Engine Diagnostics - Perkins 1106E Operation And Maintenance Manual

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Operation Section

Engine Diagnostics

Engine Diagnostics
Self-Diagnostics
Perkins Electronic Engines have the capability to
perform a self-diagnostics test. When the system
detects an active problem, a diagnostic lamp
is activated. Diagnostic codes will be stored in
permanent memory in the Electronic Control Module
(ECM). The diagnostic codes can be retrieved
by using the electronic service tool. Refer to
Troubleshooting Guide, "Electronic Service Tools" for
further information.
Some installations have electronic displays that
provide direct readouts of the engine diagnostic
codes. Refer to the manual that is provided
by the OEM for more information on retrieving
engine diagnostic codes. Alternatively refer to the
Troubleshooting Guide, "Indicator Lamps" for further
information.
Active codes represent problems that currently exist.
These problems should be investigated first.
Logged codes represent the following items:
•
Intermittent problems
•
Recorded events
•
Performance history
The problems may have been repaired since the
logging of the code. These codes do not indicate that
a repair is needed. The codes are guides or signals
when a situation exists. Codes may be helpful to
troubleshoot problems.
When the problems have been corrected, the
corresponding logged fault codes should be cleared.
Diagnostic Lamp
A diagnostic lamp is used to indicate the existence
of an active fault. Refer to the Troubleshooting
Guide, "Indicator Lamps" for more information. A fault
diagnostic code will remain active until the problem
is repaired. The diagnostic code may be retrieved
by using the electronic service tool. Refer to the
Troubleshooting Guide, "Electronic Service Tools"
for more information.
This document has been printed from SPI². Not for Resale
Fault Logging
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The system provides the capability of Fault Logging.
When the Electronic Control Module (ECM)
generates an active diagnostic code, the code will
be logged in the memory of the ECM. The codes
that have been logged by the ECM can be identified
by the electronic service tool. The active codes that
have been logged will be cleared when the fault
has been rectified or the fault is no longer active.
The following logged faults can not be cleared from
the memory of the ECM without using a factory
password: Overspeed, low engine oil pressure, and
high engine coolant temperature.
Engine Operation with Active
Diagnostic Codes
If a diagnostic lamp illuminates during normal engine
operation, the system has identified a situation that is
not within the specification. Use the electronic service
tool to check the active diagnostic codes.
The active diagnostic code should be investigated.
The cause of the problem should be corrected as
soon as possible. If the cause of the active diagnostic
code is repaired and there is only one active
diagnostic code, the diagnostic lamp will turn off.
Operation of the engine and performance of the
engine can be limited as a result of the active
diagnostic code that is generated. Acceleration rates
may be significantly slower and power outputs may be
automatically reduced. Refer to the Troubleshooting
Guide, "Troubleshooting with a Diagnostic Code" for
more information on the relationship between each
active diagnostic code and the possible effect on
engine performance.
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