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P0735 Mazda Code - Fifth Gear Error

Quick Answer

The P0735 code for Mazda vehicles indicates a Fifth Gear Error. Common causes include Malfunctioning shift solenoid, Faulty transmission fluid pressure sensor, Damaged transmission clutch. 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
P0735 Mazda indicates Fifth Gear Error.
Common causes
Common causes include Malfunctioning shift solenoid, Faulty transmission fluid pressure sensor, Damaged transmission clutch.
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
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Code P0735 Mazda Description

The P0735 code for Mazda vehicles indicates a Fifth Gear Error. This means that the Transmission Control Module (TCM) has detected an issue with the fifth gear in the transmission. The transmission may not be shifting correctly into fifth gear, or there may be slipping, grinding, or other abnormalities in this gear. This can lead to poor vehicle performance, decreased fuel efficiency, and potential long-term damage to the transmission if not addressed promptly.

OBDII Code P0735 Mazda - Fifth Gear Error
P0735 Mazda Code - Fifth Gear Error

Common Causes of P0735 Mazda

  1. Malfunctioning shift solenoid
  2. Faulty transmission fluid pressure sensor
  3. Damaged transmission clutch
  4. Issues with the transmission control module
  5. Low or contaminated transmission fluid

Symptoms of P0735 Mazda

  1. Difficulty shifting into or out of fifth gear
  2. Slipping or grinding noises when the vehicle is in fifth gear
  3. Delayed engagement or harsh shifting into fifth gear
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P0735 Mazda

  1. Diagnose the specific cause of the fifth gear error by using a diagnostic scanner to retrieve the trouble codes and conducting a visual inspection of the transmission system.
  2. Inspect the shift solenoid, transmission fluid pressure sensor, and transmission clutch for any signs of damage or wear.
  3. Replace any faulty components identified during the inspection, such as the shift solenoid, sensor, or clutch.
  4. Clear the trouble codes from the TCM memory and perform a test drive to ensure that the transmission is shifting correctly into fifth gear.
  5. If the issue persists, further diagnostic testing may be necessary to pinpoint the exact cause of the problem.

Cost to Fix P0735 Mazda

The cost of repairing a P0735 Fifth Gear Error in a Mazda vehicle can vary depending on the specific cause of the issue and the extent of the damage. On average, the repair costs for this type of transmission issue can range from $500 to $1500, including parts and labor. However, it is essential to note that diagnostic time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. It is recommended to obtain quotes from multiple repair shops to get a more accurate estimate of the repair costs.

What does this mean?

Tech Notes for P0735 Mazda

Start by inspecting the transmission fluid level and condition, and change fluid if necessary.

When is the Code Detected?

P0735 is detected when A/T cannot be shifted to the 5th gear position even if electrical circuit is good.

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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 P0735 Mazda Code

1. What does OBDII code P0735 in a Mazda indicate?

- OBDII code P0735 in a Mazda specifically refers to a Fifth Gear Error, signaling a problem with the vehicle's transmission.

2. What are some common symptoms of OBDII code P0735 in a Mazda?

- Common symptoms of P0735 in a Mazda include harsh shifting between gears, delayed engagement when shifting into fifth gear, and potential slipping or lack of power in fifth gear.

3. What are the possible causes of OBDII code P0735 in a Mazda?

- The most common causes of P0735 in a Mazda include a faulty shift solenoid, low transmission fluid levels, a worn clutch, a damaged torque converter, or issues with the transmission control module.

4. How can I diagnose the source of OBDII code P0735 in my Mazda?

- Diagnosing P0735 in a Mazda often involves conducting a thorough inspection of the transmission system, checking for any visible leaks, testing the transmission fluid level and condition, and using specialized diagnostic tools to scan the vehicle's computer system for error codes.

5. Can I continue driving my Mazda with OBDII code P0735 present?

- It is not recommended to continue driving your Mazda with OBDII code P0735 present, as it could lead to further damage to the transmission system and potentially result in unsafe driving conditions.

6. How can I repair OBDII code P0735 in my Mazda?

- Repairing P0735 in a Mazda typically involves addressing the root cause of the issue, which may include replacing a faulty shift solenoid, repairing any transmission fluid leaks, adjusting or replacing the clutch, or reprogramming the transmission control module.

7. Should I attempt to reset the OBDII code P0735 in my Mazda using a diagnostic tool?

- While resetting the OBDII code P0735 using a diagnostic tool may temporarily clear the warning light, it is crucial to address the underlying issue causing the code to prevent further transmission problems.

8. Are there any preventive maintenance tips to avoid OBDII code P0735 in my Mazda?

- To prevent OBDII code P0735 in your Mazda, it is essential to regularly check and maintain proper transmission fluid levels, promptly address any transmission-related issues, and follow the manufacturer's recommended maintenance schedule.

9. Is OBDII code P0735 a common issue in Mazda vehicles?

- OBDII code P0735, indicating a Fifth Gear Error, can occur in Mazda vehicles, particularly in models with automatic transmissions, and is often attributed to wear and tear on transmission components over time.

10. Can a DIY enthusiast with mechanical knowledge repair OBDII code P0735 in a Mazda?

- While some aspects of diagnosing and repairing OBDII code P0735 in a Mazda may be feasible for a DIY enthusiast with mechanical knowledge, it is recommended to consult a professional mechanic or transmission specialist for accurate diagnosis and repair to ensure the issue is resolved effectively.

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