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Home >> Infiniti >> 2017 >> QX80 Base, RWD >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (DTCS) (3 Of 4) >> DTC/Circuit Diagnosis >> DTC P0550: PSP Sensor >> Component Inspection (Power Steering Pressure Sensor) >> Diagnostic Test
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Diagnostic Test

  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 terminals under the following conditions.
      ECM Condition Voltage (V)
      Connector + -
      Terminal Terminal
      F91 24 13 Steering wheel Being turned 0.5 - 4.5
      Not being turned 0.4 - 0.8

    Is the inspection result normal?

    YES 

    INSPECTION END

    NO 

    Replace power steering pressure sensor.

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