What tool should be used to test a remote mounted starter relay?

Using an ohm meter to test a remote mounted starter relay is appropriate because this tool measures resistance, allowing you to determine if the relay's contacts are functioning properly. A starter relay typically has a coil that creates a magnetic field when energized and contacts that close to allow current to flow to the starter motor.

By measuring the resistance across the relay's contacts when it is de-energized, you can assess whether the contacts have continuity, indicating they are in good condition. If the relay is energized and its contacts are closed, measuring resistance should ideally show a low value close to zero, while an open circuit indicates a problem.

An ohm meter is well-suited for this kind of test because it can provide specific readings that indicate the relay's health and functionality without needing to power the system.

In comparison, a digital multimeter can also measure resistance and potentially perform the same task, but it is more versatile and used for various electrical measurements. An oscilloscope is not typically used for testing relays; it is better suited for analyzing the shape of electrical signals. A voltage tester, while useful for determining if voltage is present, does not provide information about the internal condition of the relay itself.