S80 L6-3.2L VIN 98 B6324S (2007)
The sensor for the parking brake is directly connected to the central electronic module (CEM). A signal which indicates whether the parking brake is
applied or not is transmitted from the sensor to the central electronic module (CEM) (4/56). The central electronic module (CEM) sends the signal on to
the driver information module (DIM) (5/1) via the controller area network (CAN). When the parking brake is applied (activated) the lamp lights.
The driver information module (DIM) can be programmed so that the driver is also warned by an audible signal that the parking brake is activated.
For further information about the electric parking brake, see Design and Function, parking brake module (PBM).
SRS warning lamp
The supplementary restraint system (SRS) (4/9) contacts the driver information module (DIM) (5/1) if there is a problem in the system. A signal is
transmitted via the control area network (CAN) and the driver information module (DIM) lights the SRS lamp and displays a text message. The driver
information module (DIM) also informs the supplemental restraint system module (SRS) whether the indicator lamp is working or not. A text message is
displayed and the red warning lamp lights if the SRS warning lamp is not working.
Brake warning lamp
The brake control module (BCM) (4/16) informs the driver information module (DIM) (5/1) if there is a fault in the brake system. The driver information
module (DIM) informs the driver by lighting warning lamps and also displaying a text message. The signal is transmitted from the brake control module
(BCM) (4/56) to the central electronic module (CEM) on the high speed section of the control area network (CAN). The central electronic module
(CEM) transmits the signal onwards on the low speed section of the controller area network (CAN) to the driver information module (DIM).
