Which screen is used to test systems or troubleshoot problems?

• A. Manual Operation
• B. Status
• C. Diagnostics
• D. Configuration

Answer: (A)

Diagnosing and troubleshooting rely on a screen that runs built-in checks, shows fault codes, and displays system health information. This Diagnostics screen is designed to verify hardware and software status, run test routines, and present clear error messages or logs that help pinpoint where a problem originates. Manual Operation is about controlling the system by hand to perform tasks, which is useful for testing basic functionality but not for diagnosing why something isn’t working. The Status view gives a snapshot of current conditions, but it typically lacks the detailed tests and diagnostic data needed to identify issues. Configuration is for setting up parameters and preferences, not for diagnosing or troubleshooting problems. So, the screen used to test systems or troubleshoot problems is the Diagnostics screen.