What is the first step when using a Digital Multimeter (DMM) to measure continuity?

When using a Digital Multimeter (DMM) to measure continuity, the initial and essential step is to set the function switch to the continuity function. This specific setting allows the multimeter to detect a low-resistance path between its probes, which is critical for confirming connectivity in electrical circuits. The continuity feature typically emits a beep or shows a visual indication when a complete path exists, effectively alerting you to conductive connections.

While it is important to ensure the DMM is functioning properly and that the circuit may be disconnected, these steps come either before or alongside the primary action of selecting the appropriate mode on the device. Calibrating the DMM is generally not a routine requirement for continuity measurement unless specific accuracy checks are needed, so it's not the first step in this context. Thus, setting the DMM to the continuity mode is the crucial first action for this task.