Jeep Grand Cherokee Transfer Case Control Module 68250124AD

This is a replacement transfer case control module (TCCM) for the 2016-2018 Jeep Grand Cherokee and Dodge Durango with four-wheel drive. It cross-references Mopar 68250124AD, 68250124AA, 68250124AB and 68250124AC and is listed for the 3.0L diesel, 3.6L, 5.7L, 6.2L and 6.4L engines. The TCCM reads the drive mode selector, commands the transfer case shift motor, and talks to the rest of the vehicle over the CAN bus. It uses the factory connectors and mounting.

When the module fails, the transfer case usually still works mechanically but cannot be told what to do. Typical symptoms are a Service 4WD message or flashing 4WD light, a selector that will not engage 4LO or Neutral, a range shift that starts and never finishes, and U-codes for lost communication with the TCCM. Before replacing the module, scan all modules for codes, check the related fuses, grounds and connectors for corrosion, and rule out the shift motor and its position sensor. A good module will not fix a seized shift motor.

To install, turn the ignition off and disconnect the battery, unplug the connectors from the old module, unbolt it, and fit the new one in the same position. Reconnect everything and the battery, then clear codes and run the vehicle through each range. Chrysler modules often need to be configured to the vehicle after replacement (VIN and proxi alignment) with wiTECH or a capable aftermarket scan tool, so have that available rather than counting on it being plug and play.