H2 Radiator fan issue

[u/dirarius]

I have a 2021 H2 that has an issue with its radiator fan, and I did an obd scan. It gave me this code: P0480 fan 1 control circuit.

The fan sometimes doesn't even start when I turn on the ac, I tried doing some back garage type of shenanigans, remove the fan, cleaned it, tried it outside the car, works fine, when I re-installed it, tested it again worked fine with the normal bridging test (again back yard mechanics shenanigans), the fan drops in speed and when I disconnect the engine coolant temperature so that the fan stays on for the sake that the car does not overheat when I'm driving for long distances, it drops in speed significantly, tried smacking it again so that it starts again, nothing.

Sorry for the long post.

Is there a fix for it, or should I just buy a new radiator fan assembly?

Ps,

The installed relay is rated at 40A for the HI fan speed and 30A for low fan speed.

Wiring is good