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 326
TM 9-2320-312-24-2
Troubleshooting Section
Usage of Transmission Style Switches
Set/Resume Switch
The "Transmission Style" parameter determines
With the cruise control on/off switch in the ON
the switches that will be used. The following
position and the vehicle speed within the range
switches can be used with being dependent on the
of the programmed "Low Cruise Control Speed
parameter setting:
Set Limit" and the "High Cruise Control Speed Set
Limit", momentarily pressing the set switch will
clutch pedal position
activate cruise control, and the ECM will maintain
the current speed.
neutral
After a speed has been set and the speed is then
service brake pedal position (switch 1)
disengaged by using the brake, the clutch, the
cruise control pause switch, or the on/off switch,
service brake pedal position (switch 2)
the ECM will seek the previous set speed when the
resume switch is toggled. This assumes that the
vehicle speed is above the "Low Cruise Control
Refer to Table 174 for additional information.
Speed Set Limit" for cruise control or the vehicle
Table 174
speed is below the "Idle/PTO Vehicle Speed Limit"
for the idle and the PTO.
Switch Usage.
Setting For
Service
Service
Transmission
After a speed has been set, pressing and holding
Brake
Brake
Style
the set/resume switch in position will cause the
Neutral
Clutch
Switch
Switch
Parameter
engine to establish a new set speed. The system's
1
2
reaction depends on the programming of the
"Cruise/Idle/PTO Switch Configuration".
"Manual
X
X
Option 1"
When the set/resume switch is momentarily pressed,
"Manual
X
X
X
the cruise set point will change one mph. The
Option 2"
rate of change is dependent on the programmed
"Automatic
"Idle/PTO Bump rpm" when the engine is setting
X
Option 1"
on idle speed.
"Automatic
X
X
Cruise Control Pause Switch
Option 2"
"Automatic
The cruise control pause switch is not a switch
X
X
X
Option 3"
that is wired to an input. The switch position is
broadcast over a J1939 data link. The parameter
"Automatic
X
X
"Cruise Pause Switch" must be programmed to
Option 4"
use a cruise control pause switch. After a speed
"AT/MT/HT
has been set and the speed is then disengaged
X
Option 1"
by using the cruise control pause switch, the ECM
will seek the previous set speed when the resume
"AT/MT/HT
X
X
Option 2"
switch is toggled. This assumes that the vehicle
speed is above the "Low Cruise Control Speed
"AT/MT/HT
X
X
X
Set Limit" for cruise control or the vehicle speed is
Option 3"
below the "Idle/PTO Vehicle Speed Limit" for the
"AT/MT/HT
idle and the PTO.
X
X
Option 4"
Kickout Switches
"Universal
X
X
X
Option"
The brake pedal position switches, the neutral
switch, the cruise control pause switch, and the
If the "Transmission Style" parameter is programmed
clutch pedal position switch are used in the cruise
to one of the following options, the input for the
control mode, the PTO mode, the fast idle mode,
clutch pedal position switch is not used:
and the idle mode to discontinue cruise operation,
PTO operation, fast idle operation, or idle operation.
"Automatic Options 1"
The capability to override the idle shutdown timer is
determined by the "Allow Idle Shutdown Override"
"Automatic Option 2"
parameter setting. The "Allow Idle Shutdown
Override" is a Customer Parameter.
"Automatic Option 3"
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