The terminal insertion error prevention design of the connector, the connector terminal jack should be designed with a limited slot, the terminal can only be inserted in the correct direction, and can be locked after insertion. The hole terminal specifications of the composite connector are significantly different, and the terminal insertion is correct. The terminal holes and detection holes of the connector are differentiated, and the terminals are prohibited from passing through the detection holes.
The color of the male and female connectors between the wiring harnesses should be consistent, and the male and female connectors with CPA function are preferred. Connectors with the same outlet at adjacent positions, in addition to color differences, structural differences, and male and female connectors, should also be designed with different branch lengths for error-proof design or design different sheath outlet directions.
When selecting the material of the door wiring harness, the door wiring harness and the body wiring harness are docked connectors. It is best to use a connector with a locking mechanism to ensure that the docking looseness is avoided during frequent opening and closing of the door. The door rubber parts should be embossed and branded “L or R” to distinguish between left and right.