


Replacement transfer case control module for 2019-2020 Grand Cherokee and Durango 4x4 with the 8-speed, replaces 68423302AA. Fixes a Service 4WD light.
This is a replacement transfer case control module (TCCM) for 2019-2020 Jeep Grand Cherokee and Dodge Durango 4x4 models with the 8-speed automatic. It replaces Mopar 68423302AA (also sold as P68423302AA). The listed engine fitment covers the Grand Cherokee 3.0L, 3.6L, 5.7L, 6.2L and 6.4L and the Durango 3.6L, 5.7L and 6.4L. The module uses the factory connectors, including the 4-pin and 16-pin plugs, and mounts in the original location.
The TCCM reads the 4WD mode selector and commands the transfer case shift motor. When it fails you typically see a Service 4WD message, the transfer case will not change between 4HI, 4LO and neutral, the selector lights flash or stay dark, and the scan tool shows TCCM communication or shift motor circuit codes. Rule out a blown fuse, corroded connector pins and a seized shift motor before you blame the module, and match the number on your old module label to 68423302AA before ordering.
To install, disconnect the battery, unplug the connectors from the old module, unbolt it and bolt the new one in place. Plug the connectors in until they latch, reconnect the battery and clear codes. The supplier it as a plug-in replacement; 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.
| Replaces | 68423302AA, P68423302AA |
| Listed fitment | 2019-2020 Jeep Grand Cherokee (3.0L, 3.6L, 5.7L, 6.2L, 6.4L) and Dodge Durango (3.6L, 5.7L, 6.4L) 4x4 with 8-speed automatic |
| Connection | Factory 4-pin and 16-pin connectors, original mounting |
| Weight | 1 lb |
| Setup | May require proxi configuration with a scan tool after install |



