Final answer:
The instruction relates to securing a wire harness with a wire retainer, cap screws, and washers in an engineering context, essential for electrical system reliability and safety.
Step-by-step explanation:
The direction given, "Always install the wire retainer over the wire harness (4-way flat connector) using cap screws and washers," pertains to the process of securing electrical connections in a technical or engineering context. This is an important step in ensuring the reliability and safety of the electrical system, especially in automotive applications. The wire retainer helps prevent the wire harness from moving and potentially getting damaged or disconnected. Using cap screws and washers provides a secure fit that can withstand the vibrations and movements typically encountered during vehicle operation.