p0713 trans fluid sensor high?

I have a 2006 f-250 with the 5.4 and it has 40,600 miles. And the engine light came on and the tow haul flashes. I ran the codes and it came up as p0713. What does this mean. i checked the fluid and it was fine it didn't smell burnt and wasn't discolored. Anything will help!

Was the fluid checked with engine running, warm, and parked pos?
Could the transmission fluid be too hot?
Were you hauling anything?

the truck was running and was driven before being checked.

Did you haul anything, or put alot of miles on during the holiday?

Plastic temp sensor in the pan/ near shift solenoid A--They are faulty.. $83 Ford.