Engine-CodesToyota – P0746 2018 Toyota RAV4

P0746 2018 Toyota RAV4 Code - Pressure Control Solenoid 'A' Performance

Quick Answer

The OBD-II trouble code P0746 in a 2018 Toyota RAV4 specifically refers to an issue with the Pressure Control Solenoid 'A' Performance. Common causes include Faulty pressure control solenoid, Electrical issues such as wiring problems or a faulty PCM, Mechanical failures within the transmission. 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 2018 Toyota RAV4 indicates Pressure Control Solenoid 'A' Performance.
Common causes
Common causes include Faulty pressure control solenoid, Electrical issues such as wiring problems or a faulty PCM, Mechanical failures within the transmission.
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 14, 2024
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Code P0746 2018 Toyota RAV4 Description

The OBD-II trouble code P0746 in a 2018 Toyota RAV4 specifically refers to an issue with the Pressure Control Solenoid 'A' Performance. This code indicates that there is a problem with the transmission's ability to control hydraulic pressure within the transmission fluid circuit. The pressure control solenoid is responsible for regulating the pressure of the transmission fluid, which is crucial for smooth gear shifts and overall transmission operation.

OBDII Code P0746 2018 Toyota RAV4 - Pressure Control Solenoid 'A' Performance
P0746 2018 Toyota RAV4 Code - Pressure Control Solenoid 'A' Performance

Common Causes of P0746 2018 Toyota RAV4

  1. Faulty pressure control solenoid
  2. Electrical issues such as wiring problems or a faulty PCM
  3. Mechanical failures within the transmission
  4. Contaminated transmission fluid
  5. Clogged transmission filter

Symptoms of P0746 2018 Toyota RAV4

  1. Harsh or erratic shifting
  2. Delayed engagement when shifting gears
  3. Slipping gears
  4. Decreased fuel efficiency
  5. Transmission overheating

How to Fix P0746 2018 Toyota RAV4

  1. Diagnose the issue using a scan tool to confirm the P0746 trouble code and perform a visual inspection of the transmission components.
  2. Test the pressure control solenoid for proper operation and check for any electrical faults.
  3. Replace the pressure control solenoid if it is found to be faulty, ensuring proper installation and connection.
  4. Inspect and replace the transmission fluid and filter if contamination is present.
  5. Clear the trouble code from the PCM memory and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0746 2018 Toyota RAV4

The typical repair costs for addressing the P0746 code in a 2018 Toyota RAV4 can range from $200 to $600, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower rates. It is recommended to obtain quotes from local shops to get a more accurate estimate for this repair.

Tech Notes for P0746 2018 Toyota RAV4

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.

Frequently Asked Questions about P0746 2018 Toyota RAV4 Code

1. What does the OBDII code P0746 mean on a 2018 Toyota RAV4?

P0746 indicates an issue with the Pressure Control Solenoid 'A,' which is responsible for regulating hydraulic pressure in the transmission. It suggests a performance problem or failure.

2. What are the common symptoms of code P0746 in a 2018 Toyota RAV4?

Symptoms may include harsh shifting, slipping gears, transmission overheating, poor acceleration, or the vehicle entering limp mode.

3. What causes code P0746 in a 2018 Toyota RAV4?

Common causes include a faulty pressure control solenoid, low or dirty transmission fluid, clogged transmission fluid passages, or wiring and connector issues.

4. Can I drive my 2018 Toyota RAV4 with the P0746 code?

Driving with this code is not recommended, as it can lead to further damage to the transmission and reduced driving performance.

5. How can I fix the P0746 code on my 2018 Toyota RAV4?

Repairs may involve replacing the pressure control solenoid, changing or flushing the transmission fluid, cleaning fluid passages, or repairing damaged wiring and connectors.

6. How do I diagnose the P0746 code in a 2018 Toyota RAV4?

Diagnosis includes scanning for additional codes, inspecting the transmission fluid condition, testing the pressure control solenoid, and checking the wiring harness for damage.

7. What is the cost to repair the P0746 code on a 2018 Toyota RAV4?

Repair costs can range from $150 to $500+, depending on whether the solenoid needs replacement or if other transmission repairs are required.

8. Can dirty transmission fluid trigger the P0746 code in a 2018 Toyota RAV4?

Yes, dirty or contaminated transmission fluid can restrict solenoid operation and lead to this code.

9. Will resetting the check engine light fix the P0746 code on a 2018 Toyota RAV4?

Resetting the light without addressing the underlying issue will not fix the problem, and the code is likely to return.

10. Is the P0746 code a common issue for the 2018 Toyota RAV4?

While not extremely common, this code can occur in vehicles with high mileage or poor transmission maintenance. Regular fluid changes can help prevent it.

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