Engine-Codes
 
OBDII Code List
 
P0745 2005 NISSAN SENTRA

P0745 2005 NISSAN SENTRA - Line Pressure Solenoid Valve Fault

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

Possible causes

  • Low transmission fluid level
  • Dirty transmission fluid
  • Faulty line pressure solenoid valve
  • Line pressure solenoid valve harness is open or shorted
  • Line pressure solenoid valve circuit poor electrical connection
  • Tech notes

    When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

    There is a factory service bulletin for the following Nissan Models:

    2003 Nissan Altima
    2004 Nissan Altima
    2005 Nissan Altima
    2003 Nissan Sentra
    2004 Nissan Sentra
    2005 Nissan Sentra
    2003 Nissan Maxima
    2004 Nissan Maxima
    2004 Nissan Quest
    Nissan Factory Service Bulletin OBDII Code P0745

    When is the code detected?

    The P0745 is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.

    Possible symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)
  • Transmission shift shock
  • P0745 2005 Nissan Sentra Description

    The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).
    OBDII Code P0745 2005 Nissan Sentra - Line Pressure Solenoid Valve Fault - Engine-Codes.com

    Related Information

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

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