Checking the turbocharger (TC) control valve and its hoses

Fig 1: Identifying Ignition Off Position

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition off.
• Check that the hose between the turbocharger (TC) control valve and fresh air intake are undamaged and free from blockage. Check that the nipples on the turbocharger (TC) control valve and fresh air intake are not blocked.
  Fig 2: Checking Turbocharger (TC) Control Valve And Its Hoses

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Are the hose and nipples OK? 

• YES 

  FAULT NOT FOUND:  Troubleshooting has been completed.

• NO 

  Refer to Replacing component