Internal Fault: Information: Overview

The differential electronic module (DEM) has registered an internal fault.

If the fault is intermittent, it has been registered previously but is no longer present. Intermittent faults can be caused by interference at start up of the differential electronic module (DEM) or may be a different type of fault which occurs on different occasions. The fault is evaluated depending on how it occurs. Replace the differential electronic module (DEM) if the fault recurs.

Other information: 

• See Differential Electronic Module (DEM), Replacing

Remedy as necessary.

Fig 1: Active On Demand Coupling Control Module

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