•  If a malfunction is detected in the system with the parking brake released, the brake system/ABS warning light illuminates to notify the driver.

•  The brake system/ABS warning light illuminates during a system malfunction, and the control is as follows:

•  If the following signal malfunction is detected in the electric vacuum pump system, the electric vacuum pump warning light illuminates to notify the driver:

•  The simultaneous illumination of the brake warning light and electric vacuum pump warning light notifies the driver that the power brake unit vacuum may fail and a malfunction might occur.

•  The brake system warning light illuminates when the parking brake is applied,

•  The brake system/ABS/electric vacuum pump warning light is built into the instrument cluster.

•  When the DSC system, electric vacuum pump system and CAN lines are functioning normally, the brake system/ABS/electric vacuum pump warning light illuminates when the ignition is switched ON to check for a burned-out bulb, and then turns off after approx. 3 s. At this time, while the parking brake is activated, the brake system warning light remains illuminated, however, it turns off after the parking brake is released.

•  If a malfunction is detected in the DSC system with the parking brake released, the DSC HU/CM sends the brake system/ABS warning lights request signal. When the instrument cluster receives the brake system/ABS warning lights request signal from the DSC HU/CM, the microcomputer turns the transistor on and a ground circuit with the brake system/ABS warning light is established. Therefore, the brake system/ABS warning light illuminates.

•  If a malfunction is detected in the electric vacuum pump system with the parking brake released, the electric vacuum pump control unit sends the brake system/electric vacuum pump warning lights request signal. When the instrument cluster receives the brake system/electric vacuum pump warning lights request signal from the electric vacuum pump control unit, the microcomputer turns the transistor on and a ground circuit with the brake system/electric vacuum pump warning light is established. Therefore, the brake system/electric vacuum pump warning light illuminates.

•  Function not equipped.