P0745 Nissan Code - Line Pressure Solenoid Valve Fault
Quick Answer
The P0745 diagnostic trouble code (DTC) for Nissan vehicles indicates a fault with the Line Pressure Solenoid Valve. Common causes include Faulty Line Pressure Solenoid Valve, Low transmission fluid levels, Contaminated transmission fluid. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P0745 Nissan indicates Line Pressure Solenoid Valve Fault.
- Common causes
- Common causes include Faulty Line Pressure Solenoid Valve, Low transmission fluid levels, Contaminated transmission fluid.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
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Code P0745 Nissan Description
The P0745 diagnostic trouble code (DTC) for Nissan vehicles indicates a fault with the Line Pressure Solenoid Valve. This valve is crucial for regulating the transmission fluid pressure within the transmission system. When the Line Pressure Solenoid Valve is not functioning correctly, it can lead to a variety of issues with the vehicle's transmission performance.
Common Causes of P0745 Nissan
- Faulty Line Pressure Solenoid Valve
- Low transmission fluid levels
- Contaminated transmission fluid
- Electrical issues
- Wiring or connector problems
Symptoms of P0745 Nissan
- Erratic or harsh shifting
- Slipping gears
- Delayed engagement when shifting
- Transmission overheating
- Illumination of the Check Engine Light
How to Fix P0745 Nissan
- Begin by diagnosing the specific cause of the Line Pressure Solenoid Valve fault using a diagnostic scanner to retrieve the trouble codes.
- Inspect the transmission fluid level and condition, topping off or replacing the fluid as needed.
- Test the Line Pressure Solenoid Valve for proper operation and replace it if faulty.
- Check the wiring and connectors associated with the solenoid valve for any damage or corrosion, repairing or replacing as necessary.
- Clear the trouble codes and test drive the vehicle to ensure the issue has been resolved.
Cost to Fix P0745 Nissan
The typical cost to repair a Line Pressure Solenoid Valve fault can range from $200 to $600, including parts and labor. However, specific diagnosis time and labor rates can vary depending on the location, vehicle make and model, and engine type. It's recommended to obtain quotes from local auto repair shops to get a more accurate estimate for the repair. Keep in mind that rates at dealerships or in metropolitan areas may be higher, while independent shops often offer more competitive prices.
Tech Notes for P0745 Nissan
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?
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Information for Specific Nissan Models
- P0745 2002 Nissan Altima Sedan — Line Pressure Solenoid Valve Fault
- P0745 2003 Nissan Altima Sedan — Line Pressure Solenoid Valve Fault
- P0745 2004 Nissan Altima Sedan — Line Pressure Solenoid Valve Fault
- P0745 2005 Nissan Altima Sedan — Line Pressure Solenoid Valve Fault
- P0745 2006 Nissan Altima Sedan — Line Pressure Solenoid Valve Fault
- P0745 2002 Nissan Sentra — Line Pressure Solenoid Valve Fault
- P0745 2003 Nissan Sentra — Line Pressure Solenoid Valve Fault
- P0745 2004 Nissan Sentra — Line Pressure Solenoid Valve Fault
- P0745 2005 Nissan Sentra — Line Pressure Solenoid Valve Fault
- P0745 2006 Nissan Sentra — Line Pressure Solenoid Valve Fault
Frequently Asked Questions about P0745 Nissan Code
1. What are the common symptoms of OBDII code P0745 in a Nissan related to the Line Pressure Solenoid Valve fault?
The common symptoms include harsh shifting, transmission slippage, poor acceleration, and the transmission staying in one gear.
2. What is the primary cause of the Line Pressure Solenoid Valve fault indicated by OBDII code P0745 in a Nissan?
The primary cause is usually a malfunctioning Line Pressure Solenoid Valve within the transmission system.
3. How can I diagnose the Line Pressure Solenoid Valve fault causing OBDII code P0745 in my Nissan?
Diagnosis typically involves using a scan tool to read the code, conducting a visual inspection of the wiring and connections, and performing tests on the solenoid valve itself.
4. What are the possible repair options for fixing the Line Pressure Solenoid Valve fault triggering OBDII code P0745 in a Nissan?
Repair options may include cleaning or replacing the solenoid valve, repairing any damaged wiring or connections, or even replacing the transmission control module in severe cases.
5. Can driving with OBDII code P0745 present in a Nissan cause further damage to the vehicle?
Continued driving with this fault can potentially lead to more severe transmission issues over time, so it is recommended to address the problem promptly.
6. Is it safe to continue driving my Nissan with the Line Pressure Solenoid Valve fault indicated by OBDII code P0745?
It is not recommended to drive the vehicle with this fault as it can lead to transmission problems and potential safety hazards on the road.
7. How much does it typically cost to repair the Line Pressure Solenoid Valve fault causing OBDII code P0745 in a Nissan?
The cost of repair can vary depending on the extent of the damage, but it may range from a few hundred to over a thousand dollars, including parts and labor.
