Checking Diagnostic Trouble Codes (DTCs) In the Central Electronic Module (CEM)

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on
• Read off diagnostic trouble codes (DTCs) from the Central Electronic Module (CEM).
  Fig 2: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Control Module

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Are diagnostic trouble codes (DTCs) stored in the central electronic module (CEM)? 

• YES 

  OKAY:  Troubleshooting has been completed.

• NO 

  Refer to Checking the Control Module