Brake Fluid Level Sensor

If the hydraulic fluid in the reservoir falls to a predetermined low level, the switch contacts close and provide a ground signal to the Body Control Module/Gateway Module (BCM/GWM) assembly. The BCM/GWM assembly then sends a FlexRay bus signal to the Anti-lock Brake System (ABS) control module. On receipt of the signal:

• The Instrument Cluster (IC) illuminates the red brake warning indicator, and the message center displays the critical warning indicator (red warning triangle) and the message Brake Fluid Low.
• The ABS disables Dynamic Stability Control (DSC) functions and sends a Flexray signal to the IC via the BCM/GWM assembly to continuously illuminate the DSC warning indicator.