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hi. so what is the temp at which the fan turns on? Does it go by coolant temp? is it 215F? On idle my I was at 206F after driving but oil at 192F and ATF at 176F. Im using an OBD reader.

i know when the AC turns on so does the fan. Does someone have the protocol to check it? No OBD codes were made. Its has 120K so if I could change a sensor to help that would be great but I'm not sure which one.
 

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Many obdii code readers allow you to see various temperatures at sensors. My ELM327 does. They only cost about $10, and software for phone app is free.
 

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hi. so what is the temp at which the fan turns on? Does it go by coolant temp? is it 215F? On idle my I was at 206F after driving but oil at 192F and ATF at 176F. Im using an OBD reader.

i know when the AC turns on so does the fan. Does someone have the protocol to check it? No OBD codes were made. Its has 120K so if I could change a sensor to help that would be great but I'm not sure which one.
The BCM turns the fans on and off with imput from various sensors.
Coolant temp, ambient air, A/C compressor, vehicle speed, engine RPM, humidity, etc etc.
 
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