Checking the diagnostic trouble codes (DTCs)

Fig 1: Identifying Ignition On Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on
• Read off diagnostic trouble codes (DTCs).

  Check to see if any other diagnostic trouble codes (DTCs) are stored. If other diagnostic trouble codes (DTCs) are stored, the engine control module (ECM) may not be able to run the adaptation.

  Fig 2: Identifying VCT2000

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Are any other diagnostic trouble codes (DTCs) stored? 

• YES 

  Refer to Fault-tracing information 

• NO 

  Refer to Checking the status