Some vehicles may have a shutdown-override
switch, which may be used to momentarily override
the shutdown sequence. See
Chapter 10 for detailed
information regarding the shutdown process.
IMPORTANT: Do not attempt to restart the en-
gine while the vehicle is moving. Bring the ve-
hicle to a safe stop, then restart the engine.
To restart the engine, turn the ignition to OFF, leave
it there a few seconds, then turn the ignition to
START. The engine will run for a short period and
shut down again if the condition does not improve.
Standard Instruments
Standard instruments are present on every vehicle.
They are listed here in alphabetical order, to make
the information easier to find.
Some gauges have an LED warning light that indi-
cates when values have exceeded their preset mini-
mum or maximum values.
Gauges with a warning light include:
•
engine coolant temperature;
•
engine oil pressure;
•
fuel and DEF level;
•
transmission fluid temperature;
•
voltmeter.
Coolant Temperature Gauge
NOTICE
A sudden increase in coolant temperature may
indicate engine or cooling system failure. Bring
the vehicle to a safe stop and investigate the
cause to prevent further damage. Do not operate
the engine until the cause has been determined
and corrected.
During normal engine operation, the coolant tem-
perature gauge should read between 175 and 195°F
(79 and 91°C). If the temperature remains below
160°F (71°C) or exceeds the maximum temperature
shown in
Table 4.2, inspect the cooling system to
determine the cause.
Maximum Coolant Temperature
Engine Make Temperature: °F (°C)
Cummins 225 (107)
f080156
EXHAUST AFTERTREATMENT SYSTEM INFORMATION
Switch.
Level 1 Level 3Level 2 Level 4
Filter Regeneration
Recommended.
Filter is reaching
Bring vehicle to
highway speeds to
Filter
Regeneration
Filter is now
reaching maximum
capacity
.
To avoid engine
derate, bring vehicle
Parked Regeneration
Required − Engine
Derate
Filter has reached
maximum capacity
.
Vehicle must be
parked, and a Parked
Service Regeneration Required.
Engine Derate To Idle Only.
Filter has exceeded maximum
capacity.
Vehicle must be parked, and a
Service Regeneration must be
(Solid)
(Flashing) (Flashing)
CHECK
INDICATOR
LAMP(S)
Indicator Lamp
Message(s)
Diesel Particulate
Filter Condition
Required Action
capacity
.
STOP
allow for an
Automatic
Regeneration or
perform a Parked
to highway speeds
to allow for an
Automatic
Regeneration, or
perform a Parked
Regeneration as
soon as possible.
Regeneration must
be performed.
Engine will begin
derate.
performed. Check engine
operator’s manual for details.
Engine will shut down.
For a driver performed Parked Regeneration, vehicle must be equipped with a dash mounted Regeneration Switch.
02/20/2009
W
ARNING
HEST (High Exhaust
System Temperature)
Exhaust components
and exhaust gas are at
high temperature. When
stationary, keep away
from people and
flammable materials or
vapors.
A regeneration is in
progress.
Flashing
Solid
Regeneration.
Necessary
Fig. 4.4, ATS Warning Lamps
Instruments
4.8