Heated Seats (Certain Markets)
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.
There are heater pads in the cushions and backrests to warm the seats. These are controlled by a control module under the seat. A thermistor on the heater pad detects the heat level.
The information between the control module and the central electronic module (CEM) is transmitted using serial communication. This data contains status information, diagnostic information and signals to control the heat level.
The seat heaters are operated using a switch to the right of the climate control module (CCM). The heat can be set to high or low. These temperatures can be programmed using the diagnostic tool.
There are diagnostics for the seat heaters.