Fan stuck on After smart box replace

[Tato]

Hi guys, I finally managed to recover a working smart box, I mounted it and the humvee started up, but the cooling fan now stays on all the time, will I have to change the temperature sensor? The never ending story....🥲

 

[Mogman]

The very first section is the troubleshooting for the fan, it could be electrical and or the clutch is simply stuck

 

[Tato]

Found it! TDM connector loose, thank you!