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P1731 Honda Code - Problem In Shift Control System

Quick Answer

The P1731 Honda code indicates a problem in the shift control system of the vehicle. Common causes include Faulty shift solenoids, Low transmission fluid level, Transmission control module (TCM) failure. 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
P1731 Honda indicates Problem In Shift Control System.
Common causes
Common causes include Faulty shift solenoids, Low transmission fluid level, Transmission control module (TCM) failure.
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 06, 2024
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Code P1731 Honda Description

The P1731 Honda code indicates a problem in the shift control system of the vehicle. This means that there is a malfunction in the transmission's ability to shift gears properly. The shift control system is responsible for managing the transmission's gear shifting process, ensuring smooth and efficient operation. When this system malfunctions, it can lead to issues with gear shifting, which can affect the vehicle's performance, fuel efficiency, and overall driving experience.

OBDII Code P1731 Honda - Problem In Shift Control System
P1731 Honda Code - Problem In Shift Control System

Common Causes of P1731 Honda

  1. Faulty shift solenoids
  2. Low transmission fluid level
  3. Transmission control module (TCM) failure
  4. Wiring or connector issues
  5. Mechanical problems with the transmission

Symptoms of P1731 Honda

  1. Difficulty shifting gears
  2. Delayed or harsh gear shifts
  3. Transmission slipping
  4. Vehicle stuck in a particular gear
  5. Illumination of the Check Engine Light

How to Fix P1731 Honda

  1. Perform a diagnostic scan to confirm the P1731 code and identify the specific issue.
  2. Check the transmission fluid level and quality, top up or replace as needed.
  3. Inspect the shift solenoids and replace any faulty ones.
  4. Test the TCM for proper functioning and replace if necessary.
  5. Inspect and repair any damaged wiring or connectors in the shift control system.

Cost to Fix P1731 Honda

The cost of repairing a problem in the shift control system can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of parts for this repair can range from $100 to $500, with labor costs adding an additional $100 to $300. Overall, the total cost of repairing the shift control system issue could range from $200 to $800. It's important to note that these are rough estimates, and actual costs may vary based on factors such as the vehicle make and model, location, and specific repair shop rates. It's recommended to obtain quotes from local auto repair shops for a more accurate cost estimate.

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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 P1731 Honda Code

1. What does the OBDII code P1731 mean on a Honda?

P1731 indicates a problem in the shift control system, typically related to the transmission's ability to shift gears properly.

2. What are the common symptoms of the P1731 code in a Honda?

Symptoms can include erratic shifting, delayed gear engagement, transmission slippage, or the vehicle being stuck in one gear.

3. What causes the P1731 code to appear on a Honda?

Common causes include a faulty shift solenoid, low or dirty transmission fluid, wiring issues, or problems with the transmission control module (TCM).

4. Can driving with the P1731 code damage my Honda?

Yes, prolonged driving with this code can lead to further transmission damage, so it’s best to address the issue as soon as possible.

5. How can I fix the P1731 code on my Honda?

Repairs may include replacing a faulty shift solenoid, flushing and refilling transmission fluid, repairing damaged wiring, or reprogramming or replacing the transmission control module.

6. How do I diagnose the P1731 code on a Honda?

Diagnosis involves using an OBDII scanner to confirm the code, checking transmission fluid condition, inspecting wiring and connectors, and testing the shift solenoids.

7. Can low transmission fluid trigger the P1731 code on a Honda?

Yes, low or contaminated transmission fluid can cause shifting issues and trigger the P1731 code.

8. Is the P1731 code specific to certain Honda models?

While the P1731 code can appear on various Honda models, it is most commonly associated with vehicles equipped with automatic transmissions.

9. How much does it cost to repair the P1731 code on a Honda?

Repair costs can vary widely, ranging from $100 for a fluid change to $500 or more for solenoid replacement or wiring repairs.

10. Can I clear the P1731 code without fixing the issue?

Clearing the code without addressing the root cause may only temporarily reset the check engine light, and the code is likely to return.

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