Brake Fluid Pressure Sensor/Switch: Description and Operation

Upper breakpoint, pressure switch: 180 ± 4 bar (2610 ± 58 psi)
Lower breakpoint, pressure switch: 140 ± 4 bar (2030 ± 58 psi)
Upper breakpoint, warning switch: 134 ± 2 bar (1943 ± 29 psi)
Lower breakpoint, warning switch: 150 ± 2 bar (1523 ± 29 psi)