Engine-CodesCadillac – B1379 Cadillac

B1379 Cadillac Code - Ignition 3 Fault

Quick Answer

The B1379 Cadillac code indicates an ignition 3 fault, which means that there is an issue with the ignition system in the vehicle. Common causes include Faulty ignition coil, Worn or fouled spark plug, Wiring or connection issues in the ignition system. 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 Cadillac indicates Ignition 3 Fault.
Common causes
Common causes include Faulty ignition coil, Worn or fouled spark plug, Wiring or connection issues in the ignition system.
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.
Table of contents Created and updated by William Orellana on Sep 17, 2024
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Code B1379 Cadillac Description

The B1379 Cadillac code indicates an ignition 3 fault, which means that there is an issue with the ignition system in the vehicle. The ignition system is responsible for starting the engine and maintaining its operation. Ignition faults can lead to various performance issues and potentially cause the vehicle to stall or fail to start altogether.

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

Common Causes of B1379 Cadillac

  1. Faulty ignition coil
  2. Worn or fouled spark plug
  3. Wiring or connection issues in the ignition system
  4. Engine control module (ECM) malfunction
  5. Ignition timing problems

Symptoms of B1379 Cadillac

  1. Engine misfires or hesitation during acceleration
  2. Rough idling or stalling
  3. Decreased fuel efficiency
  4. Illuminated check engine light
  5. Difficulty starting the engine

How to Fix B1379 Cadillac

  1. Diagnose the specific cause of the Ignition 3 Fault using a diagnostic scanner to pinpoint the exact issue.
  2. Inspect the third ignition coil and spark plug for any signs of damage or wear. Replace if necessary.
  3. Check the wiring and connections in the ignition system for any loose or damaged components. Repair or replace as needed.
  4. Test the ECM to ensure it is functioning correctly. Replace if it is found to be faulty.
  5. Reset the fault code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix B1379 Cadillac

The typical repair costs for addressing an Ignition 3 Fault can vary depending on the specific cause of the issue. In general, replacing an ignition coil can cost between $100 to $300, while replacing a spark plug can range from $50 to $150. Labor costs can add an additional $80 to $150 per hour, and the total repair cost can range from $200 to $500 or more. It's important to note that these are rough estimates, and actual costs may vary based on the vehicle's make and model, location, and the extent of the repairs needed. It is advisable to consult with a professional mechanic for a more accurate cost estimate.

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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 B1379 Cadillac Code

1. What are the common symptoms of OBDII code B1379 Cadillac (Ignition 3 Fault)?

The common symptoms of OBDII code B1379 Cadillac (Ignition 3 Fault) include engine misfires, rough idling, stalling, and issues with starting the vehicle.

2. What can cause the OBDII code B1379 Cadillac (Ignition 3 Fault) to trigger?

The OBDII code B1379 Cadillac (Ignition 3 Fault) can be triggered by a faulty ignition coil, wiring issues, or problems with the ignition control module.

3. How can I diagnose the OBDII code B1379 Cadillac (Ignition 3 Fault)?

Diagnosing the OBDII code B1379 Cadillac (Ignition 3 Fault) involves using a diagnostic scanner to retrieve the code, inspecting the ignition system components, and testing the ignition coil and related wiring for proper functioning.

4. What are some repair tips for fixing OBDII code B1379 Cadillac (Ignition 3 Fault)?

Repair tips for fixing OBDII code B1379 Cadillac (Ignition 3 Fault) may include checking and replacing the faulty ignition coil, repairing any damaged wiring, and ensuring proper connection of the ignition control module.

5. Can I drive my vehicle with the OBDII code B1379 Cadillac (Ignition 3 Fault) active?

It is not recommended to drive your vehicle with the OBDII code B1379 Cadillac (Ignition 3 Fault) active, as it can lead to further damage to the engine and affect the overall performance of the vehicle.

6. How much does it cost to repair OBDII code B1379 Cadillac (Ignition 3 Fault)?

The cost to repair OBDII code B1379 Cadillac (Ignition 3 Fault) can vary depending on the specific issue causing the code, but it may range from $100 to $500 or more, including parts and labor.

7. Are there any preventive measures to avoid OBDII code B1379 Cadillac (Ignition 3 Fault)?

Regular maintenance of the ignition system, such as timely replacement of spark plugs and ignition coils, can help prevent issues that may trigger OBDII code B1379 Cadillac (Ignition 3 Fault).

8. Can a DIY enthusiast fix OBDII code B1379 Cadillac (Ignition 3 Fault)?

While some DIY enthusiasts may be able to diagnose and repair OBDII code B1379 Cadillac (Ignition 3 Fault) if they have the necessary tools and knowledge, it is recommended to seek professional help for accurate diagnosis and repair.

9. How long does it take to repair OBDII code B1379 Cadillac (Ignition 3 Fault)?

The repair time for OBDII code B1379 Cadillac (Ignition 3 Fault) can vary depending on the underlying issue, but it may take anywhere from one to three hours at a repair shop.

10. Will resetting the OBDII system clear the B1379 Cadillac (Ignition 3 Fault) code?

Resetting the OBDII system may temporarily clear the B1379 Cadillac (Ignition 3 Fault) code, but if the underlying issue is not fixed, the code is likely to reappear. It is recommended to diagnose and repair the root cause of the code.

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