TL L5-2451cc 2.5L SOHC MFI (1997)
pressure from the pump is applied to the high speed valve of the valve body unit. Because the high speed valve has a larger chamfer and the compound
opening area with the low speed valve is larger than that when the vehicle is stopped, the fluid pressure (steering rack thrust) is not generated unless
the displacement angle is large (large steering torque), resulting in moderately heavy steering (medium assist).
HIGH SPEED RANGE:
When the vehicle is driven at high speed, the power steering speed sensor rotor rotates at a high speed, greatly reducing the standard pressure. The
pressure of the power steering speed sensor signal is at the lowest value, and the assist control valve is at the right end position. When the assist
control valve is in this position, the orifice of the valve opens fully. Therefore, the fluid pressure applied to the high speed valve is larger than when
the engine speed is at the middle speed range. The compound opening area with the low speed valve is the largest this time, and the fluid pressure
(steering rack thrust) is not generated unless the displacement angle is very large (low assist).
