Matt Stolle

I have a 2015 Silverado 1500 LT 5.3 I bought an after market radiator and cooling fans. Have everything installed. But the cooling fans had to be custom wired. My issue is now the check engine light is on bc the wiring harness is not hooked up to the fans anymore. Is there a way to delete the wiring harness for the fans since they are no longer used? Or is there a way to wire them to the factory wiring I tried to wire them to the factory wires but had no luck so had to use the custom wiring harness. I am new to this just trying to figure things out any help would be appreciated. I still want everything to work that is supposed to just don't know what I can do as far as the check engine light. Thanks anyone that can give me any help