Engine-CodesInfiniti – P0746 Infiniti

P0746 Infiniti Code - Pressure Control Solenoid 'A' Performance

Quick Answer

The P0746 Infiniti code refers to a problem with the Pressure Control Solenoid 'A' Performance in the transmission system of the vehicle. Common causes include Faulty pressure control solenoid 'A', 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
P0746 Infiniti indicates Pressure Control Solenoid 'A' Performance.
Common causes
Common causes include Faulty pressure control solenoid 'A', 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.
Table of contents Created and updated by William Orellana on Sep 07, 2024
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Code P0746 Infiniti Description

The P0746 Infiniti code refers to a problem with the Pressure Control Solenoid 'A' Performance in the transmission system of the vehicle. The pressure control solenoid is a vital component that regulates the hydraulic pressure within the transmission. This solenoid is responsible for controlling the flow of transmission fluid, which in turn affects the shifting of gears and overall performance of the transmission system.

OBDII Code P0746 Infiniti - Pressure Control Solenoid 'A' Performance
P0746 Infiniti Code - Pressure Control Solenoid 'A' Performance

Common Causes of P0746 Infiniti

  1. Faulty pressure control solenoid 'A'
  2. Wiring or connector issues
  3. Low transmission fluid levels
  4. Contaminated transmission fluid
  5. Internal transmission damage

Symptoms of P0746 Infiniti

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

How to Fix P0746 Infiniti

  1. Perform a diagnostic scan to confirm the P0746 code and identify the specific issue with the pressure control solenoid 'A'.
  2. Inspect the wiring and connectors associated with the pressure control solenoid for any damage or corrosion.
  3. Check the transmission fluid level and condition, topping off or replacing it if necessary.
  4. Replace the pressure control solenoid 'A' if it is found to be faulty.
  5. Clear the diagnostic trouble codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0746 Infiniti

The repair costs for addressing the P0746 code can vary depending on the specific issue causing the problem. On average, the cost of replacing a pressure control solenoid 'A' can range from $200 to $500, including parts and labor. It is important to note that additional costs may be incurred if other components within the transmission system require attention. As always, it's recommended to consult with a qualified mechanic or transmission specialist for an accurate cost estimate based on your vehicle's make and model.

Tech Notes for P0746 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.

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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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