The PCM was updated (according to the dealership) before I had the fan clutch replaced.
However, what you've described doesn't indicate that my AC problem will be solved. My AC doesn't cool when idling, only when moving. So therefore I have additional questions:
1.) Is the AC not cooling when idling related to the high idling (still sounds like a diesel engine rev)?
2.) What do I need to do to fix the problem with my AC not cooling when idling? I live in Atlanta, Georgia and it's quite hot here with lots of traffic, so my TB spends lots of time idling, so it makes it very uncomfortable.