Power Steering Pressure Control Valve: Description and Operation
SPEED PROPORTIONAL STEERING SOLENOIDDESCRIPTION - SOLENOID CONTROL VALVE
The solenoid control valve is mounted on the speed proportional power steering gear housing.
OPERATION - SOLENOID CONTROL VALVE
Variable-effort power steering is provided by controlling power steering fluid pressure at the power steering gear. A solenoid control valve located on the steering gear is used to control power steering gear return fluid pressure. The pressure is controlled by varying the size of an orifice.
The variable-assist speed-proportional solenoid control valve is controlled by the Body Control Module (BCM). The BCM receives the vehicle speed signal sent from the Powertrain Control Module (PCM). Upon receiving the vehicle speed signal from the PCM, the BCM converts that speed signal into an electrical current usable by the solenoid control valve for controlling the variable effort of the power steering system.
The solenoid control valve is a serviceable component of the variable-effort, speed-proportional power steering gear assembly.