AutoCodes – Chevrolet – B1379 Chevrolet

B1379 Chevrolet Code - Ignition 3 Fault

Quick Answer

The Diagnostic Trouble Code (DTC) B1379 will set if IGNITION 3 is not active after IGNITION 1 has been active for 20 seconds. Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) circuit poor electrical connection. 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 Chevrolet indicates Ignition 3 Fault.
Common causes: Common causes include Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted, Body Control Module (BCM) circuit poor electrical connection.
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.

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Code Popularity 3,854

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 19, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1379 Chevrolet Description

The Diagnostic Trouble Code (DTC) B1379 will set if IGNITION 3 is not active after IGNITION 1 has been active for 20 seconds. When DTC is present, SERVICE VEHICLE SOON indicator illuminates and check gauges chime will sound. A current DTC B1379 will clear when the fault is no longer present and the ignition switch is cycled. A history DTC B1379 clears when module ignition cycle counter reaches reset threshold, without a repeat of malfunction.

OBDII Code B1379 Chevrolet - Ignition 3 Fault - AutoCodes.com — B1379 Chevrolet Code - Ignition 3 Fault

What does this mean?

What are the Possible Causes of the DTC B1379 Chevrolet?

Faulty Body Control Module (BCM)
Body Control Module (BCM) harness is open or shorted
Body Control Module (BCM) circuit poor electrical connection
Faulty Instrument Panel Cluster (IPC)

How to Fix the DTC B1379 Chevrolet?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1379 Chevrolet code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the B1379 Chevrolet code?

Need more information on how to fix the B1379 Chevrolet code? Get Access to Factory Service Manuals

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Get the B1379 Chevrolet code diagnosed by a professional: Find a repair shop in your area

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 Chevrolet Code

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

The common symptoms of code B1379 Chevrolet include engine misfires, difficulty starting the vehicle, and a noticeable drop in engine performance.

2. What can cause OBDII code B1379 Chevrolet to trigger?

Code B1379 Chevrolet (Ignition 3 Fault) is typically triggered by issues with the ignition system, such as a faulty ignition coil, spark plug, or wiring related to Ignition 3 circuit.

3. How can I diagnose the source of OBDII code B1379 Chevrolet?

To diagnose code B1379 Chevrolet, you can use an OBDII scanner to retrieve the specific fault code. Additionally, inspect the Ignition 3 circuit components for any visible damage or wear.

4. Can a DIY enthusiast repair OBDII code B1379 Chevrolet at home?

Repairing code B1379 Chevrolet may require advanced knowledge and tools. It is recommended to consult a professional mechanic to accurately diagnose and repair the issue related to the Ignition 3 circuit fault.

5. Are there any quick tips to troubleshoot OBDII code B1379 Chevrolet?

Quick troubleshooting tips for code B1379 Chevrolet include checking the ignition coil, spark plug, and wiring connections in the Ignition 3 circuit for any signs of damage or corrosion.

6. What is the potential risk of ignoring OBDII code B1379 Chevrolet?

Ignoring OBDII code B1379 Chevrolet can lead to further damage to the ignition system, reduced fuel efficiency, and potential engine misfires, which may result in costly repairs in the future.

7. Can a bad battery cause OBDII code B1379 Chevrolet to appear?

While a bad battery can cause various electrical issues in a vehicle, OBDII code B1379 Chevrolet is specifically related to faults in the Ignition 3 circuit, typically not directly caused by a bad battery.

8. How much does it cost to repair OBDII code B1379 Chevrolet at a repair shop?

The cost to repair code B1379 Chevrolet can vary depending on the extent of the issue and the labor rates of the repair shop. It is recommended to obtain quotes from multiple shops for an accurate estimate.

9. Is it safe to drive with OBDII code B1379 Chevrolet illuminated?

Driving with OBDII code B1379 Chevrolet illuminated is not recommended, as it can lead to potential engine performance issues and further damage to the ignition system. It is best to address the issue promptly.

10. Can resetting the OBDII system clear code B1379 Chevrolet permanently?

Resetting the OBDII system may temporarily clear code B1379 Chevrolet, but if the underlying issue with the Ignition 3 circuit is not addressed, the code is likely to reappear. It is crucial to diagnose and repair the root cause of the fault.