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B3930 2016 GMC Sierra Code - Child Security Lock Motors Circuit

Quick Answer

The B3930 code on a 2016 GMC Sierra relates to an issue with the child security lock motors circuit. Common causes include Faulty child security lock motor, Damaged wiring or connectors in the circuit, Defective 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
B3930 2016 GMC Sierra indicates Child Security Lock Motors Circuit.
Common causes
Common causes include Faulty child security lock motor, Damaged wiring or connectors in the circuit, Defective 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 10, 2024
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Code B3930 2016 GMC Sierra Description

The B3930 code on a 2016 GMC Sierra relates to an issue with the child security lock motors circuit. This code indicates that there is a malfunction in the circuit that controls the child security locks in the vehicle. The child security locks are designed to prevent the rear doors from being opened from the inside, providing additional safety for children in the back seats.

OBDII Code B3930 2016 GMC Sierra - Child Security Lock Motors Circuit
B3930 2016 GMC Sierra Code - Child Security Lock Motors Circuit

Common Causes of B3930 2016 GMC Sierra

  1. Faulty child security lock motor.
  2. Damaged wiring or connectors in the circuit.
  3. Defective control module.
  4. Corrosion or rust affecting the components in the circuit.

Symptoms of B3930 2016 GMC Sierra

  1. Inability to engage or disengage the child security locks.
  2. Doors opening unexpectedly from the inside.
  3. Warning light on the dashboard indicating a child security lock issue.
  4. Unusual sounds coming from the rear doors when attempting to use the child security locks.

How to Fix B3930 2016 GMC Sierra

  1. Begin by diagnosing the specific cause of the issue by using a diagnostic scanner to retrieve the trouble codes and pinpoint the exact problem area.
  2. Inspect the child security lock motors, wiring, and connectors for any visible signs of damage or wear.
  3. Test the child security lock motors and switches to determine if they are functioning correctly.
  4. Replace any faulty components, such as motors, wiring, or control modules, as needed.
  5. Clear the trouble codes from the vehicle's computer system and test the child security locks to ensure they are operating properly.

Cost to Fix B3930 2016 GMC Sierra

The cost of repairing a child security lock motors circuit issue can vary depending on the extent of the problem and the specific components that need to be replaced. Generally, you can expect to pay anywhere from $100 to $300 for parts and labor. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to get a few quotes to determine the most cost-effective option for your specific situation.

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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 B3930 2016 GMC Sierra Code

1. What are the common symptoms of OBDII code B3930 on a 2016 GMC Sierra related to the Child Security Lock Motors Circuit?

- The common symptoms include non-functional child security locks, inability to engage or disengage the child security locks, and warning lights on the dashboard.

2. What are the possible causes of OBDII code B3930 on a 2016 GMC Sierra?

- The code B3930 can be triggered by issues such as faulty child security lock motors, damaged wiring in the circuit, or a malfunctioning child security lock switch.

3. How can I diagnose the Child Security Lock Motors Circuit issue causing OBDII code B3930 on my 2016 GMC Sierra?

- To diagnose the problem, you can use a diagnostic scanner to retrieve the OBDII code, inspect the child security lock motors and wiring for any visible damage, and test the child security lock switch for proper functionality.

4. Are there any simple repair tips for fixing OBDII code B3930 on a 2016 GMC Sierra?

- Some simple repair tips include checking and repairing any damaged wiring in the circuit, replacing faulty child security lock motors, and ensuring proper connections to the child security lock switch.

5. Can I drive my 2016 GMC Sierra with OBDII code B3930 related to the Child Security Lock Motors Circuit?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the child security locks for passenger safety.

6. Is it possible to reset OBDII code B3930 on a 2016 GMC Sierra without fixing the underlying issue?

- While you can clear the code temporarily, it is not recommended to reset it without addressing the root cause, as the problem may persist and affect the functionality of the child security lock system.

7. How much does it typically cost to repair OBDII code B3930 on a 2016 GMC Sierra at a dealership or repair shop?

- The cost of repairing OBDII code B3930 can vary depending on the extent of the issue, but it may range from $100 to $300 for parts and labor at a dealership or repair shop.

8. Are there any recalls or technical service bulletins related to OBDII code B3930 on a 2016 GMC Sierra?

- It is recommended to check with GMC or a certified dealership for any recalls or technical service bulletins related to OBDII code B3930 to see if the issue is covered under warranty or a special service campaign.

9. How long does it typically take to repair OBDII code B3930 related to the Child Security Lock Motors Circuit on a 2016 GMC Sierra?

- The repair time can vary based on the specific issue, but it may take anywhere from 1 to 3 hours to diagnose and fix the problem with the child security lock motors circuit.

10. Can I attempt to repair OBDII code B3930 on my 2016 GMC Sierra myself, or should I seek professional help?

- If you have experience with automotive electrical systems and diagnostics, you can attempt to repair the issue yourself by following manufacturer guidelines. Otherwise, it is recommended to seek professional help to ensure the problem is properly addressed.

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