Checking The Status

Fig 1: Identifying Ignition ON

GLL101051

Courtesy of VOLVO CARS CORPORATION

Ignition on.
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

Continue
Refer to CHECKING THE COMPONENT