14 KENR6933
Troubleshooting Section
Operation of the I ndi cator Lamps
Table 4
Warning
Lamp
(Alert
Lamp)
Shutdown
Lamp
(Action
Lamp)
Lamp State Description of the Indication Engine State
On On
Lamp Check
When the keyswitch is switched on, the lamps
come on for a period of 2 seconds and the lamps
will then go off.
The keyswitch is on but the
engine has not yet been
cranked.
Off Off
No Faults With the engine in operation, there are no active
warnings, diagnostic codes or event codes.
The engine is operating with
no detected faults.
On Off
Active
Diagnostic
If the warning lamp comes on during engine
operation, this indicates that an active diagnostic
code (an elec
trical fault) is present.
The engine i s operating
normally but there is one or
more faults with the electronic
management system for the
engine.
On
Flashing
Derate
(A derate is
caused by
certain active
codes.)
If the warni
ng lamp comes on and the shutdown
lamp flashes during engine operation, this
indicates that an active diagnostic code (an
electrical
fault) is present. The diagnostic is
sufficiently serious in order to cause an engine
derate.
The engine is operating but
there is one or more active
diagnostic codes that have
initiated an engine derate.
Flashing
Off
Warning
(Warning
only)
When the warning lamp flashes during operation
of the engine, the lamp indicates that one or more
of the warning values for the engine protection
strategy has been exceeded. However, the value
has not been exceeded to a level that will cause a
derate or a shutdown.
The engine
is operating
normally. However, there is
one or more of the monitored
engine par
ameters that are
outside of the range that is
acceptable.
Flashing Flashing
Derate
(Warning and
Derate)
If both the warning lamp and shutdown lamp flash
during operation of the engine, the lamps indicate
that one or more of the values for the engine
protection strategy have been exceeded beyond
the level that will cause an engine derate.
The engine is operating.
However, one or more of the
monitored engine parameters
is outside of the acceptable
range. The acceptable range
has been exceeded to a level
which requires a warning and
an engine derate.
On On
Engine
Shutdown
If both the warning lamp and the shutdown lamp
come on during engine operation, this indicates
one of the following conditions.
1. One or more of the shutdown values for the
engine protection strategy has been exceeded.
2. A serious active diagnostic code has been
detected.
After a short period of time, the engine will shut
down.
The engine is either shutdown
or an engine shutdown is
imminent. One or more
monitored engine parameters
have exceeded the limit for an
engine shutdown. This pattern
of lamps can be caused by
the detection of a serious
active diagnostic code.
Flash Co des
The “Flash Code” feature is used to flash the code
of all active diagnostic codes and logged diagnostic
codes.
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