Jeep Grand Cherokee Transfer Case Control Module 68395643AA

This is a replacement transfer case control module (TCCM) for the 2011-2013 Jeep Grand Cherokee and Dodge Durango 4x4 with the 3.6L V6 or 5.7L V8. It replaces Mopar 68395643AA and the earlier 56029423AI, 56029423AJ and 56029423AK numbers. The label on this unit reads P68395643AA. It uses the factory connectors and mounts in the original location. The 2014-2015, 2016-2018, 2019-2020 and 2021-and-later modules use different part numbers and do not interchange with this one, so match the label on your old module before ordering.

The TCCM reads the 4WD mode selector and drives the transfer case shift motor on the Quadra-Trac II and Quadra-Drive II systems. When it fails, the usual signs are a Service 4WD message, a transfer case that will not shift into or out of 4LO or neutral, selector lights that flash or stay dark, and scan-tool codes for TCCM communication or the shift motor circuit. Before replacing the module, check the fuse, look for corroded or pushed-out connector pins, and make sure the shift motor is not seized.

To install, disconnect the battery, unplug the connectors from the old module, unbolt it and bolt the new one in place. Push the connectors in until they latch, reconnect the battery and clear codes. If the new module sets a configuration code or the 4WD modes do not respond, run a proxi configuration with a capable scan tool, then test every mode, including neutral, on level ground.