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P0795 2006 Nissan Altima Sedan Code - Pressure Control Solenoid Valve 'C'

Quick Answer

The P0795 code for a 2006 Nissan Altima Sedan specifically refers to an issue with the Pressure Control Solenoid Valve 'C'. Common causes include Electrical issues: Problems with the electrical circuitry, such as wiring damage, loose connections, or a faulty transmission control module, can cause the pressure control solenoid valve 'C' to malfunction, Mechanical issues: Internal mechanical problems within the valve itself, such as clogging, sticking, or physical damage, can also trigger the P0795 code, Fluid contamination: Contaminated or degraded transmission fluid can affect the solenoid valve's performance, leading to issues with pressure regulation. 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
P0795 2006 Nissan Altima Sedan indicates Pressure Control Solenoid Valve 'C'.
Common causes
Common causes include Electrical issues: Problems with the electrical circuitry, such as wiring damage, loose connections, or a faulty transmission control module, can cause the pressure control solenoid valve 'C' to malfunction, Mechanical issues: Internal mechanical problems within the valve itself, such as clogging, sticking, or physical damage, can also trigger the P0795 code, Fluid contamination: Contaminated or degraded transmission fluid can affect the solenoid valve's performance, leading to issues with pressure regulation.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code P0795 2006 Nissan Altima Sedan Description

The P0795 code for a 2006 Nissan Altima Sedan specifically refers to an issue with the Pressure Control Solenoid Valve 'C'. This solenoid valve is a crucial component of the vehicle's transmission system, responsible for regulating hydraulic pressure within the transmission. When this solenoid valve malfunctions or fails, it can lead to various transmission-related problems that can significantly impact the vehicle's performance.

OBDII Code P0795 2006 Nissan Altima Sedan - Pressure Control Solenoid Valve 'C'
P0795 2006 Nissan Altima Sedan Code - Pressure Control Solenoid Valve 'C'

Common Causes of P0795 2006 Nissan Altima Sedan

  1. Electrical issues: Problems with the electrical circuitry, such as wiring damage, loose connections, or a faulty transmission control module, can cause the pressure control solenoid valve 'C' to malfunction.
  2. Mechanical issues: Internal mechanical problems within the valve itself, such as clogging, sticking, or physical damage, can also trigger the P0795 code.
  3. Fluid contamination: Contaminated or degraded transmission fluid can affect the solenoid valve's performance, leading to issues with pressure regulation.
  4. Wear and tear: Over time, normal wear and tear on the solenoid valve can cause it to deteriorate and fail, especially if regular maintenance is neglected.
  5. Faulty solenoid valve: In some cases, the pressure control solenoid valve 'C' may simply be defective and require replacement.

Symptoms of P0795 2006 Nissan Altima Sedan

  1. Erratic shifting: The vehicle may experience unpredictable or inconsistent gear shifts, including slipping gears or abrupt changes in transmission behavior.
  2. Harsh shifting: Gear changes may feel rough, jerky, or harsh, indicating a problem with the transmission's hydraulic pressure regulation.
  3. Delayed engagement: The transmission may hesitate or take longer than usual to engage when shifting between gears, affecting the vehicle's responsiveness.
  4. Transmission slippage: The vehicle may exhibit signs of transmission slippage, where the engine revs higher than normal without a corresponding increase in vehicle speed.
  5. Transmission failure: In severe cases, the transmission may fail to function properly, resulting in the vehicle's inability to move or operate.

How to Fix P0795 2006 Nissan Altima Sedan

  1. Diagnose the issue: Use a diagnostic scanner to retrieve the specific trouble code (P0795) and conduct further tests to confirm that the pressure control solenoid valve 'C' is the root cause of the problem.
  2. Replace the solenoid valve: Remove the defective pressure control solenoid valve 'C' from the transmission, install a new solenoid valve, and ensure proper alignment and connection.
  3. Check electrical connections: Inspect the electrical connections related to the solenoid valve, including wiring, connectors, and the transmission control module, to ensure they are functioning correctly.
  4. Flush and refill transmission fluid: If fluid contamination is suspected, flush the transmission system to remove old or contaminated fluid, then refill it with the manufacturer-recommended transmission fluid.
  5. Test and relearn: After replacing the solenoid valve, perform a test drive to verify that the transmission functions properly, and relearn the transmission adaptations if necessary to ensure optimal performance.

Cost to Fix P0795 2006 Nissan Altima Sedan

The cost estimate for repairing the pressure control solenoid valve 'C' on a 2006 Nissan Altima Sedan can vary depending on several factors, including the price of the replacement part, labor costs, and any additional repairs or services required. On average, the cost of replacing a solenoid valve ranges from $150 to $300, while labor costs can range from $100 to $200 per hour. Overall, the total repair cost for this issue could range from $300 to $600 or more, depending on the specific circumstances.

What does this mean?

Tech Notes for P0795 2006 Nissan Altima Sedan

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.

When is the Code Detected?

The P0795 code is detected when the when normal voltage is not applied to solenoid due to open or short or when TCM detects as irregular by comparing target value with monitor value.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0795 2006 Nissan Altima Sedan Code

1. What does the OBDII code P0795 mean on a 2006 Nissan Altima Sedan?

P0795 indicates an issue with the Pressure Control Solenoid Valve 'C', which helps regulate hydraulic pressure in the transmission.

2. What are the common symptoms of a P0795 code?

Symptoms can include hard or erratic shifting, transmission slipping, lack of power, or the Check Engine Light being illuminated.

3. What causes the P0795 code in a 2006 Nissan Altima?

Common causes include a malfunctioning pressure control solenoid, low transmission fluid, clogged transmission passages, or issues with the transmission control module (TCM).

4. Can low transmission fluid cause a P0795 code?

Yes, low or dirty transmission fluid can cause the solenoid to function improperly, triggering the P0795 code.

5. How can I diagnose the P0795 code on a Nissan Altima?

Diagnosis involves using a scan tool to confirm the code, inspecting the transmission fluid level and condition, testing the solenoid, and checking the wiring and connectors for damage.

6. Is it safe to drive with a P0795 code on my 2006 Nissan Altima?

Driving with this code is not recommended as it can lead to further transmission damage or unsafe driving conditions due to shifting issues.

7. How much does it cost to fix a P0795 code?

Repairs can range from $150 for a simple wiring repair to over $1,000 if the solenoid or transmission needs replacement, depending on labor costs and parts.

8. Can a P0795 code be fixed without replacing the solenoid?

Yes, if the issue is due to low transmission fluid, dirty fluid, or a wiring problem, addressing these issues may resolve the code without replacing the solenoid.

9. How do I reset the P0795 code after repairs?

Use an OBDII scan tool to clear the code after completing the necessary repairs. If the issue is resolved, the code should not return.

10. What happens if I ignore the P0795 code?

Ignoring this code can lead to further transmission damage, reduced vehicle performance, and potentially higher repair costs in the future.

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