Inclination sensor module (ISM)
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.
The inclination sensor module (ISM) is fitted near the rear electronic module (REM) and gives input signals to the rear electronic module (REM) when the alarm is activated. The sensor registers changes in the vehicle angle that would occur during an attempted tow or theft of a wheel, for example. The inclination sensor module (ISM) is connected in series with and powered by the rear electronic module (REM). The inclination sensor module (ISM) is grounded to the body. The cause of the alarm can be read off and verified via VIDA.