A Buick car burns the radiator and electronic fan fuse for a while. There was also a fault that the coolant temperature was too high. At that time, a roadside shop was found outside to repair it. After inspection by the relevant maintenance personnel, it is found that the fuse on the fuse box on the lower left side of the dashboard is fused. After replacing the new fuse, the fuse will fuse again when the electronic fan runs at high speed. The maintenance personnel check the line has not been abnormal, so the electronic fan motor in the rear of the radiator is found to have a short circuit fault, which causes the fuse to burn up, and then the radiator electronic fan is replaced, but the test fault is still still.