DEM Status

Indicates the status of the differential electronic module (DEM) (software related) when the diagnostic trouble code was stored.

OK = AOC unit (coupling) is operating normally.

Coupling fully open upon request = AOC unit (coupling) fully open (requested from Brake Control Module (BCM)).

Coupling inactive or faulty (open) = AOC unit (coupling) is open due to a fault in the system.

Coupling closed = AOC unit (coupling) is closed due to a fault in the system.

Clutch overheated = Active on Demand Coupling overheated.

Clutch overheated (open) = the Active on Demand Coupling unit (clutch) is open due to overheating. No torque transferred to the rear axle.

The clutch completely locked on request = Active on Demand Coupling unit (clutch) completely locked (request from the brake control module (BCM)). Maximum torque transferred to the rear axle.