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P0122 2009 NISSAN PATHFINDER

P0122 2009 NISSAN PATHFINDER - Throttle Position Sensor/Switch '1' Circuit Low Input

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

Possible causes

  • Faulty throttle position sensor
  • Throttle position sensor harness is open or shorted
  • Throttle position sensor circuit poor electrical connection
  • Faulty accelerator pedal position sensor
  • When is the code detected?

    An excessively low voltage from the Throttle Position Sensor (TPS) is sent to Engine Control Module (ECM).

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • P0122 2009 Nissan Pathfinder Description

    The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. This sensor is a kind of potentiometer which transforms the throttle position into output voltage, and emits the voltage signal to the Engine Control Module (ECM). In addition, the sensor detects the opening and closing speed of the throttle valve and feeds the voltage signal to the ECM.

    Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.

    OBDII Code P0122 2009 Nissan Pathfinder - Throttle Position Sensor/Switch '1' Circuit Low Input - Engine-Codes.com

    Related Information

    Repair Importance Level: 3
     
    1=Low 2=Medium 3=High  
    Repair Difficulty Level: 2
     
    1=Easy 2=Moderate 3=Hard  

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