Vitara JLS (2Dr) 2WD L4-2.0L (2001)
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Power Steering Pressure Signal: Description and Operation
POWER STEERING PRESSURE SWITCH SIGNAL
This signal is sent from the power steering pressure switch (1).
The power steering pressure switch is installed on the power steering pump body (2).
The switch turns ON when the oil pressure is higher than specification.
The turning of the steering wheel causes increased oil pressure. ECM (PCM) uses it as one of the signals for controlling idle air control valve operation.