Navistar International DT 466 Diagnostic/Troubleshooting Manual page 524

520 7 ELECTRONIC CONTROL SYSTEMS DIAGNOSTICS
Cruise control features are enabled as follows:
Cruise ON/OFF button:
SET / CRUISE:
RESUME / ACCEL:
In-Cab PTO
In-Cab PTO has three different modes of operation.
These modes are selected by programming the ECM
In-Cab PTO Mode. These modes are:
• In-Cab Preset
• In-Cab Variable
• In-Cab Mobile
In-Cab Preset
In-Cab Preset is selected by programming the ECM
programmable parameters for In-Cab Mode to In-Cab
Preset. This allows the operator to select one of two
programmed values for engine speed. To operate,
press the ON/OFF switch to the ON position. Then
press either the SET/CRUISE or RESUME/ACCEL
switch. This will cause the engine speed to run at the
value programmed into PTO Set Speed.
Pressing the off switch, brake pedal, clutch pedal,
placing the automatic transmission in gear, or a
signal from the Vehicle Speed Sensor (VSS) (unless
programmed for Mobile operation), will deactivate the
PTO speed control. PTO speed control will not be
functional if the VSS signal is in fault.
In-Cab Variable
In-Cab Variable is selected by programming the
ECM Programmable Parameters for In-Cab Mode to
In-Cab Variable. This option allows the operator to
set the engine speed to a desired value. The control
module will then maintain this speed over varying
load conditions up to the engines rated power in the
selected speed range.
Read all safety instructions in the "Safety Information" section of this manual before doing any procedures.
ON enables and OFF disables the cruise control functions.
If the cruise is enabled but a speed is not set, pressing the SET/CRUISE
switch will select the current vehicle speed as the set speed.
If the cruise is enabled and a speed is set, pressing the SET/CRUISE switch
will cause the vehicle speed to decrease.
If the cruise is enabled, but has been deactivated by applying the brake or
clutch, pressing the RESUME/ACCEL switch will cause the vehicle speed to
resume to the last set speed.
If the cruise is enabled and active, pressing the RESUME/ACCEL switch will
cause the vehicle speed to accelerate.
EGES-270-1
Follow all warnings, cautions, and notes.
© August 2008 Navistar, Inc.
To enable, press the ON/OFF switch to the ON
position. Speed may be adjusted two ways. First
the operator may adjust the engine speed with
the accelerator and then press the SET/CRUISE
switch. Second, the operator may press the
RESUME/ACCEL to
incrementally or press the SET/CRUISE switch
to decrease the engine speed.
Engine set speed will be limited to the value
programmed in the ECM for Maximum PTO speed.
Pressing the OFF switch, brake pedal, clutch pedal,
placing the automatic transmission in gear, or a
signal from the VSS, (unless programmed for Mobile
operation), will deactivate the PTO speed control.
PTO speed control will not be functional if the VSS
signal is in fault.
In-Cab Mobile
In-Cab Mobile is selected by programming the ECM
programmable parameters for the In-Cab mode to
In-Cab Mobile. This allows the operator to use the
engine speed control the same as In-Cab Variable,
however, in this mode the vehicle can be moving
while the mode is active. See In-Cab Variable for
more details. The maximum speed of the vehicle is
programmable up to 20 mph. This mode is the same
as In-Cab Variable, however, a speed signal will
not disable the speed control until the programmed
maximum speed is exceeded.
Remote PTO
Remote PTO can be enabled by two means, Remote
Preset and Remote Variable. Operation of the speed
control depends on which signal is enabled.
increase engine speed