First, welcome to the Forum, have any problems PM or email me.
If you have not already read the NOOB guide, please do so, a wealth of information on the Jeep Liberty Diesel.
viewtopic.php?f=5&t=54207
This should answer your question as to part numbers for the TCM:
Any of the older (superseded) part numbers listed in the picture will plug and play.
The TCM's are not VIN specific or coded, so any like TCM will plug & play.
But be careful and be very aware of using gas powered vehicle TCMs
Quote:
TCM FITMENT
The TCM, it has no security paring to the vehicle, any TCM for the Jeep Liberty diesel will plug and play. Many TCM's used in gas model Jeeps and Dodge with the 545RFE transmission will actually plug & play in the Jeep Liberty, but you must be very careful of potential engine overrevving issues beyond redline due to their programing designed for gas engines.
Some have installed TCM's from Dodge or Jeep trucks but you have to be really careful as TCM's programed for gas powered vehicles have much higher shift points values vs diesel powered vehicles and can allow the engine's RPMs to rev way beyond its red line when downshifting at higher speeds.
The TCM, it has no security paring to the vehicle, any TCM for the Jeep Liberty diesel will plug and play. Many TCM's used in gas model Jeeps and Dodge with the 545RFE transmission will actually plug & play in the Jeep Liberty, but you must be very careful of potential engine overrevving issues beyond redline due to their programing designed for gas engines.
Some have installed TCM's from Dodge or Jeep trucks but you have to be really careful as TCM's programed for gas powered vehicles have much higher shift points values vs diesel powered vehicles and can allow the engine's RPMs to rev way beyond its red line when downshifting at higher speeds.
