B3930 2018 GMC Sierra Code - Child Security Lock Motors Circuit
Quick Answer
The Body Control Module (BCM) controls the Child Security Lock Relay when it receives a command to lockout the rear doors. Common causes include Faulty Child Security Lock Relay, Child Security Lock Relay harness is open or shorted, Child Security Lock Relay 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
- B3930 2018 GMC Sierra indicates Child Security Lock Motors Circuit.
- Common causes
- Common causes include Faulty Child Security Lock Relay, Child Security Lock Relay harness is open or shorted, Child Security Lock Relay 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.
Code B3930 2018 GMC Sierra Description
What are the Possible Causes of the DTC B3930 2018 GMC Sierra?
- Faulty Child Security Lock Relay
- Child Security Lock Relay harness is open or shorted
- Child Security Lock Relay circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3930 2018 GMC Sierra?
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 B3930 2018 GMC Sierra 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 B3930 2018 GMC Sierra code?
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Frequently Asked Questions about B3930 2018 GMC Sierra Code
1. What are the common symptoms of OBDII code B3930 in a 2018 GMC Sierra related to the Child Security Lock Motors Circuit?
The common symptoms include malfunctioning child safety locks, issues with power door locks, and warning lights on the dashboard.
2. What can cause OBDII code B3930 in a 2018 GMC Sierra?
The code B3930 can be caused by faulty child security lock motors, damaged wiring or connectors, or issues with the control module.
3. How can I diagnose the Child Security Lock Motors Circuit issue in my 2018 GMC Sierra?
Diagnosis involves checking the child security lock motors for proper operation, inspecting wiring and connectors for damage, and using a diagnostic tool to read the OBDII codes.
4. Are there any quick checks I can perform before taking my 2018 GMC Sierra to a mechanic for OBDII code B3930?
You can manually test the child security lock motors, visually inspect the wiring and connectors, and reset the system by disconnecting the battery for a few minutes.
5. Can I repair OBDII code B3930 in my 2018 GMC Sierra myself?
Depending on your skill level and access to tools, you may be able to replace faulty child security lock motors, repair damaged wiring, or reset the system to clear the code.
6. Is it safe to continue driving my 2018 GMC Sierra with OBDII code B3930 related to the Child Security Lock Motors Circuit?
It is generally safe to drive, but it is recommended to address the issue promptly to ensure the child safety locks function correctly in case of an emergency.
7. Will resetting the OBDII code B3930 in my 2018 GMC Sierra make the problem go away permanently?
Resetting the code may temporarily clear the warning light, but if the underlying issue with the child security lock motors or circuitry is not fixed, the code is likely to reappear.
8. How much does it typically cost to repair OBDII code B3930 in a 2018 GMC Sierra at a professional auto repair shop?
The cost of repairs can vary depending on the exact cause of the issue, but it may range from a few hundred to a thousand dollars, including parts and labor.
9. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B3930 in a 2018 GMC Sierra?
Yes, if you have the necessary tools, repair manuals, and skills, you may be able to diagnose and repair the issue related to the Child Security Lock Motors Circuit yourself.
10. Is it important to address OBDII code B3930 in my 2018 GMC Sierra promptly?
Yes, it is important to address the code promptly to ensure the proper functioning of the child safety locks and to prevent any potential safety hazards or inconvenience while operating the vehicle.
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