463-0620-01 Rev A. June-201522
620 Operation and Troubleshooting Guide
plus
CAN
®
Examples (not exhaustive) of potential Exhaust Emission system display indications and
general definitions are as follow:
The engine particulate filter
is potentially in need of
regeneration.
Regeneration of the emissions
system is active and high
exhaust temperatures are
potential. Engine performance
MAY be affected
Red LED: May be illuminated
alone or in conjunction
with other symbols. May be
flashing.
EXCLAMATION - Black Background
Engine Stop
May be illuminated alone or in
conjunction with other symbols
and/or LED’s
Regeneration of the emissions
system is inhibited due to
activation of the inhibit switch
Information regarding diesel
exhaust fluid (DEF)
Amber LED: May be
illuminated alone or in
conjunction with other symbols.
May be flashing.
EXCLAMATION - Clear Background
Engine Stop
May be illuminated alone or in
conjunction with other symbols
and/or LED’s
REGEN/ INHIBIT Switch Overview
Operation of the REGEN/ INHIBIT switch differs with respect
to engine manufacturer.
However, on single switch systems as shown, the REGEN
side of the rocker switch is engaged (the dwell to hold the
switch differs by manufacturer) to “FORCE” an emission
system regeneration.
The center position of the switch allows the ECU to control
regeneration “Automatically”
When the INHIBIT side of the rock switch is engaged,
regeneration is “INHIBITED”
NOTE: Force Regeneration is available ONLY when allowed
by the engine ECU via display of appropriate symbology (see
engine manufacturer documentation for more information.)
FORCE
REGENERATION
AUTO
REGENERATION
INHIBIT
REGENERATION
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