Circuit/System Description

The electronic brake control module (EBCM) monitors the brake fluid level switch via the brake fluid level sensor signal circuit. With the switch closed, the signal circuit is pulled to ground indicating low fluid level. When low fluid level is seen, the EBCM will send a serial data message to the IPC illuminating the red brake warning indicator. The body control module (BCM) monitors the park brake switch via the park brake switch signal circuit. With the park brake applied, the switch is closed and the signal circuit is grounded. The BCM will then send a serial data message to the IPC requesting the red brake warning indicator be illuminated.