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Home >> Infiniti >> 2005 >> FX35 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control System - VQ35DE >> DTC P0550: PSP Sensor >> Component Inspection >> Power Steering Pressure Sensor
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Power Steering Pressure Sensor

  1. Reconnect all harness connectors disconnected.
  2. Start engine and let it idle.
  3. Check voltage between ECM terminal 12 and ground under the following conditions.
    ECM TERMINAL REFERENCE

    Condition Voltage
    Steering wheel: Being turned. 0.5 - 4.5V
    Steering wheel: Not being turned. 0.4 - 0.8V
    Fig 1: Checking Voltage Between ECM Terminal 12 And Ground
    G02360672Courtesy of NISSAN MOTOR CO., U.S.A.
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