For Shop Owners

P0745 NISSAN - 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
What does this mean?

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

What does this mean?

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 NISSAN 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 Nissan - Line Pressure Solenoid Valve Fault - itimaster.ru

P0745 NISSAN Information for specific Nissan models

Need more help?

Do you need more help with the P0745 Nissan code? Ask a question to our users or find an automotive repair shop near you to help fix the OBDII code

P0745 NISSAN Comments

Help us improve itimaster.ru. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P0745 Nissan code? Have you replaced any parts?
Any information is appreciated. Thanks
Repair Importance Level: 3
1=Low 2=Medium 3=High
Repair Difficulty Level: 3
1=Easy 2=Moderate 3=Hard

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