You need to disconnect the electrical harness connector for the circuit being tested, if necessary, enable the circuit and/or system being tested, select the V (AC) or V (DC) position on the DMM, and connect the negative lead of the DMM to a good ground and the positive lead of the DMM to the point of the circuit to be tested. The DMM displays the voltage measured at that point.
By BobGM Specialist
01/11/2022