The brake disc temperature
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2009 Volvo S60, 2008 Volvo S60, 2007 Volvo S60, 2006 Volvo S60, and 2005 Volvo S60. 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.