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Home >> Nissan-Datsun >> 2004 >> Altima Base, Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Control System - 2.5L >> 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.
    POWER STEERING PRESSURE SENSOR TERMINALS VOLTAGE

    Condition Voltage
    Steering wheel is being turned fully. 0.5 - 4.5V
    Steering wheel is not being turned. 0.4 - 0.8V
    Fig 1: Checking Voltage Between ECM Terminal 12 & Ground
    G02884568Courtesy of NISSAN MOTOR CO., U.S.A.
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