AutoCodes – Mazda – P0724 Mazda

P0724 Mazda 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 Mazda 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 3,003

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

What does this mean?

What are the Possible Causes of the DTC P0724 Mazda?

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 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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0724 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 P0724 Mazda code?

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

Need Help with the Code?

Get the P0724 Mazda 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 Mazda Code

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

The common symptoms include the Check Engine Light illuminating on the dashboard, issues with the vehicle's cruise control system, and potential difficulty shifting gears.

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

This code indicates a problem with the brake switch 'B' circuit, specifically that the signal being received is higher than normal or out of range.

3. What are the possible causes of OBDII code P0724 in a Mazda?

Potential causes include a faulty brake light switch, damaged wiring in the brake switch circuit, a malfunctioning brake pedal position sensor, or a problem with the vehicle's ECM.

4. How can I diagnose the OBDII code P0724 Brake Switch 'B' Circuit High in my Mazda?

To diagnose this issue, you can start by checking the brake light switch for proper operation, inspecting the wiring for any damage or loose connections, and testing the brake pedal position sensor using a multimeter.

5. Can I still drive my Mazda with the OBDII code P0724 present?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent any potential safety hazards and further damage to the vehicle's components.

6. How can I repair the OBDII code P0724 Brake Switch 'B' Circuit High in my Mazda?

Repairing this code typically involves replacing the faulty brake light switch, repairing any damaged wiring, or addressing any other underlying issues causing the high circuit signal.

7. Will resetting the OBDII code P0724 in my Mazda make it go away permanently?

Resetting the code may temporarily turn off the Check Engine Light, but if the underlying issue causing the high circuit signal is not addressed, the code is likely to reappear.

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

Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to diagnose and repair this code by following the vehicle's service manual and relevant repair guides.

9. Is it necessary to visit a mechanic for OBDII code P0724 in a Mazda?

While not mandatory, seeking professional help from a mechanic experienced in diagnosing and repairing OBDII codes can ensure an accurate diagnosis and efficient resolution of the issue.

10. How much does it typically cost to repair the OBDII code P0724 Brake Switch 'B' Circuit High in a Mazda?

The cost of repairing this code can vary depending on the specific cause of the issue, the labor rates in your area, and whether genuine Mazda parts are required. It is recommended to obtain quotes from different mechanics for an accurate estimate.