Engine-CodesHonda – P0724 Honda

P0724 Honda Code - Brake Switch 'B' Circuit High

Quick Answer

When the diagnostic trouble code P0724 appears in a Honda vehicle, it indicates an issue with the brake switch 'B' circuit being too high. Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning transmission control module. 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
P0724 Honda indicates Brake Switch 'B' Circuit High.
Common causes
Common causes include Faulty brake switch, Damaged wiring or connectors in the brake switch circuit, Malfunctioning transmission control module.
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 11, 2024
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Code P0724 Honda Description

When the diagnostic trouble code P0724 appears in a Honda vehicle, it indicates an issue with the brake switch 'B' circuit being too high. The brake switch is a crucial component in a vehicle's braking system, as it sends a signal to the vehicle's computer when the brake pedal is pressed, indicating that the driver wants to slow down or stop. In this case, a high circuit means that the voltage or resistance in the brake switch 'B' circuit is outside the normal operating range.

OBDII Code P0724 Honda - Brake Switch 'B' Circuit High
P0724 Honda Code - Brake Switch 'B' Circuit High

Common Causes of P0724 Honda

  1. Faulty brake switch
  2. Damaged wiring or connectors in the brake switch circuit
  3. Malfunctioning transmission control module
  4. Problem with the vehicle's computer system

Symptoms of P0724 Honda

  1. Rough or delayed shifting
  2. Difficulty shifting gears
  3. Inaccurate speedometer readings
  4. Illuminated Check Engine Light
  5. Loss of cruise control functionality

How to Fix P0724 Honda

  1. Begin by diagnosing the root cause of the issue using a scan tool to read the trouble codes and pinpoint the problem.
  2. Inspect the brake switch and its wiring for any signs of damage or wear. Replace the brake switch if necessary.
  3. Check the connectors in the brake switch circuit for corrosion or loose connections. Repair or replace as needed.
  4. Test the transmission control module and the vehicle's computer system to ensure they are functioning correctly.
  5. Clear the trouble codes, reset the vehicle's computer, and test drive the vehicle to confirm that the issue has been resolved.

Cost to Fix P0724 Honda

The typical repair costs for addressing a P0724 code in a Honda vehicle can range from $100 to $300, depending on the specific cause of the issue and the cost of parts and labor in your area. It's important to note that diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more precise estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops often charge less for repairs.

When is the Code Detected?

The stop light switch does not turn off even once vehicle is driven.

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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 P0724 Honda Code

1. What are the common symptoms of OBDII code P0724 in a Honda related to the Brake Switch 'B' Circuit High?

The common symptoms include the Check Engine light illuminating on the dashboard, difficulty shifting gears, and potential issues with the vehicle's transmission performance.

2. What does the OBDII code P0724 Brake Switch 'B' Circuit High indicate in a Honda?

This code indicates that the Engine Control Module (ECM) has detected a high voltage condition in the brake switch 'B' circuit, which may affect the proper operation of the transmission.

3. What are the possible causes of the Brake Switch 'B' Circuit High code in a Honda?

Possible causes include a faulty brake light switch, damaged wiring or connectors in the brake switch circuit, a malfunctioning transmission range sensor, or a problem with the ECM itself.

4. How can I diagnose the cause of OBDII code P0724 in my Honda?

You can diagnose the issue by checking the brake switch for proper operation, inspecting the wiring and connectors for any damage, testing the transmission range sensor, and using a diagnostic scanner to read and clear the code.

5. Can I still drive my Honda with OBDII code P0724 Brake Switch 'B' Circuit High?

It is not recommended to drive the vehicle with this code present, as it can lead to transmission issues and potentially unsafe driving conditions. It is best to address the problem promptly.

6. How can I repair OBDII code P0724 in my Honda caused by a faulty brake switch?

To repair this issue, you will need to replace the faulty brake switch with a new one, ensuring proper installation and adjustment for correct operation.

7. Is it possible to reset the OBDII code P0724 in a Honda without fixing the underlying issue?

While you can clear the code using a diagnostic scanner, it is important to address the root cause of the problem to prevent the code from reoccurring.

8. Can a DIY enthusiast fix OBDII code P0724 Brake Switch 'B' Circuit High in a Honda?

Depending on your level of automotive knowledge and experience, you may be able to diagnose and replace the brake switch yourself. However, if you are unsure, it is best to seek professional help.

9. Will fixing OBDII code P0724 in my Honda require a visit to the dealership?

You do not necessarily need to visit the dealership for this issue. A reputable mechanic or automotive repair shop with experience in Honda vehicles can diagnose and repair the problem effectively.

10. How much can I expect to pay to fix OBDII code P0724 in my Honda?

The cost of fixing this issue can vary depending on the specific cause and the labor rates of the repair shop. It is advisable to obtain quotes from different mechanics to compare prices.

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