02241 DTC Code: Understanding and Troubleshooting


In the automotive world, Diagnostic Trouble Codes (DTC codes) are crucial tools for diagnosing and troubleshooting issues with modern vehicles. One such code is the 02241 DTC code. In this article, we will explore the meaning of this specific code, its causes, and potential solutions. Whether you are a professional mechanic or a curious car owner, this comprehensive guide will provide you with the necessary knowledge to tackle the 02241 DTC code head-on.

Understanding the 02241 DTC Code

What is a DTC Code?

Before we delve into the specific details of the 02241 DTC code, let’s discuss what DTC codes are in general. DTC codes are standardized diagnostic codes used by onboard vehicle computers, commonly known as OBD-II systems (On-Board Diagnostics II). These codes are generated when the vehicle’s computer system detects an issue or malfunction within various components or systems.

When a specific problem is detected, the OBD-II system generates a unique code that corresponds to that problem. These codes assist mechanics and technicians in identifying the root cause of an issue promptly. With the help of a code scanner or diagnostic tool, the code can be extracted, allowing for efficient troubleshooting and repair.

The Meaning of 02241 DTC Code

The 02241 DTC code specifically pertains to a fault within the vehicle’s fuel pressure regulator circuit. More specifically, it indicates a low voltage condition in the fuel pressure regulator control circuit.

When the fuel pressure regulator is not receiving adequate voltage, it can result in improper fuel pressure regulation, leading to a variety of performance issues within the vehicle. If left unresolved, this can potentially cause engine misfires, reduced fuel efficiency, and overall drivability problems.

Possible Causes of the 02241 DTC Code

To effectively troubleshoot and resolve the 02241 DTC code, it is crucial to understand the underlying causes. Here are some potential causes to consider:

  1. Defective Fuel Pressure Regulator: A faulty fuel pressure regulator can result in low voltage conditions, triggering the 02241 DTC code. This may be due to internal electrical failures or a worn-out component.

  2. Wiring or Connection Issues: Loose or damaged wires, connectors, or terminals within the fuel pressure regulator circuit can lead to voltage irregularities, contributing to the 02241 DTC code.

  3. Faulty Engine Control Module (ECM): In rare cases, a malfunctioning engine control module, also known as the ECM, can send improper signals or fail to provide the correct voltage to the fuel pressure regulator, resulting in the 02241 DTC code.

Troubleshooting and Resolving the 02241 DTC Code

Resolving the 02241 DTC code involves a systematic troubleshooting process. Here are some steps to consider when tackling this code:

Step 1: Check Wiring and Connections

Begin by carefully inspecting the wiring harness, connectors, and terminals within the fuel pressure regulator circuit. Look for any signs of damage, corrosion, or loose connections. Repair or replace any faulty components as necessary. It is recommended to use a multimeter to measure the voltage across the circuit to ensure proper voltage flow.

Step 2: Test the Fuel Pressure Regulator

If the wiring and connections appear to be intact, the next step is to test the fuel pressure regulator itself. This can be done using a fuel pressure gauge and a vacuum pump. Compare the measured values against the manufacturer’s specifications to determine if the regulator is functioning within the acceptable range. Replace the fuel pressure regulator if it fails to meet the specifications.

Step 3: Inspect the Engine Control Module (ECM)

If the previous steps do not resolve the issue, it is essential to check the engine control module for any faults. Consult the vehicle’s service manual to locate the ECM and perform appropriate tests to verify its functionality. If necessary, have the ECM inspected or replaced by a qualified professional.

Frequently Asked Questions

1. Can I continue driving with the 02241 DTC code active?

While it is not advisable to ignore any active DTC codes, the severity of the issue associated with the 02241 code may vary. It is recommended to address the problem as soon as possible to prevent further damage to the fuel system and to avoid potential drivability issues.

2. Can I reset the 02241 DTC code using an OBD-II scanner?

Resetting the DTC code using an OBD-II scanner may temporarily erase the code. However, unless the underlying issue causing the code is resolved, it is likely to reappear after a certain period of driving. It is crucial to diagnose and address the root cause before considering a reset.

3. Can a faulty fuel pressure regulator cause other DTC codes to appear?

Yes, a malfunctioning fuel pressure regulator can contribute to the appearance of additional DTC codes. Improper fuel pressure regulation can affect various engine systems, potentially triggering codes related to fuel mixture, oxygen sensors, and more. It is essential to resolve the primary issue (02241) to prevent related codes from appearing.


The 02241 DTC code is a specific code that indicates a low voltage condition in the fuel pressure regulator control circuit. By understanding its meaning and potential causes, as well as following the suggested troubleshooting steps, you can successfully diagnose and resolve this issue. Remember to always prioritize safety and consult a professional if you’re unsure or lack the necessary tools and experience. Keeping your vehicle’s systems in optimal condition will ensure a smooth and reliable driving experience.

About author


Meet Sam Mitchell, your experienced and reliable guide in the complex world of car fault codes. With a robust career spanning over 15 years as a professional car mechanic, John has the skills, knowledge, and practical experience to help you navigate car fault issues with confidence.


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