CM2150 Electronic Control System – 019-361   Component Connector and Pin Inspection

The following inspection procedures should be used for any component, connector, or harness connector to ensure there is no pin damage.

When disconnecting connectors during troubleshooting, always inspect the pins to make sure they are not the cause of a bad connection. The things to look for are bent, corroded, and pushed back pins.

Moisture in a connector can also cause system performance issues. Many times it is difficult to see moisture in a connector. If moisture is suspected, the connector must be dried by applying contact cleaner, Part No. 3824510, to the connector. A heat gun can also be used on a low heat setting so that it will not damage the connector or wires.

NOTE: Do not blow compressed air in the ECM ports or connector. Compressed air can contain moisture due to condensation.

Inspect the male terminals of the connector. If any of the terminals are bent, so that they will not easily mate with the other side of the connector, or if the male terminals are expanded, that is, bulged out or squashed so as to make them too large to mate with the other side of the connector, then the pin must be replaced. Refer to the repair section for the specific connector in question.

Inspect both the male and female terminals for corrosion, which can cause a poor electrical connection within the connector. If any corrosion is evident on the pins, then the corroded pins must be replaced. Refer to the repair section for the specific connector in question.

Inspect both the male and female terminals for pins that can not be making contact because they are pushed back in the connector. To repair, push the pin into the connector body from the back of the connector. Make sure the terminal locks into place. If the terminal will not lock into place, then replace it. Refer to the repair section for the specific connector in question.