Car Overheating -- troubleshooting cooling fan

ok, I now what know the ohms sign is, I have that on my multimeter-----------Ω – ohm’s symbol

Ok, I tested the connector by placing the positive inside the connector going to fan and grounding it. That’s just a voltage check, right?

Which connectors do I need to put which side in to test the circuit? (Also should I do this with the car on accessories II?)