Checking The Status

Activate the combustion fan.

There is a "buzzing sound" from the combustion fan when it is activated.

The fault is permanent if the combustion fan does not start.

If the combustion fan starts, this is an indication that the fault was present previously but that it is not active at the moment, i. e. the fault is intermittent.

Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA

Courtesy of VOLVO CARS CORPORATION

Refer to CHECKING THE COMPONENT