Final answer:
Honda earns trust from suppliers during the PDCA cycle's "Do" stage by making improvements to the actual work environment, demonstrating a commitment to quality and efficiency.
Step-by-step explanation:
During the "Do" stage of the Plan-Do-Check-Act (PDCA) cycle, Honda brings about trust from its suppliers primarily by making improvements to the actual work environment. They engage in a continuous improvement process that aligns with the PDCA cycle, which can naturally lead to a better relationship with suppliers. By optimizing the environment in which work is conducted, suppliers can see that Honda values the quality and efficiency of the processes involved, which can build mutual respect and trust.