How to Check Enlarged Contact Spring of Terminal

An enlarged contact spring of a terminal may create intermittent signals in the circuit.
If the intermittent open circuit occurs, follow the procedure below to inspect for open wires and enlarged contact spring of female terminal.




1. Assemble a male terminal and approx. 10 cm (3.9 in) of wire.
Use a male terminal which matches the female terminal.
2. Disconnect the suspected faulty connector and hold it terminal side up.




3. While holding the wire of the male terminal, try to insert the male terminal into the female terminal.
Do not force the male terminal into the female terminal with your hands.




4. While moving the connector, check whether the male terminal can be easily inserted or not.




If the male terminal can be easily inserted into the female terminal, replace the female terminal.