Just bought an '03 2500 with these two codes showing up on my truck P0480: Cooling Fan Control Corcuit and P0483: Fan Speed. I looked for the wires to check if something was messed up and found that they had been cut off at the plug right under the fan clutch. Can anyone help me locate were the other end of the plug is so i can get this fixed please!!!

 

I get the fan speed irrational code as well and have no clue what it means...

 

the plug is under the balancer on the left side of the engine.

 

that kept happening to me ,,,, the bearing was out which caused vibration throws it out of balance then sucks wire in after i changed bearing and it was good