AutoCodes – Mazda – P0735 Mazda

P0735 Mazda Code - Fifth Gear Error

Quick Answer

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows: Torque converter slip ratio = A x C/B A: Output shaft revolution signal from revolution sensor B: Engine speed signal from Engine Control Module (ECM) C: Gear ratio determined as gear position which TCM supposes If the actual gear position is higher than the position (5th) supposed by TCM, the slip ratio will be more than normal. Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids. 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 Low transmission fluid level, Dirty transmission fluid, Shift solenoids.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 12,577
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0735 Mazda Description

This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (5th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
OBDII Code P0735 Mazda - Fifth Gear Error - AutoCodes.com
P0735 Mazda Code - Fifth Gear Error

What are the Possible Causes of the DTC P0735 Mazda?

  • Low transmission fluid level
  • Dirty transmission fluid
  • Shift solenoids
  • Transmission mechanical problems
  • Transmission hydraulic control circuit

How to Fix the DTC P0735 Mazda?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0735 Mazda code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0735 Mazda code?

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Need Help with the Code?

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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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