Testing For Voltage Drop

Voltage Drop Test:

This test checks for voltage being lost along a wire, or through a connection or switch.
1. Connect the positive lead of a DMM to the end of the wire (or to one side of the connection or switch) which is closer to the Battery.
2. Connect the negative lead to the other end of the wire (or the other side of the connection or switch).
3. Operate the circuit.
4. The DMM will show the difference in voltage between the two points.