The lamps will illuminate for 2 seconds to check that
the lamps are functioning when the keyswitch is
turned to the ON position. If any of the lamps stay
illuminated, or a lamp fails to be illuminated the
reason should be investigated immediately.
Aftertreatment Lamps and gauges
All applications will require the following lamps and
gauges:
• Emission malfunction lamp
• Action indicator lamp
• Gauge for Diesel Exhaust Fluid (DEF)
• Low warning lamp for DEF
• Wait to disconnect lamp (optional)
The wait to disconnect lamp will be illuminated during
engine operation and will be extinguished
approximately 2 minutes after the engine has
stopped. Do not disconnect the battery disconnect
switch during the period the lamp is illuminated. The
diesel exhaust fluid system will be purged during this
time. Also, during the 2 minutes the engine electronic
control module is active storing information from the
engine and aftertreatment sensors.
Note: The wait to disconnect lamp will not be
checked at key on.
i07622830
Monitoring System
(Engine Indicators and
Aftertreatment Indicators)
Engine Indicator Lamps
Note: When in operation the amber warning lamp
has three states, solid, flashing, and fast flashing.
The sequence is to give a visual indication of the
importance of the warning. Some application can
have an audible warning installed.
Ensure that the engine maintenance is carried out at
the correct intervals. A lack of maintenance can
result in illumination of the warning lamp. For the
correct intervals of maintenance, refer to the
Operation and Maintenance Manual, “Maintenance
Interval Schedule”.
46 M0092609-05
Operation Section
Monitoring System
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