise Control to be
enabled.
The ECU must also see or recognize
that the Cruise Enable Switch has
changed. If the Cruise Enable Switch
is OFF it needs to be turned ON. If the
Cruise Enable Switch is left in the ON
position at key OFF, the switch must
be cycled OFF then ON for DDEC
V to see a status change to allow
Cruise Control activation. The status
of DDEC V inputs to activate Cruise
Control at key ON is listed in Table 1.
Once Cruise Control is enabled
and you reach your road speed,
press the Set Switch to activate
Cruise Control. The cruise light
will come on. To increase road
Input
Service Brake Switch
Clutch Release Switch
(Manual Trans only)
Cruise Control Enable
Switch
Table 1 Input Status to Activate Cruise Control
36
DDC-SVC-MAN-0039
speed in one mile-per-hour (1.6
kilometer-per-hour) increments,
press the Resume/Accel Switch. To
reduce road speed, press and hold the
Set/Coast Switch until the lower speed
is reached.
Cruise Control is deactivated by
slightly pressing the service brakes,
clutch pedal, or trailer brake. The
On/Off Switch will also deactivate
Cruise Control.
Cruise Control will maintain vehicle
speed even on up grades, unless power
requirements demand a downshift.
And, of course, Cruise Control does
not limit your speed on down grades.
Most likely, Cruise Control will feel
stronger than driving with the foot
pedal because of the instantaneous
and wide-open throttle response.
That's why Cruise Control use is not
suggested during slippery driving
conditions.
Status of Input at
Key ON
ON
ON
OFF
Copyright © 2009 DETROIT DIESEL CORPORATION
Status of Input
Before Cruise
Control Activates
OFF
OFF
ON
All information subject to change without notice.