8. Are there any preventative maintenance measures I can take to avoid encountering OBDII code P0745 in my Nissan?
Regular transmission fluid changes and inspections can help prevent issues with the Line Pressure Solenoid Valve and potentially avoid triggering this fault code.
9. Can a DIY enthusiast with some automotive knowledge fix the Line Pressure Solenoid Valve fault triggering OBDII code P0745 in a Nissan?
While some experienced DIYers may be able to tackle this repair, it is generally recommended to have a professional mechanic handle transmission-related issues for proper diagnosis and repair.
10. How long does it typically take to repair the Line Pressure Solenoid Valve fault associated with OBDII code P0745 in a Nissan?
The repair time can vary depending on the complexity of the issue and the availability of parts, but it may take a few hours to a full day to complete the repair.
Discuss the causes and fixes for P0745 Nissan OBDII Code
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hi, i have a 350 teanna or alos known as th nissan mixama and i am experiencing same symtoms if i were to change the oil wwould that help me, also when that happens and i switch off the engine for a couple minutes and restart the car will drive plz let me know what needs to be done tky.
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help if i were to remove the trani oil sump pan would i be able to see the solenoids, and can changhe them myself?
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Yes, what is you Nissan model and year? There is a factory service bulletin for some Nissan models that may help you diagnose your problem. See "Tech Notes" above.
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hi, my problem started when the trani oil coller that is bolted to the side of it went bad
and the oil and water started mixing, i cannot get one to buy so i put on an external oil
cooler and the trani is still going into the fail safe mode i change the trani oil and the pob'z is still there is it that the trani is running over hot or i nowq need to get someone
to use the scan tool to erase the code from the memory of the computer and try again? -
Hi, my nissan altima 2001 have 3 codes P0135, P0505 & P0745. I really don't know where should I begin. The principal symptom I see is the RPM doesn't go over 2500, then comes to fail, it doesn't make the transmission shift.
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P0135 is probably for bad front O2 sensor and not related to transmission problem. https://www.autocodes.com/p01...
For the transmission problem which is probably causing the P0745 and P0505, you should start by checking the transmission fluid level and condition. Change the fluid if necessary. If the problem persist you may have a transmission mechanical failure. -
P0745 can be due to the Faulty dropping resistor (12ohms). A friend sent his Tiida to a mechanic who changed the Auto Trans Fluid (7.9L) and then the solenoid but fault still existed. Eventually he checked the dropping resistor and found to be faulty. Replacing the resistor rectified the fault. Took mechanic (not smart or inexperienced or plain dishonest) 4 hours and charged $450.
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Hello Ming, I have that problem I see the same code that you mention, in my case it is a 2007 Altima and change the transmission fluid but the code still appears, do you happen to know where the solenoid that mentions the fault is located? I would appreciate you helping me
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Hello. I have a Nissan Versa 2007 And the diagnostic kit is saying Pressure contro pressure control Solenoid A. code isP0745. Any hints it’s something different, I’m going to rip off my transmission pan and make sure there’s no Debris in the pan. I’m also wonder where would be the wringing where I can test his it’s the circuits.
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hello. i got this fault too when i scan. my car is a nissan march k12 year 2003.
it says line pressure s/v and it was detected under the transmission category.can this be replaced or is it recommended to change the gearbox completely? thank you
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I can see on the dashboard a yellow mark showing engine fault. After Scanning I found fault 0745 showing PC Solenoid A. The thing happened before 4 years. Still, I am running the car without any hassle, no disturb no abnormalities except the yellow signal.
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The P0745 code on your Nissan indicates a Line Pressure Solenoid Valve (also called Pressure Control Solenoid A) fault. This solenoid regulates the hydraulic pressure in your automatic transmission to ensure smooth shifting.
Since you mentioned:
- The check engine light is on
- The code has been there for 4 years
- No driving issues, no shifting problems, and the car runs fine
…it’s likely the issue is either intermittent, false, or the transmission control module (TCM) is compensating well enough that you're not noticing any symptoms.
What You Should Know:
Some P0745 codes can be triggered by momentary voltage spikes, connector corrosion, or even an old stored fault that never got cleared.
If the transmission isn’t slipping, jerking, or shifting hard, the solenoid may be functioning well enough that it's not affecting performance.
However, prolonged operation with a solenoid fault could eventually lead to:- Delayed shifting
- Harsh engagement
- Transmission wear over time
What You Can Do:
- Clear the Code – If you haven’t already, try clearing the code with a scan tool and see if it comes back.
- Inspect the Wiring & Connector – Sometimes corrosion or a loose connector at the transmission can cause this code.
- Transmission Fluid Condition – Check fluid level and color. Dirty or low fluid can affect solenoid operation.
- Monitor for Symptoms – If shifting starts to feel odd, it may be time to inspect or replace the solenoid.
Final Thought:
Since the car has been running flawlessly for years, this may just be a minor electrical fault or stored code. If it’s not affecting performance, it’s safe to keep driving—but it’s a good idea to monitor it and check fluid condition regularly.
Let us know if you decide to clear it or inspect the connector—we’re happy to guide you step by step!
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