There will be a short video coming soon, sorry. In the mean time I can tell you how to check it. With the car off, open the hood and open the inverter coolant reservier. It's the small container to the left of the inverter (the big silver box on the driver side) that has a black cap. With it open go and turn the car on (Make it READY). Look inside of the coolant reservior and check for sloshing or terbulence in the fluid. If it's moving around the pump is working. If it's still then the pump is not working. That's it!