Engine-Codes.com
Engine-Codes – Mazda – P0746 Mazda

P0746 Mazda Code - Pressure Control Solenoid Performance or Stuck Off

Quick Answer

The P0746 diagnostic trouble code (DTC) in a Mazda indicates an issue with the Pressure Control Solenoid Performance or Stuck Off. Common causes include Faulty pressure control solenoid, Wiring or electrical issues related to the solenoid, Low transmission fluid levels 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 Mazda indicates Pressure Control Solenoid Performance or Stuck Off.
Common causes
Common causes include Faulty pressure control solenoid, Wiring or electrical issues related to the solenoid, Low transmission fluid levels 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 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0746 Mazda Description

The P0746 diagnostic trouble code (DTC) in a Mazda indicates an issue with the Pressure Control Solenoid Performance or Stuck Off. This code typically relates to the transmission system of the vehicle, specifically the pressure control solenoid that is responsible for regulating the hydraulic pressure within the transmission. When this solenoid malfunctions or gets stuck in the "off" position, it can lead to various problems with the transmission's operation.

OBDII Code P0746 Mazda - Pressure Control Solenoid Performance or Stuck Off
P0746 Mazda Code - Pressure Control Solenoid Performance or Stuck Off

Common Causes of P0746 Mazda

  1. Faulty pressure control solenoid
  2. Wiring or electrical issues related to the solenoid
  3. Low transmission fluid levels or dirty fluid
  4. Internal transmission problems
  5. Mechanical issues within the transmission

Symptoms of P0746 Mazda

  1. Harsh or erratic shifting
  2. Delayed engagement when shifting gears
  3. Slipping gears
  4. Transmission overheating
  5. Illuminated check engine light

How to Fix P0746 Mazda

  1. Diagnose the root cause of the issue by performing a thorough inspection of the pressure control solenoid, wiring, and transmission system.
  2. Test the pressure control solenoid using a multimeter to check for proper electrical continuity and functionality.
  3. Replace the pressure control solenoid if it is found to be faulty, ensuring to use an OEM or high-quality replacement part.
  4. Inspect and replace any damaged wiring or connectors associated with the solenoid.
  5. Flush and refill the transmission fluid to the correct level and quality, ensuring proper operation of the transmission system.

Cost to Fix P0746 Mazda

The typical repair costs for addressing a P0746 code in a Mazda can vary depending on the specific model and the extent of the issue. On average, the parts required for this repair, such as a new pressure control solenoid, may cost between $100 to $300. The labor costs for this repair can range from $150 to $300, depending on the hourly rates charged by the auto repair shop. It's essential to keep in mind that additional costs may apply if there are any other related issues or if further diagnostics are needed. It's recommended to consult with a trusted mechanic or auto repair shop to obtain a more accurate cost estimate based on your vehicle's specific circumstances.

What does this mean?

Tech Notes for P0746 Mazda

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.

Need more information about the P0746 Mazda code?

Need more information on how to fix the P0746 Mazda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0746 Mazda code diagnosed by a professional: Find a repair shop in your area

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 Mazda Code

1. What are the common symptoms of OBDII code P0746 in a Mazda?

- Common symptoms include issues with shifting gears, slipping transmission, decreased fuel efficiency, and an illuminated Check Engine light.

2. What could cause the P0746 code to trigger in a Mazda?

- The P0746 code is usually triggered by a malfunction in the pressure control solenoid, low transmission fluid levels, a faulty transmission valve body, or wiring issues.

3. How can I diagnose the P0746 code in my Mazda?

- Diagnosis involves using an OBDII scanner to retrieve the fault code, inspecting the transmission fluid level and condition, checking for any visible damages to the wiring, and testing the pressure control solenoid.

4. Can I continue driving my Mazda with the P0746 code present?

- It is not recommended to drive your Mazda with the P0746 code present, as it can lead to further damage to the transmission system and potentially leave you stranded on the road.

5. What are some repair tips for fixing the P0746 code in a Mazda?

- Repair tips include checking and topping up the transmission fluid, replacing the pressure control solenoid if faulty, inspecting and repairing any damaged wiring, and ensuring proper functioning of the transmission valve body.

6. How much does it cost to repair the P0746 code in a Mazda?

- The cost of repairing the P0746 code can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can I reset the P0746 code in my Mazda by disconnecting the battery?

- Disconnecting the battery may temporarily clear the code, but it will not fix the underlying issue causing the P0746 code to trigger. It is recommended to diagnose and repair the problem to prevent further damage.

8. Is it possible to prevent the P0746 code from reoccurring in my Mazda?

- Regular maintenance of the transmission system, checking and replacing transmission fluid as needed, and addressing any issues promptly can help prevent the recurrence of the P0746 code in your Mazda.

9. How long does it typically take to repair the P0746 code in a Mazda?

- The repair time for the P0746 code can vary depending on the exact cause of the issue and the expertise of the mechanic, but it may take a few hours to a full day to complete the repair.

10. Are there any recalls related to the P0746 code in Mazda vehicles?

- It is advisable to check with Mazda or the National Highway Traffic Safety Administration (NHTSA) for any recalls related to the P0746 code in your specific Mazda model.

Discuss the causes and fixes for P0746 Mazda OBDII Code

Submit a New Comment

Code P0746 Mazda comments

No comments found for this page.