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P0775 Infiniti Code - Pressure Control Solenoid Valve 'B'

Quick Answer

The P0775 code in an Infiniti vehicle refers to an issue with the Pressure Control Solenoid Valve 'B'. Common causes include Faulty Pressure Control Solenoid Valve 'B', Wiring or connector issues, Low transmission fluid levels. 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
P0775 Infiniti indicates Pressure Control Solenoid Valve 'B'.
Common causes
Common causes include Faulty Pressure Control Solenoid Valve 'B', Wiring or connector issues, Low transmission fluid levels.
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 P0775 Infiniti Description

The P0775 code in an Infiniti vehicle refers to an issue with the Pressure Control Solenoid Valve 'B'. This solenoid valve is responsible for regulating the hydraulic pressure in the transmission, which is crucial for smooth gear shifts and overall transmission performance. When this solenoid valve malfunctions or fails to operate properly, it can lead to various transmission problems, affecting the vehicle's performance and drivability.

OBDII Code P0775 Infiniti - Pressure Control Solenoid Valve 'B'
P0775 Infiniti Code - Pressure Control Solenoid Valve 'B'

Common Causes of P0775 Infiniti

  1. Faulty Pressure Control Solenoid Valve 'B'
  2. Wiring or connector issues
  3. Low transmission fluid levels
  4. Transmission control module malfunction
  5. Internal transmission damage

Symptoms of P0775 Infiniti

  1. Harsh or delayed shifting
  2. Transmission slipping
  3. Difficulty shifting gears
  4. Check Engine Light illuminated
  5. Reduced fuel efficiency

How to Fix P0775 Infiniti

  1. Diagnose the issue using a scan tool to confirm the P0775 code and identify the specific cause of the problem.
  2. Inspect the Pressure Control Solenoid Valve 'B' and its wiring for any signs of damage or wear.
  3. Test the solenoid valve for proper operation and replace it if necessary.
  4. Check and refill the transmission fluid to the appropriate level.
  5. Clear the code from the vehicle's computer and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0775 Infiniti

The typical repair costs for addressing the P0775 code in an Infiniti vehicle can vary depending on the specific cause of the issue. Generally, replacing the Pressure Control Solenoid Valve 'B' and addressing any related wiring or fluid issues can range from $200 to $500, including parts and labor. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate based on your location and vehicle model.

What does this mean?

Tech Notes for P0775 Infiniti

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 P0775 is detected when TCM detects an improper voltage drop when it tries to operate the solenoid valve.

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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.

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