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Engine-Codes – Generic – B1379

B1379 Code - Ignition 3 Fault

Quick Answer

The B1379 code indicates an ignition 3 fault in the vehicle's system. Common causes include Faulty ignition coils, Worn out spark plugs, Malfunctioning ignition control module. 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
B1379 indicates Ignition 3 Fault.
Common causes
Common causes include Faulty ignition coils, Worn out spark plugs, Malfunctioning ignition control module.
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 08, 2024
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Code B1379 Description

The B1379 code indicates an ignition 3 fault in the vehicle's system. This means that there is a problem with the ignition system's third component, which could lead to issues starting the engine or running smoothly. The ignition system is crucial for the proper functioning of the vehicle as it is responsible for generating the spark needed to ignite the air-fuel mixture in the engine cylinders.

OBDII Code B1379 - Ignition 3 Fault
B1379 Code - Ignition 3 Fault

Common Causes of B1379

  1. Faulty ignition coils
  2. Worn out spark plugs
  3. Malfunctioning ignition control module
  4. Wiring issues
  5. Corrosion or loose connections in the ignition system

Symptoms of B1379

  1. Engine misfires
  2. Rough idling
  3. Difficulty starting the vehicle
  4. Stalling while driving
  5. Decreased engine performance

How to Fix B1379

  1. Diagnose the specific component causing the ignition 3 fault using a diagnostic scanner to pinpoint the exact issue.
  2. Replace faulty ignition coils, spark plugs, or ignition control module as needed.
  3. Check and repair any damaged wiring or connections in the ignition system.
  4. Clear the error code from the vehicle's system and test drive to ensure the issue has been resolved.
  5. Perform a thorough inspection of the ignition system to prevent future faults and ensure proper functioning.

Cost to Fix B1379

The typical repair costs for addressing an ignition 3 fault can range from $200 to $500, including parts and labor. However, it is essential to note that the specific diagnosis time and labor rates at auto repair shops can vary depending on various factors. Rates may be higher in metropolitan areas or at dealerships, while independent shops may offer lower prices. It is advisable to contact local auto repair shops to get a more accurate estimate for this repair.

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Code B1379 Information for Specific Makes

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 B1379 Code

1. What are common symptoms of OBDII code B1379 Ignition 3 Fault?

- Common symptoms include engine misfires, rough idling, poor acceleration, and potentially stalling of the vehicle.

2. What causes the OBDII code B1379 Ignition 3 Fault?

- The code is typically triggered by issues with the ignition system, such as faulty ignition coils, spark plugs, or wiring.

3. How can I diagnose the source of the Ignition 3 Fault code?

- Diagnosing the issue usually involves inspecting and testing the ignition components, checking for loose connections, and using a scan tool to gather more data.

4. Can a faulty battery cause the B1379 code to appear?

- Yes, a weak or failing battery can sometimes lead to irregular voltage levels that affect the proper functioning of the ignition system, triggering the code.

5. Are there any simple repair tips for fixing the B1379 code?

- Simple repair tips include checking and replacing faulty spark plugs, inspecting ignition coils for damage, and ensuring all wiring connections are secure.

6. Will driving with the Ignition 3 Fault code harm my vehicle?

- Continuing to drive with the code can potentially cause further damage to the engine and other components, so it's best to address the issue promptly.

7. How much does it typically cost to repair the B1379 code?

- The cost of repairs can vary depending on the extent of the issue and the specific components that need to be replaced, but it's advisable to budget for ignition system repairs.

8. Can I reset the B1379 code myself, or should I take it to a mechanic?

- You can try resetting the code using an OBDII scanner, but if the underlying issue is not addressed, the code is likely to reappear. It's recommended to have a mechanic diagnose and repair the problem.

9. Are there any preventive measures to avoid encountering the Ignition 3 Fault code?

- Regular maintenance of the ignition system, such as replacing spark plugs and checking ignition coils, can help prevent issues that may trigger the B1379 code.

10. Is the B1379 code specific to certain car makes and models?

- The B1379 code can be found in various OBDII systems across different car makes and models, particularly those equipped with advanced engine management systems.

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