Outside temperature

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: Identifying Outside Temperature Input And Output Signals

Courtesy of VOLVO CARS OF NORTH AMERICA.

The outside temperature gauge is integrated in the tachometer. Its function is to display the outside temperature and to warn the driver when the conditions are icy by displaying a symbol of a snowflake. The snowflake is displayed at a range of -5 to +2 °C.

A sensor which detects the outside temperature is mounted in the right-hand door mirror. The temperature signal is then read off by either the passenger door module (3/127) or driver's door module (3/126), depending on whether the car is left or right-hand drive. The value is transmitted via the Control area network (CAN) to the central electronic module (4/56) which then forwards the message to the driver's information module (5/1). The temperature is displayed in Celsius or Fahrenheit, depending on the market, in increments of one degree. The temperature unit can be changed when reprogramming.