Electronic Limited Slip Differential (ELSD) Module

DESCRIPTION 

Courtesy of CHRYSLER GROUP, LLC

1 - ELSD Module Location With Two Row Seating

2 - ELSD Module Location With Three Row Seating

Vehicles equipped with two row seating have the Electronic Limited Slip Differential (ELSD) Module attached to the body under the rear seat near the right rear corner of the seat cushion. Vehicles equipped with three row seating have the Electronic Limited Slip Differential (ELSD) Module installed inside the rear compartment behind the right rear quarter trim panel assembly.

OPERATION 

The ELSD module manages the left and right wheel drive torque distribution to control the vehicle dynamics as per a Drivetrain Control Module (DTCM) command. The ELSD can send 0 to 100% torque from the wheel that is slipping to the other wheel, on the rear axle. The transfer case controls slip from front to rear. The ELSD controls slip from left to right within the rear differential.

Courtesy of CHRYSLER GROUP, LLC

1 - Electric Motor

The ELSD controls an electric motor which drives a gear set which moves a ball ramp to apply force to a wet clutch. This clutch is used to control torque split. Motor position feedback is done with two hall effect sensors on the motor. There is also a temperature sensor on the motor. ELSD will be temporarily disabled with high temperatures on the motor. Communication is via the Controller Area Network-Flexible Data (CAN-FD) bus. To service the electric motor. Refer to ELECTRONIC LIMITED SLIP DIFFERENTIAL (ELSD) MOTOR - 230RIA, REMOVAL AND INSTALLATION .