Paccar PX-9 Operator's Manual - page 24
OPERATING INSTRUCTIONS
Check Engine Lamp
The “Check Engine” lamp illuminates
when the engine needs service at the
first available opportunity.
The “Check Engine” lamp is amber,
and can look like:
•
The words “WARNING” or
“CHECK ENGINE” spelled out.
•
A symbol of an engine, similar to
the graphic illustrated.
The “Check Engine” lamp is located
on the face of the tachometer and
illuminates when a problem exists,
but the vehicle can still be safely
driven. The vehicle should be serviced
to correct the problem, but the
situation should not be considered an
emergency. The “Check Engine” lamp
will activate for several reasons. These
include but are not limited to: Water in
fuel and Diesel Particulate Filter (DPF)
regeneration required.
The “Check Engine” lamp is to flash for
30 seconds at key ON when one of the
following occurs. This flashing function
is referred to as the “maintenance”
lamp. The “maintenance” lamp could
flash for any of the following reasons:
•
Maintenance required (if the
Maintenance Monitor is enabled).
•
Water-in-fuel is detected.
•
Coolant level is low.
Malfunction Indicator Lamp
The “Malfunction Indicator Lamp” (MIL)
illuminates when an engine emissions
failure has occurred. The vehicle
can be safely driven but should be
serviced to correct the problem. The
situation should not be considered an
emergency. In some cases, the MIL
will activate in conjunction with the
“High Exhaust System Temperature,”
DPF and “Diesel Exhaust Fluid” (DEF)
warning lamps.
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Y53-1185-1B1
(12/2014)
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