Perkins NJ Series Troubleshooting Manual page 15

SENR9982-01
Operation of the Indicator Lamps
Table 4
Warning Shutdown
Lamp Lamp
(Alert (Action
Lamp) Lamp)
On On
Off Off
On Off
On Flashing
Flashing Off
Flashing Flashing
On On
Flash Codes
The "Flash Code" feature is used to flash the code
of all active diagnostic codes and logged diagnostic
codes.
Lamp State Description of the Indication
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.
No Faults With the engine in operation, there are no active
warnings, diagnostic codes or event codes.
Active If the warning lamp comes on during engine
Diagnostic operation, this indicates that an active diagnostic
code (an electrical fault) is present.
Derate If the warning lamp comes on and the shutdown
(A derate is lamp flashes during engine operation, this
caused by indicates that an active diagnostic code (an
certain active electrical fault) is present. The diagnostic is
codes.) sufficiently serious in order to cause an engine
derate.
Warning When the warning lamp flashes during operation
(Warning of the engine, the lamp indicates that one or more
only) 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.
Derate If both the warning lamp and shutdown lamp flash
(Warning and during operation of the engine, the lamps indicate
Derate) that one or more of the values for the engine
protection strategy have been exceeded beyond
the level that will cause an engine derate.
Engine If both the warning lamp and the shutdown lamp
Shutdown 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.
Troubleshooting Section
Engine State
The keyswitch is on but the
engine has not yet been
cranked.
The engine is operating with
no detected faults.
The engine is operating
normally but there is one or
more faults with the electronic
management system for the
engine.
The engine is operating but
there is one or more active
diagnostic codes that have
initiated an engine derate.
The engine is operating
normally. However, there is
one or more of the monitored
engine parameters that are
outside of the range that is
acceptable.
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.
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.
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