For example, the functional failure of components in the environment of sudden changes in temperature and humidity, including changes in the properties of plastic and metal materials, such as plastic elastic stress changes, surface damage deformation, accelerated aging and metal plating damage and detachment, and corrosion, these changes may cause wiring harnesses Changes in electrical and physical properties of the assembly.

The connector of the wire harness assembly should be matched with the male end. The assembly parts need to be checked for electrical and visual before the test, and placed in an environment with a temperature of 55°C and a relative humidity of not more than 20%, and after standing for 24 hours, Carry out the temperature and humidity cycle endurance test in the order shown in the table below, with a total of 10 cycles, each 24 hours.