Handbook 652 Body Electrical Diagnosis Pin Numbering Connector pin numbers are always shown from the mating side of the connector, not the harness side of the connector. If you are backprobing the connector for a voltage check, remember the pin numbering becomes the mirror of what is pictured in the diagram. ( Use the wire color in the wiring diagram to “ double check ” that you are looking at the correct pin.) Pin numbering for connectors with female terminals goes from left to right across each row, beginning at the top row. For connectors with male terminals, the numbering is right to left. NOTE “ Male ” and “ female ” refer to the metal terminals, not the plastic connector shell.
An “ X ” indicates that a terminal cavity is not used. For 1999 model year and earlier vehicles (before the Connector List section was added to the EWD), connector diagrams are found at the end of each system circuit diagram. These diagrams use a dot ( “ • ” ) to indicate cavities that are used by another circuit. Color Coding Connector diagrams also indicate the color of the connector (brown, gray, blue, yellow, etc.). When no color is indicated, the connector is white. 76 Technical Training