Hydraulic Pressure Sensor (Brake Pressure)
The hydraulic system pressure sensor provides a 0-5 volt linear voltage signal to the DSC III control module. The linear voltage is a proportionate indication of how hard the driver is pressing on the brake pedal. The signal is provided as an additional determining factor for the DSC III control module to monitor the hydraulic pressure present during all phases of operation, including:
- No Braking
- Partial Braking
- Near ABS regulation state.
The sensor has three pins, power, ground and the 0-5 volt signal. The sensor is capable of monitoring pressure from 0-250bar. The sensor is located in the front brake hydraulic circuit. The actual location varies by the following application:
- DSC III 5.3 (740i/iL and 540i) - The brake pressure sensor is located in the charge pump assembly.
- DSC III 5.3 (750iL) - The sensor is located on the charge piston unit.
- DSC III 5.7 (ALL) - The sensor is located on the hydraulic unit.