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).
The brake fluid level sensor detects the level of the brake fluid in the reservoir. The switch in the sensor closes again when the level is low. A signal is then transmitted from the brake control module (BCM), via the central electronic module (CEM), to the driver information module (DIM), which lights the red warning lamp and the brake warning lamp. The driver information module (DIM) also displays a text message.