• Troubleshooting, “Diagnostic Trouble Codes”
• Troubleshooting, “Event Codes”
Logged Codes
The codes are logged and stored in the ECM
memory. The problem may have been repaired and/
or the problem may no longer exist. If the system is
powered, an active diagnostic code may be
generated whenever a component is disconnected. If
the component is reconnected, the code is no longer
active but the code may become logged.
Logged codes may not indicate that a repair is
needed. The problem may have been temporary.
Logged codes may be useful to help troubleshoot
intermittent problems. Logged codes can also be
used to review the performance of the engine and of
the electronic system.
An additional status screen is available for the
Enhanced Troubleshooting Indicator ETI. The screen
is accessed through the electronic service tool.
i07743139
Electrical Connectors
Connectors for the Electronic Control
Module (ECM)
Illustration 12 g06414748
Locations of the connectors on the engine ECM
(1) P2 ECM connector (harness side)
(2) J2 ECM connector (ECM side)
(3) Engine ECM
(4) J1 ECM connector (ECM side)
(5) P1 ECM connector (harness side)
24 UENR4469-36
Electronic System Overview
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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