Additional heater and parking heater

WARNING: This page does not describe the selected car, but rather 7 other vehicles, including the 2007 Volvo V70, 2006 Volvo V70, 2005 Volvo V70, 2004 Volvo V70, and 2003 Volvo V70. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Additional Heater And Parking Heater Communication Diagram

Courtesy of VOLVO CARS OF NORTH AMERICA.

If a diesel engine car has a parking heater, the car will have both the additional heater and parking heater functions.

If the parking heater has been programmed and the driver comes to the car earlier than anticipated, the additional heater will not engage until the car is started. The additional heater then determines if the heater should be on or off, even if the driver attempts to disengages the heater using the control stalk.