The brake disc temperature
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.
Front brake disc temperature.
Measurement range: 0.0-450°C (32-842°F)
The control module derives the brake disc temperature depending on the length of time the anti-spin system has been operating or the ABS has been activated.