Hello, I am new to this site and am hoping for some help fixing my neighbors 2000 s430. Yesterday the car overheated and I realized that the engine fan was not coming on at all. It also doesn't come on when the air conditioning is being used. I have no power at the 2 wire connector at the fan motor. (Ground is good) I checked all the fuses and they are good. I am wondering if the fan relay may be bad but I'm not sure where the relay is located. Is there anything else I can check? Any help will be greatly appreciated.

Thanks- Mike