A wire is working properly when it has continuity. A multimeter can be used to test a wire for continuity.
- Turn on your multimeter. The multimeter should read 1.
- Set your multimeter to the test continuity setting.
- Place both ends of the multimeter leads on each end of the wire.
- If the multimeter changes from 1 to 0, the wire has continuity.
- If the multimeter does not change from 1 to 0, the wire does not have continuity.