Checking diagnostic trouble codes (DTCs)

Fig 1: Identifying Ignition Switch ON Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

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

  Check whether one or more of the following codes are stored: ECM-9150, ECM-9160, ECM-9170, ECM-903C or ECM-9100

  Fig 2: Identifying VCT2000 Diagnostic Tool

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Are any of the above diagnostic trouble codes (DTCs) stored? 

• YES 

  Refer to Fault-tracing information 

• NO 

  Refer to Checking components and wiring