Automatic Transmission Inline 20-Way Connector Description
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Automatic Transmission Inline 20-Way Connector Description
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The transmission electrical connector is an important part of the transmission operating system. Any interference with the electrical connection can cause the transmission to set diagnostic trouble codes or affect proper operation. The following items can affect the electrical connection:
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Bent pins in the connector from rough handling during connection and disconnection
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Wires backing away from the pins or coming uncrimped, in the external wiring harness
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Dirt contamination entering the connector when disconnected
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Transmission fluid leaking into the connector, wicking up into the external wiring harness and degrading the wire insulation
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Moisture intrusion in the connector
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Low pin retention in the external connector from excessive connection and disconnection of the wiring connector assembly
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Pin corrosion from contamination
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Damaged connector assembly
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Remember the following points:
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Limit twisting or wiggling the connector during removal. Bent pins can occur.
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Do not pry the connector off with a screwdriver or other tool.
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Whenever the transmission external wiring connector is disconnected from the internal harness and the engine is operating, DTCs will set. Clear these DTCs after reconnecting the external connector.
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