AutoCodes – Honda – P0724 Honda

P0724 Honda Code - Brake Switch 'B' Circuit High

Quick Answer

This brake switch send a signal to the Engine Control Module (ECM). Common causes include Faulty Brake Switch, Brake Switch harness is open or shorted, Brake Switch circuit poor electrical connection. 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, Brake Switch harness is open or shorted, Brake Switch circuit poor electrical connection.
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.

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Code Popularity 3,688

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0724 Honda Description

This brake switch send a signal to the Engine Control Module (ECM). The signal is used to detect when the brakes have been applied. In some models the brake switch signal voltage is the same as the voltage supplied to the stop lights.

OBDII Code P0724 Honda - Brake Switch 'B' Circuit High - AutoCodes.com — P0724 Honda Code - Brake Switch 'B' Circuit High

What does this mean?

What are the Possible Causes of the DTC P0724 Honda?

Faulty Brake Switch
Brake Switch harness is open or shorted
Brake Switch circuit poor electrical connection
Misadjusted Brake Switch

How to Fix the DTC P0724 Honda?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0724 Honda 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 P0724 Honda code?

Need more information on how to fix the P0724 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0724 Honda 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 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.