Case Assembly, Differential, Electric: Description
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
The electric locker differential has a 12 volt electromagnet coil (1) on the ring gear side of the differential (2). When the coil is energized a dog clutch is engaged in the differential case which locks both axles. It is not uncommon to need some wheel speed differential to engage and disengage the dog clutch. A 5 volt target sensor integrated into the actuator is used to indicate the system has been activated.
NOTE:
System will time out within 2 minutes, when the key is in the on position and the engine is not running.