1227747 electric fan control

I'm not sure if this information has been shared or not. I couldn't find it. The 1227747 ecm is not set up to control an electric fan. However, if you are not using an a lock up torque converter, you can use the ground signal from A7 to control the fan relay. See the attached picture for the TCC parameters I changed. Using the TCC - minimum CTC for TCC lock as the fan on temperature is the only parameter you have to experiment with. The only weird thing is the actual temperature that the fan turns on is about 20 degrees C higher than what is in the TCC - minimum CTC for TCC lock is set at. I'm not sure why.