What is the first step when using a digital multimeter (DMM) to measure continuity?

The first step when using a digital multimeter (DMM) to measure continuity is to set the function switch to the continuity function. This is essential because the continuity function allows the multimeter to emit a tone or display a reading only when there is a complete electrical path in the circuit being tested. By selecting this specific function, the multimeter prepares itself to effectively detect low resistance and ensure that the circuit is continuous.

While connecting the leads to the circuit is a necessary action, it should occur after the correct function is selected. Simply turning on the DMM is not enough; the device must also be configured for continuity testing to ensure that it operates in the right mode. Checking the battery level, although important for ensuring that the DMM functions correctly, is not specific to the continuity measurement process itself and is generally a preliminary step when preparing the multimeter for any measurements rather than for continuity specifically.