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Home >> Infiniti >> 2008 >> G35 Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS P0441 Through P0643 >> DTC P0550: PSP Sensor >> Component Inspection
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Component Inspection

  1. CHECK POWER STEERING PRESSURE SENSOR
    1. Turn ignition switch OFF.
    2. Reconnect all harness connectors disconnected.
    3. Start engine and let it idle.
    4. Check the voltage between ECM harness connector and ground under the following conditions.
      TERMINALS VOLTAGE REFERENCE

      ECM Ground Condition Voltage
      Connector Terminal
      F102 87 Ground Steering wheel Being turned 0.5 - 4.5V
      Not being turned 0.4 - 0.8V

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace power steering pressure sensor.