Checking the function of the combustion fan

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Ignition on
• Activate the combustion fan.

  Listen for a buzzing sound which indicates that the combustion fan is running.

  Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

  Courtesy of VOLVO CARS OF NORTH AMERICA.

Does the combustion fan function? 

• YES 

  Refer to Intermittent fault 

• NO 

  Refer to Checking the connectors