Checking communication with the differential electronic module (DEM)

HINT: The CAN communication with the control module is probably OK if the control module ID can be read off. In that case the fault is probably intermittent and will then be more difficult to trace. 

Fig 1: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Try to communicate with the differential electronic module (DEM) by reading off the control module ID
• Click on the symbol for VCT2000 to begin reading off

• Continue 

  Refer to Signal missing