Which mode allows the technician to access onboard monitoring test results for non-continuous monitors?

The correct answer is Mode 6, which is specifically designed to allow technicians to access the onboard monitoring test results for non-continuous monitors. Non-continuous monitors are systems that cannot run their diagnostic tests continuously under all operating conditions, making Mode 6 essential for retrieving information about their performance during certain driving conditions or test scenarios.

Mode 6 provides access to specific test results from the vehicle's onboard diagnostics (OBD) system, detailing the status and effectiveness of these non-continuous monitors. This is crucial for technicians when diagnosing emissions-related issues, as they can identify whether these monitors have passed, failed, or have not run at all since the last reset. Understanding the results of these tests is critical for determining compliance with emissions standards and for ensuring that the vehicle is operating correctly.

In contrast, other modes serve different purposes, such as providing more general diagnostic information, readiness status, or real-time data, making them less relevant when specifically looking for test results associated with non-continuous monitors.