AutoCodes – Mercury – B124D Mercury

B124D Mercury Code - Tire Pressure Sensor General Signal Failure

Quick Answer

The Body Control Module (BCM) monitors the Tire Pressure Sensor. Common causes include Faulty Tire Pressure Sensor, Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B124D Mercury indicates Tire Pressure Sensor General Signal Failure.
Common causes: Common causes include Faulty Tire Pressure Sensor, Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 1,212

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 19, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B124D Mercury Description

The Body Control Module (BCM) monitors the Tire Pressure Sensor. The OBDII code is set by the BCM in continuous memory when 1, 2 or 3 of the tire pressure sensors are faulted or not responding, or when data is not received by the BCM.

OBDII Code B124D Mercury - Tire Pressure Sensor General Signal Failure - AutoCodes.com — B124D Mercury Code - Tire Pressure Sensor General Signal Failure

What does this mean?

What are the Possible Causes of the DTC B124D Mercury?

Faulty Tire Pressure Sensor
Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection

How to Fix the DTC B124D Mercury?

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 B124D Mercury 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.

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Need more information on how to fix the B124D Mercury code? Get Access to Factory Service Manuals

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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 B124D Mercury Code

1. What are the common symptoms of OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure?

- Common symptoms include the TPMS (Tire Pressure Monitoring System) warning light turning on, inaccurate or missing tire pressure readings, and potential issues with the overall TPMS functionality.

2. What are the typical causes of OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure?

- The code B124D can be triggered by faulty tire pressure sensors, low battery voltage in the sensors, damaged wiring or connectors, or issues with the TPMS module.

3. How can I diagnose the OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure?

- Diagnosis involves using an OBDII scanner to retrieve the code, checking the status of each tire pressure sensor, inspecting the wiring and connectors for damage, and testing the TPMS module for proper functionality.

4. What are the recommended repair tips for OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure?

- Repair tips may include replacing faulty tire pressure sensors, ensuring proper battery voltage in the sensors, repairing damaged wiring or connectors, and reprogramming or replacing the TPMS module if necessary.

5. Can I drive my vehicle with the OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure illuminated?

- It is generally safe to drive the vehicle with the code B124D illuminated, but it is important to address the underlying TPMS issue as soon as possible to ensure accurate tire pressure monitoring.

6. How do I reset the TPMS system after repairing the Tire Pressure Sensor General Signal Failure issue?

- After repairing the TPMS issue causing the code B124D, you may need to reset the TPMS system using the appropriate procedure outlined in the vehicle's manual or with the help of a professional mechanic.

7. Is it possible to prevent OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure from occurring?

- Regularly checking and maintaining proper tire pressure, avoiding harsh driving conditions, and promptly addressing any TPMS warning lights can help prevent the occurrence of code B124D related to tire pressure sensor failures.

8. How much does it typically cost to repair the OBDII code B124D (Mercury) for Tire Pressure Sensor General Signal Failure?

- The cost of repair can vary depending on the specific issue causing the code, the labor rates in your area, and whether you choose to address the problem yourself or take it to a professional mechanic.