To test this, leave your multimeter on the ohms setting and measure the resistance between the switch pins. On a four-pin relay, these are typically labeled 87 and 30.

For all of you who have a multimeter thrown in a drawer or toolbox but don’t know how to use it, these instructions will help in your search for missing voltage.

An essential tool for testing light switches is a continuity tester. You also can use a multimeter by turning the dial to read “continuity.” ...

You can then use the multimeter’s continuity tester along with a scrap piece of wire that stretches between the two switch boxes to determine the two traveler wires.

On the light switch, C would be common, which gets bridged to 1 in switch position 1 (or) common is bridged to 2 if the switch is in position 2. Solution: You could just use a multimeter to test which ...

In this article, I’ll show you how to use a multimeter to troubleshoot some basic electronic components, such as resistors.

Can't you hook up a test light on the positive side of the motor, then the other lead to ground? If the light lights up, you've got power up to the motor.