beware using junkyard computers in chrysler products. I can not speak with 100% certainty as its not been something I have seen done or attempted myself. That said, most modules have the VIN written to them and will throw a code for a VIN mismatch. Once the VIN is written to a module there is no erasing it. It would be my personal suggestion that you just have the Dealer perform this repair, BUT I completely understand giving the junkyard part a try... It just may cost you more in the end.
New member, TCM issues Please HELP
About a month ago my wife's 2006 Grand Cherokee Laredo v6, 3.7L, RWD decided to go haywire. It will not shift out of 1st gear (limp mode) even after several restarts. Check engine light, ESP/BAS, and Traction Control lights are all on. Dealership checked it out and said that it needed a new TCM. I was told that the TCM was part of the PCM in my model and year. Bought new PCM (programmed and updated) and installed it, still same exact problems as above. The two codes it is spitting out are p0605 and u0101. Guess my first question would be is the TCM and PCM the same part for my make and model (I've heard yes and no) and does anybody have any other suggestions? Any help is greatly appreciated. Thanks
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