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B3930 2016 Chevrolet Silverado Code - Child Security Lock Motors Circuit

Quick Answer

The B3930 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado relates to the Child Security Lock Motors Circuit. Common causes include Faulty child security lock motors, Wiring issues or shorts in the child security lock circuit, Corrosion or damage to connectors in the child security lock 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
B3930 2016 Chevrolet Silverado indicates Child Security Lock Motors Circuit.
Common causes
Common causes include Faulty child security lock motors, Wiring issues or shorts in the child security lock circuit, Corrosion or damage to connectors in the child security lock 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code B3930 2016 Chevrolet Silverado Description

The B3930 diagnostic trouble code (DTC) for a 2016 Chevrolet Silverado relates to the Child Security Lock Motors Circuit. This code indicates a problem with the child security lock motors in the vehicle. The child security lock motors are responsible for locking and unlocking the rear doors to prevent children from accidentally opening them while the vehicle is in motion. When this circuit malfunctions, it can affect the proper operation of the child security locks, potentially compromising the safety of passengers, especially children, in the rear seats.

OBDII Code B3930 2016 Chevrolet Silverado - Child Security Lock Motors Circuit
B3930 2016 Chevrolet Silverado Code - Child Security Lock Motors Circuit

Common Causes of B3930 2016 Chevrolet Silverado

  1. Faulty child security lock motors.
  2. Wiring issues or shorts in the child security lock circuit.
  3. Corrosion or damage to connectors in the child security lock system.
  4. Issues with the body control module (BCM) that controls the child security lock motors.
  5. Water damage or exposure to moisture affecting the child security lock components.

Symptoms of B3930 2016 Chevrolet Silverado

  1. Inability to lock or unlock the rear doors using the child security lock feature.
  2. Warning lights or chimes indicating a problem with the child security lock system.
  3. Doors unlocking unexpectedly while driving.
  4. Difficulty opening or closing the rear doors.

How to Fix B3930 2016 Chevrolet Silverado

  1. Begin by conducting a thorough visual inspection of the child security lock motors, wiring, and connectors to check for any obvious signs of damage or corrosion.
  2. Use a multimeter to test the child security lock motors for proper operation and continuity.
  3. Inspect the wiring harness and connectors for any breaks, shorts, or loose connections. Repair or replace damaged wiring as needed.
  4. If the child security lock motors are found to be faulty, replace them with new, OEM-equivalent parts.
  5. Clear the DTC from the vehicle's memory using a diagnostic scan tool and test the child security lock system to ensure proper operation.

Cost to Fix B3930 2016 Chevrolet Silverado

The typical repair costs for addressing the B3930 code on a 2016 Chevrolet Silverado can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay between $150 and $300 for parts and labor to diagnose and repair the child security lock motors circuit. Keep in mind that labor rates at auto repair shops can range from $80 to $150 per hour, so it's advisable to obtain quotes from local shops to get a more accurate estimate 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 Chevrolet Silverado Code

1. What does the OBDII code B3930 mean on a 2016 Chevrolet Silverado?

Code B3930 indicates an issue with the Child Security Lock Motors Circuit, which controls the rear door child locks.

2. What are the symptoms of code B3930 on a 2016 Chevrolet Silverado?

Symptoms may include rear door child locks not engaging or disengaging properly and potential warning lights on the dashboard.

3. What causes code B3930 to be triggered on a 2016 Chevrolet Silverado?

Common causes include wiring issues, a malfunctioning child lock motor, or a faulty door lock control module.

4. Can I still drive my vehicle with code B3930 active?

Yes, you can drive the vehicle, but the child safety locks may not function correctly, which could pose a safety risk for passengers.

5. How do you diagnose code B3930 on a 2016 Chevrolet Silverado?

Diagnosis involves scanning for codes with an OBDII tool, inspecting wiring and connectors, and testing the child lock motor for proper operation.

6. How can I fix code B3930 on my 2016 Chevrolet Silverado?

Repairs may include replacing damaged wiring, connectors, or the child lock motor, and in some cases, resetting the door lock control module.

7. Is code B3930 a common issue on the 2016 Chevrolet Silverado?

This code is not extremely common but may occur due to wear and tear or electrical issues over time.

8. How much does it cost to repair code B3930 on a 2016 Chevrolet Silverado?

Repair costs vary depending on the exact issue but typically range from $100 to $300 for parts and labor.

9. Can a faulty door lock control module trigger code B3930?

Yes, a malfunctioning door lock control module can cause the child lock motors to stop functioning, leading to this code.

10. Will clearing the code B3930 fix the issue?

Clearing the code may temporarily remove the warning, but the underlying problem must be fixed to prevent the code from returning.

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