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Home >> Lexus >> 2004 >> IS 300 Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System - Diagnosis >> Circuit Inspection >> DTC P0550: Power Steering Pressure Sensor/Switch Circuit, DTC P0552: Power Steering Pressure Sensor/Switch Circuit Low Input, DTC P0553: Power Steering Pressure Sensor/Switch Circuit High Input >> Circuit Description
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Circuit Description

ECM controls idle speed most appropriately according to a signal from the power steering pressure sensor.

Fig 1: DTC P0550, P0552 & P0553 Chart
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