Central Electronic Module
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.
The central electronic module (4/56) is the main control module for alarm functionality. The central electronic module determines how the alarm should be activated, deactivated or deployed by receiving information on the Controller Area Network (CAN) from other control modules and via the directly connected signal cables from the components.
Signal cables are directly connected to the central electronic module from:
- Switch in the lock units in all doors (3/74-77), open/closed
- Switch in the lock units in the rear side doors (3/76-77), locked / unlocked
- Switch in the lock unit trunk lid (3/78), open/closed. (S60/S80)
- Switch hood (3/62), open/closed
- Resistive wire (7/135-137), broken/unbroken (only V70/V70XC). Protects rear side windows, on certain versions this includes the rear windshield.
The central electronic module is controlled via a direct cable:
- All turn signal lamps.