Warning and Indicator Lights
CHECK
Check Engine Lamp (amber)
Indicates an undesirable engine condition is detected or
recorded. If the condition gets worse, the stop engine or
engine protection light will illuminate.
STOP
Stop Engine or Engine Protect
Lamp (red)
Indicates a serious fault that requires the engine shut down
immediately. The engine ECU will reduce the maximum
engine torque and speed, and, if the condition does not
improve, will shut down the engine within 30 seconds of the
light illuminating. The driver must safely bring the vehicle to
a stop on the side of the road and shut down the engine as
soon as the red light is seen. If the engine shuts down while
the vehicle is in a hazardous location, the engine can be
restarted after turning the key to the OFF position for a few
seconds.
High Exhaust System Temperature
(HEST) Lamp (amber)
Slow (10-second) flash, indicates a regeneration is in
progress, and the driver is not controlling the engine idle
speed.
Steadily illuminated indicates a regeneration is in progress,
with high exhaust temperatures at the outlet of the tail pipe,
if the speed is below 5 mph (8 km/h). It does not signify the
need for service; it only alerts the vehicle operator of high
exhaust temperatures. See the engine operation manual for
details.
Diesel Particulate Filter (DPF)
Status Lamp (amber)
Steadily illuminated indicates a regeneration is required.
Change to a more challenging duty cycle, such as highway
driving, to raise exhaust temperatures for at least 20
minutes, or perform a parked regeneration. See the engine
operation manual for details.
Blinking indicates that a parked regeneration is required
immediately. An engine derate and shutdown will occur. See
the instructions in the manufacturer’s
engine operation
manual
for instructions to perform a stationary regeneration.
Malfunction Indicator Lamp (MIL)
(amber)
Indicates an engine emissions-related fault, including, but not
limited to the aftertreatment system. See the engine
operation manual for details.
Tractor ABS Lamp (amber)
Indicates a problem with the ABS is detected. Repair the
tractor ABS immediately to ensure full antilock braking
capability.
Trailer ABS Lamp (amber) Indicates a fault is detected with the trailer ABS.
Left-Turn Signal (green)
Flashes on and off whenever the outside turn signal lights
are flashing.
Right-Turn Signal (green)
Flashes on and off whenever the outside turn signal lights
are flashing.
Instruments and Controls Identification
2.2
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