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P0550 NISSAN - Power Steering Pressure Sensor Circuit Malfunction

Repair Importance Level: 2/3
Repair Difficulty Level: 2/3 What does this mean?
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Possible causes

  • Faulty Power Steering Pressure Sensor
  • Power Steering Pressure Sensor harness is open or shorted
  • Power Steering Pressure Sensor circuit poor electrical connection
What does this mean?

When is the code detected?

An excessively low or high voltage from the Power Steering Pressure Sensor is sent to Engine Control Module (ECM).

Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Power steering inoperative

P0550 NISSAN Description

Power steering pressure (PSP) sensor is installed to the power steering high-pressure tube and detects a power steering load. This sensor is a potentiometer which transforms the power steering load into output voltage, and emits the voltage signal to the Engine Control Module (ECM). The ECM controls the electric throttle control actuator and adjusts the throttle valve opening angle to increase the engine speed and adjusts the idle speed for the increased load.
OBDII Code P0550 Nissan - Power Steering Pressure Sensor Circuit Malfunction -

P0550 NISSAN Information for specific Nissan models

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P0550 NISSAN Comments

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Any information is appreciated. Thanks
Repair Importance Level: 2
1=Low 2=Medium 3=High
Repair Difficulty Level: 2
1=Easy 2=Moderate 3=Hard

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Posted and Edit by 06-14-2015

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