Which term describes the monitor that continuously checks engine-related computer activity while the vehicle is running?

• A. Real-time monitor
• B. Continuous monitor
• C. Intermittent monitor
• D. Passive monitor

Answer: (B)

This term refers to a diagnostic process that runs all the time while the engine is operating, constantly evaluating engine-related data from sensors and the engine control unit in real time to catch issues as they occur. That ongoing, in-operation checking is what makes it a continuous monitor—it’s not limited to specific tests or one-off checks. Some monitors only run under certain conditions or at particular times during operation, which is why those would be described as intermittent or non-continuous. In automotive diagnostics, the continuous monitor is the standard phrase for this kind of ever-present oversight during normal driving, aligning exactly with the description in the question.