Cooling fan wont come on

With AC on fan working
with AC off is the engine overheating
fan comes on only when needed
if engine not overheating assume all function normal
check for codes
check relays and fuses
check engine coolant temperature sender and wiring
located on top front of engine near #1 injector

Here are a couple guides that will help test the system

https://www.2carpros.com/articles/how-to-check-wiring

https://www.2carpros.com/articles/how-to-check-an-electrical-relay-and-wiring-control-circuit

Wiring diagram is attached below

Reference voltage too high, check harness by unplugging from the pcm. For continuity test. If harness is okay have it scanned for codes. B or u codes wont turn on the light.

You are welcome, keep me in the loop!

Here is a link to an article that features written instructions and pictures explaining how to do the scan yourself, also I have included a link to our YouTube channel with a how to video on code scanning. Most scanners are inexpensive to purchase, you can purchase one from Amazon.com. Once you have the codes please get back to to us so we can further assist you. Thank you for visiting 2CarPros.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

https://youtu.be/YV3TRZwer8k