One-way Valve (In Power Steering Speed Sensor)

One-way Valve (In Power Steering Speed Sensor)

1. One-way Valve
2. Reservoir
3. Rotors

57M0062

57M0063

Driving at High Speed:

Pressure develops at the power steering speed sensor inlet because the power steering speed sensor is pumping faster than the fluid can be supplied. To compensate for this, the outlet and inlet ports are connected internally by a passage containing a one-way valve that lets out-put fluid recirculate to the inlet port to equalize pressure.

Relief Valve (In Power Steering Speed Sensor)

1. Reservoir
2. Relief Valve

57M0064

57M0065

Driving in Reverse:

When the car is moving in reverse, the power steering speed sensor also turns backward and pumps fluid in the opposite direction. To avoid building up pressure in the reaction chambers that would increase steering effort while driving in reverse, the inlet and outlet-ports are connected by a second internal passage containing a relief valve that allows the fluid to recirculate.