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Engine-Codes – Scion – P0746 Scion

P0746 Scion Code - Pressure Control Solenoid 'A' Performance

Quick Answer

The P0746 Scion code refers to a malfunction in the Pressure Control Solenoid 'A'. Common causes include Faulty pressure control solenoid 'A', Damaged wiring or connectors, Low transmission fluid level or dirty 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
P0746 Scion indicates Pressure Control Solenoid 'A' Performance.
Common causes
Common causes include Faulty pressure control solenoid 'A', Damaged wiring or connectors, Low transmission fluid level or dirty 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P0746 Scion Description

The P0746 Scion code refers to a malfunction in the Pressure Control Solenoid 'A'. This solenoid is responsible for regulating the hydraulic pressure within the transmission. When this solenoid is not performing as it should, it can lead to issues with shifting gears, reduced fuel efficiency, and overall poor performance of the vehicle. The transmission may also slip or fail to engage properly, leading to a jerky or rough driving experience.

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

Common Causes of P0746 Scion

  1. Faulty pressure control solenoid 'A'
  2. Damaged wiring or connectors
  3. Low transmission fluid level or dirty fluid
  4. Malfunctioning transmission control module
  5. Mechanical issues within the transmission system

Symptoms of P0746 Scion

  1. Harsh or delayed shifting between gears
  2. Transmission slipping or difficulty engaging
  3. Decreased fuel efficiency
  4. Illumination of the Check Engine Light
  5. Transmission overheating

How to Fix P0746 Scion

  1. Use a diagnostic scanner to retrieve the trouble code and further diagnose the issue.
  2. Inspect the pressure control solenoid 'A' and its wiring for any signs of damage or wear.
  3. Test the transmission fluid level and condition, topping up or replacing as necessary.
  4. Check the transmission control module for any faults and repair or replace as needed.
  5. Clear the trouble code from the vehicle's computer system and test drive to ensure the issue has been resolved.

Cost to Fix P0746 Scion

The typical repair costs for addressing a P0746 Scion code can range from $200 to $600, including parts and labor. However, it is essential to note that specific diagnosis time and labor rates at auto repair shops can vary significantly. Factors such as location, vehicle make and model, and engine type can all influence the final repair costs. It is advisable to check with local auto repair shops for a more accurate estimate based on your specific circumstances.

What does this mean?

Tech Notes for P0746 Scion

When a transmission solenoid malfunction, 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, remove 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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