Radiator fan problems

[ELo2017]

I have a 17 Silverado and the radiator fan was constantly running and wouldn't turn off until a good 5 minutes after shuttingof the truck. Through researching online, I found the problem was either the coolant temperature sensor the thermostat. I started by doing the thermostat (should've just did both at the same time) and the fan continued to run. I located the sensor and had planned to install it after work when my fan stopped working before I had a chance. Didn't wanna risk overheating so I had it towed. Installed the sensor and the fan won't kick on. My question is this...I had planned on replacing the fan relay as I figured it blew from the fan running too much and when I checked the fuse box, the relay and fuse where not present. Is this fan supposed to run without a relay and/or fuse? I'm hoping the fan itself didn't burn out because of no relay/fuse. Any help or advice would be greatly appreciated!

[rav3]

Did you disconnect the battery to reset ECU?

 

[ELo2017]

@rav3letting my truck cool down and gonna do it right now. Is it just ground on battery or hot as well? Video just showed ground. Thanks btw for sending!

[rav3]

I don't know other than what the video showed. I know on BMWs, some would remove both cables & actually touch them together (after removed from battery) to drain any residual. Don't think that's needed in your case but others may know more on this.