Checking diagnostic trouble codes (DTCs) in the central electronic module (CEM)

NOTE: If the central electronic module (CEM) is incorrectly configured it may affect the brake control module (BCM). Fault-trace the central electronic module (CEM) first if there are diagnostic trouble codes (DTCs) stored in both the control modules.

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition on
Read off diagnostic trouble codes (DTCs).

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
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 software