I have a 2005 Grand Cherokee, and have been following this forum. My history is as follows. I had the N23 change done on August 27, 2013. On October 13, 2013, I found It would not shift into Neutral to be towed. I took it back to the dealer, and they did their module magic. On a trip on April 15, 2014, it failed to shift into neutral in Nebraska. The dealer in North Platte charged me, and got it to work with a module zap. By now, I should have seen the light. On July 5, 2014, I checked before I started on a trip. Back to the Jeep dealer, who, this time, charged me for the re-zap. It seems to last more than a few days, because I was able to shift into 4-low today. But I can't really trust that. My Jeep dealer pleads ignorance of a code change that has been eluded to above. My jeep owners manual refers to fuse 23 and 25 in the Power Distribution Center, and fuse 22 in the Integrated Power Module as FDCM fuses. My dealer wants to replace a part on the transfer case, if he ever gets one in. Since the one that is there works correctly, I am not ready to do that. Can anyone give me a way to reference the code fix, so I can ask the Dealer? If not, is fuse 25 the correct one to pull?