Remove the special tool

Fig 1: Removing Measuring Equipment And Reinstalling Hose And Hose Clamp

Courtesy of VOLVO CARS OF NORTH AMERICA.

Remove the measuring equipment and reinstall the hose and the hose clamp
Connect the connector to the turbo control valve
Install the turbo control valve to the air cleaner (ACL) housing
Read off the diagnostic codes and erase all stored codes.
NOTE: Fault code ECM-2D will be stored because the turbo control valve is disconnected.