Diagnostic Trouble Code (DTC) Information DEM-0008

Condition 

Fig 1: Active On Demand Coupling Control Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

The differential electronic module (DEM) checks the software calibration.

The diagnostic trouble code (DTC) is stored if the control module registers a fault in the calibration software.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value 

• Four wheel drive is disengaged.

Possible Source 

• The differential electronic module (DEM) is not calibrated.

Fault symptom[s] 

• Four wheel drive is not functioning.