This regulation is not so difficult: the speedometer sensor speed signal will be received by the control unit (location: behind glove box) and used to control the delivery valve in the power steering gear.
This pressure valve allows oil to flow past the power steering valve plungers to create a drag force in the steering. Because the steering wheel after turns should come to a neutral position.
A large amount of oil behind the plunger produces a high drag force against which you have to apply a lot of force when driving, a small amount of oil creates a small drag force - so control is easy. And how much oil is there «counteracts», defines the above valve.
Malfunctions in the power steering system
If the electrical power steering is defective, you can drive the vehicle in the same way as a car with normal mechanical power steering. But to be sure, check the fuses and power supply of the control unit. Between terminals «2» And «7» in the plug socket, the measuring device with the ignition on should show a battery voltage of 12 volts. If nothing happens, carry out further checks in workshops.
If the force on the steering wheel increases when rotating in one direction, then the cause is in the steering mechanism.
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