In the browser, double-click Harness1 to edit the harness. Edit the harness assembly, not the part.
Select Cable and HarnessCreateCreate Wire.
Select the pins on the connectors, as shown in the following image. The identification for the first selected pin is PJ4 Pin 7.
Before you apply the selections, use the Create Wire dialog box to specify Wire ID, Category, Name and other properties for the wire you are currently creating.