Testing dual radiator fan speeds?

[volgapower]

i deleted my fan clutch, there is a relay on the fan itself, its also dead so the first speed is gone... but not forgotten

so this is the easyest way to get 2nd speed instead of first without A/C

but i have 1 question, i checked on diagnostics and the fan starts to run on 99c degrees.
is that temperature in the engine or temp in the radiator switch?


image upload