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P1924 Mazda Code - Fuel Additive Level Circuit Low

Quick Answer

The P1924 diagnostic trouble code (DTC) for Mazda vehicles indicates a Fuel Additive Level Circuit Low. Common causes include Low fuel additive level in the tank, Faulty fuel additive level sensor, Wiring or connection issues in the fuel additive level circuit. 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
P1924 Mazda indicates Fuel Additive Level Circuit Low.
Common causes
Common causes include Low fuel additive level in the tank, Faulty fuel additive level sensor, Wiring or connection issues in the fuel additive level circuit.
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 09, 2024
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Code P1924 Mazda Description

The P1924 diagnostic trouble code (DTC) for Mazda vehicles indicates a Fuel Additive Level Circuit Low. This code is typically triggered when the Engine Control Module (ECM) detects a low voltage signal from the fuel additive level sensor. The fuel additive level sensor is responsible for monitoring the level of fuel additives, such as diesel exhaust fluid (DEF) or other emissions-reducing additives, in the vehicle's system.

OBDII Code P1924 Mazda - Fuel Additive Level Circuit Low
P1924 Mazda Code - Fuel Additive Level Circuit Low

Common Causes of P1924 Mazda

  1. Low fuel additive level in the tank
  2. Faulty fuel additive level sensor
  3. Wiring or connection issues in the fuel additive level circuit
  4. ECM software or hardware issues
  5. Contamination or blockage in the fuel additive system

Symptoms of P1924 Mazda

  1. Check Engine Light illuminated on the dashboard
  2. Reduced fuel efficiency
  3. Poor engine performance
  4. Difficulty starting the engine
  5. Emissions-related issues, such as increased smoke from the exhaust

How to Fix P1924 Mazda

  1. Diagnose the issue by using a scan tool to retrieve the DTC and check the fuel additive level sensor readings.
  2. Inspect the fuel additive tank to ensure the level is correct and there are no leaks or contamination.
  3. Test the fuel additive level sensor for proper functionality and replace if necessary.
  4. Check the wiring and connections in the fuel additive level circuit for any damage or corrosion and repair as needed.
  5. Clear the DTC and reset the ECM to see if the issue has been resolved.

Cost to Fix P1924 Mazda

The typical repair costs for a P1924 code can vary depending on the specific cause of the issue. In general, replacing a faulty fuel additive level sensor can cost anywhere from $100 to $300, including parts and labor. However, additional costs may apply if there are wiring or connection issues that need to be addressed. It is recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your specific vehicle make and model. Keep in mind that labor rates and parts prices can vary based on location and the type of repair facility.

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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 P1924 Mazda Code

1. What are the common symptoms of OBDII code P1924 in a Mazda related to the Fuel Additive Level Circuit Low?

- The common symptoms include the check engine light coming on, poor fuel economy, and potential issues with the vehicle's emission system.

2. What are the possible causes of the OBDII code P1924 Fuel Additive Level Circuit Low in a Mazda?

- The possible causes can range from a faulty fuel additive control module, damaged wiring or connectors in the circuit, to low fuel additive levels in the tank.

3. How can I diagnose the OBDII code P1924 Fuel Additive Level Circuit Low in my Mazda?

- Diagnosis typically involves using an OBDII scanner to retrieve the code, checking the fuel additive level sensor, inspecting the wiring and connectors for any damage, and testing the fuel additive control module.

4. Can I continue driving my Mazda with the OBDII code P1924 Fuel Additive Level Circuit Low?

- It is generally not recommended to continue driving the vehicle with this code present, as it could potentially lead to other issues like poor engine performance or emission problems.

5. How can I repair the OBDII code P1924 Fuel Additive Level Circuit Low in my Mazda?

- Repair methods may include replacing the fuel additive control module, repairing or replacing damaged wiring or connectors, and refilling the fuel additive tank to the appropriate level.

6. Are there any DIY tips for addressing the OBDII code P1924 Fuel Additive Level Circuit Low in my Mazda?

- DIY tips may include checking the fuel additive tank level yourself, inspecting wiring for visible damage, and ensuring all connectors are securely attached.

7. Does the OBDII code P1924 Fuel Additive Level Circuit Low affect vehicle performance?

- While the code itself may not directly affect performance, ignoring the issue could lead to potential problems with the vehicle's emission system and fuel efficiency over time.

8. Can a mechanic reset the OBDII code P1924 Fuel Additive Level Circuit Low without making any repairs?

- While a mechanic can clear the code, it is important to address the underlying issue causing the code to prevent it from reoccurring.

9. How long does it typically take to repair the OBDII code P1924 Fuel Additive Level Circuit Low in a Mazda?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from a few hours to a day for diagnosis and repair.

10. Is it necessary to visit a dealership for repairs related to the OBDII code P1924 Fuel Additive Level Circuit Low in a Mazda?

- While a dealership may have specialized knowledge and tools, an experienced independent mechanic can also effectively diagnose and repair the issue.

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