Technician A says that experienced technicians should rely on mechanical intuition before resorting to software-driven engine diagnostics. Technician B says that online service information systems can only be accessed after connecting an EST to the chassis data bus. Who is correct?

Question

Quizplus · Accepted Answer

Mechanical intuition can be valuable, but it should complement, not precede, software-driven diagnostics which are crucial for accurate and efficient troubleshooting. Online service information systems can be accessed independently of connecting an Electronic Service Tool (EST) to the chassis data bus; an EST is used for diagnostics and programming, not for accessing service information.

Technician a Says That Experienced Technicians Should Rely on Mechanical