No codes. Just start the engine. Disconnect it and the fans should kick on within 30 seconds. If they haven't kicked in within a minute or less, turn the car off and connect the sensor back. Then start checking relays for the fans. If fans do kick on. Check some other stuff to why the car is cutting off. My car cut off a couple times and I just replaced various small things, cleaned stuff, and checked things and it hasn't happened in probably a year.