Perkins 1106D Troubleshooting Manual page 118

118
Troubleshooting Section
Illustration 28
Diagram for the installation of a connector plug (typical example)
(1) ECM connector
(2) Correctly inserted plug
(3) Incorrectly inserted plug
B. Ensure that the sealing plugs are in place. If
any of the plugs are missing, replace the plug.
Ensure that the plugs are inserted correctly into
the connector. Refer to Illustration 28.
Illustration 29
Seal for a three-pin connector (typical example)
This document is printed from SPI². Not for RESALE
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Illustration 30
Seal for ECM connector (typical example)
C. Disconnect the suspect connector and inspect the
connector seal. Ensure that the seal is in good
condition. If necessary, replace the connector.
D. Thoroughly inspect the connectors for evidence
of moisture entry.
Note: It is normal to see some minor seal abrasion
on connector seals. Minor seal abrasion will not allow
the entry of moisture.
If moisture or corrosion is evident in the connector,
the source of the moisture entry must be found
and the source of the moisture entry must be
repaired. If the source of the moisture entry is not
repaired, the fault will recur. Simply drying the
connector will not fix the fault. Check the following
items for the possible moisture entry path:
• Missing seals
•
Incorrectly installed seals
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•
Nicks in exposed insulation
•
Improperly mated connectors
Moisture can also travel to a connector through the
inside of a wire. If moisture is found in a connector,
thoroughly check the connector harness for
damage. Also check other connectors that share
the harness for moisture.
Note: The ECM is a sealed unit. If moisture is found
in an ECM connector, the ECM is not the source of
the moisture. Do not replace the ECM.
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