PIN 2519904 - Caterpillar

Some minor seal abrasion on connector seals is normal. 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 repaired. If the source of the moisture entry is not repaired, the problem will recur. Simply drying the connector will not fix the problem. Check the following items for the possible moisture entry path:
Missing seals
Improperly installed seals
Nicks in exposed insulation
Improperly mated connectorsMoisture can also travel to a connector through the wire. If moisture is found in a connector, thoroughly check the connectors harness for damage. Also check other connectors that share the harness for moisture.Check the Wires for Damage to the Insulation
Carefully inspect each wire for signs of abrasion, of nicks, and of cuts. Inspect the wires for the following conditions:
Exposed insulation
Rubbing of a wire against the chassis
Rubbing of a wire against a sharp point
Table 2
Troubleshooting Test Steps Values Results
1. Check All Wiring Harness Fasteners
A. Check all the fasteners to verify that the harness is secure and is NOT compressed.
B. Pull back the harness sleeves to check for a flattened portion of wire. (A fastener that has been overtightened will flatten the harness.)
The wires are free of abrasion, of nicks, and of cuts and the harness is properly clamped. OK - The harness has passed all checks.
Proceed to "Inspect the Connector Terminals".
NOT OK - There is damage to the harness.
Repair: Repair the wires or replace the wires, as required. Verify