Control Unit: Description and Operation

GF28.19-P-3500GZ Rear Axle Differential Lock Control Unit, Component Description
- with CODE (430) Offroad package







The rear axle differential lock control unit is located on the trunk floor on the left in the direction of travel.

Task
The rear axle differential lock control unit is responsible for actuating the multidisk clutch (interwheel differential lock) in the rear axle in order to guarantee the distribution of the engine torque between the left and right rear wheels.

The following control functions are performed by the rear axle differential lock control unit:
- Torque interface
- Compensation process
- Lock protection function
- Plausibility monitoring
- Diagnosis
- Flash programming
- Run-on function