00179 DTC Code: Exploring Causes, Symptoms, and Solutions


In the world of automobile diagnostics, DTC codes play a crucial role in identifying and troubleshooting issues within a vehicle’s systems. One such code is the 00179 DTC code, which may appear on the diagnostic scanner when a problem occurs. Understanding this code, its causes, symptoms, and possible solutions is essential for efficient vehicle maintenance. In this article, we will delve deep into the 00179 DTC code, providing readers with detailed insights to help them tackle related issues effectively.

00179 DTC Code: Overview and Definition

The 00179 DTC code, also known as a Diagnostic Trouble Code, is specifically associated with the automotive industry. These codes are generated by a vehicle’s onboard diagnostic system (OBD) to indicate potential malfunctions or failures in various components or systems. When a fault is detected by the vehicle’s computer system, a DTC is stored and can be read using an OBD scanner or diagnostic tool.

Causes of the 00179 DTC Code

To accurately diagnose and address the 00179 DTC code, it is crucial to understand its potential causes. Here are a few common factors that can trigger this code:

  1. Faulty Oxygen Sensor: The oxygen sensor plays a critical role in measuring the oxygen levels in the exhaust system. If the sensor becomes faulty or fails, it can trigger the 00179 DTC code.

  2. Exhaust Gas Recirculation (EGR) System Issues: Problems with the EGR system, such as clogged passages or a malfunctioning EGR valve, can lead to the triggering of the 00179 DTC code.

  3. Vacuum Leaks: Leaks in the vacuum lines, such as cracks or loose connections, can cause disruptions within the engine’s intake system. These leaks can result in the 00179 DTC code being displayed.

Symptoms of the 00179 DTC Code

Certain indications and symptoms may accompany the appearance of the 00179 DTC code. Recognizing these symptoms can help identify potential issues promptly. Here are a few common signs associated with this code:

  • Illuminated Check Engine Light: One of the primary indications of the 00179 DTC code is the activation of the check engine light on the vehicle’s dashboard. This light should not be ignored, as it signifies a problem requiring attention.

  • Decreased Fuel Efficiency: If you notice a sudden drop in your vehicle’s fuel efficiency, it could be a signal of the 00179 DTC code. The code’s presence often leads to compromised engine performance, resulting in increased fuel consumption.

  • Rough Engine Idling: Another symptom that may accompany the 00179 DTC code is rough or irregular engine idling. Your vehicle’s engine may vibrate or experience inconsistent RPM values when idle.

Solutions for the 00179 DTC Code

Once the 00179 DTC code has been identified, appropriate measures should be taken to rectify the underlying problem. Here are a few potential solutions that can help resolve the 00179 DTC code issue:

  1. Inspect and Replace Faulty Oxygen Sensor: Begin by examining the oxygen sensor for any signs of dysfunction. If found faulty, it is crucial to replace it with a new, compatible sensor to restore optimal operation.

  2. Clean or Replace EGR System Components: In case the EGR system is the cause of the 00179 DTC code, thorough cleaning of the EGR valve, passages, and related components may resolve the issue. If cleaning does not suffice, replacement might be necessary.

  3. Check and Repair Vacuum Leaks: Inspect all vacuum lines and connections for potential leaks. If leaks are detected, ensure they are properly sealed or replace any faulty components to restore the vacuum system’s integrity.

Frequently Asked Questions (FAQs)

To provide further clarity on the topic, here are three frequently asked questions regarding the 00179 DTC code:

Q1: Can the 00179 DTC code cause any severe damage to the vehicle?

A1: While it is essential to address all DTC codes promptly, the 00179 code is not known to cause severe damage to the vehicle. However, running a car with persistent issues may lead to a decrease in performance and further complications over time.

Q2: How can I clear the 00179 DTC code from my vehicle’s computer system?

A2: To clear the 00179 DTC code, you will need an OBD scanner or diagnostic tool. Connect the scanner to the OBD port in your vehicle, navigate to the “Clear Codes” or “Erase Codes” option, and follow the prompts provided by the scanner.

Q3: Can the 00179 DTC code reappear after being cleared?

A3: Yes, the 00179 DTC code can reappear if the underlying issue causing the code has not been resolved. Clearing the code without addressing the root cause will likely result in the code reoccurring.


Understanding the 00179 DTC code and its implications is crucial for efficient vehicle maintenance and troubleshooting. By familiarizing yourself with the code’s causes, symptoms, and potential solutions, you can be better equipped to address related automotive issues. Remember to consult a professional mechanic if you are unsure about tackling the problem yourself. Stay proactive in resolving the 00179 DTC code to ensure optimal vehicle performance and reliability.

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.


Leave a Reply