Checking auxiliary heater

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Ignition ON

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition on.
NOTE: It is important that only the ignition is on for the heater to start up.
Activate the heater.
A buzzing sound should be heard from the heater.

Check the function of the heater as described in Engine coolant heater, test running .

Additional information:
- For a description of the parameters, see Description of parameters .
- For a description of activations, see Activating components/functions .
Fig 2: Identifying VCT2000 Diagnostic Tool Symbol In VIDA
Courtesy of VOLVO CARS OF NORTH AMERICA.