Reading off diagnostic trouble codes (DTCs)

Fig 1: Identifying Ignition Switch ON Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off
• Wait for two minutes so that the diagnostic trouble codes (DTC) can be stored in memory in the transmission control module (TCM).
• Ignition on
• Read out diagnostic trouble codes by clicking the VCT2000 symbol.
  Fig 2: Identifying VCT2000 Diagnostic Tool

  Courtesy of VOLVO CARS OF NORTH AMERICA.
  Fig 3: Identifying Transmission Control Module (TCM)

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Are there any diagnostic trouble codes (DTC) still stored? 

• YES 

  Refer to Control module replacement and programming 

• NO 

  OKAY:  Troubleshooting has been completed.