B3930 2014 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 2014 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 2014 GMC Sierra Description
What are the Possible Causes of the DTC B3930 2014 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 2014 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 2014 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.
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Frequently Asked Questions about B3930 2014 GMC Sierra Code
1. What does the OBDII code B3930 mean on a 2014 GMC Sierra?
The B3930 code indicates a problem with the Child Security Lock Motors Circuit, which controls the rear door child safety locks.
2. What are the common symptoms of code B3930 in a 2014 GMC Sierra?
Symptoms may include the child safety locks not engaging or disengaging, or the rear doors remaining locked or unlocked despite attempts to control them.
3. What causes the B3930 code to appear in a 2014 GMC Sierra?
Common causes include a faulty child safety lock motor, damaged wiring or connectors in the circuit, or an issue with the Body Control Module (BCM).
4. Can I drive my 2014 GMC Sierra with the B3930 code?
Yes, the vehicle is still drivable, but the child safety locks may not function properly, which could pose a safety risk for children in the rear seats.
5. How do I diagnose the B3930 code on a 2014 GMC Sierra?
Start by checking the wiring and connectors for damage or corrosion, testing the child safety lock motor, and scanning the BCM for additional related codes.
6. How is the B3930 code typically repaired on a 2014 GMC Sierra?
Repairs may include replacing the faulty child safety lock motor, repairing or replacing damaged wiring, or reprogramming or replacing the BCM.
7. How much does it cost to fix the B3930 code on a 2014 GMC Sierra?
Repair costs vary but typically range from $100 to $500, depending on whether the issue is with the motor, wiring, or BCM.
8. Can a blown fuse cause the B3930 code on a 2014 GMC Sierra?
Yes, a blown fuse for the child lock circuit can cause the code. Check the fuses before inspecting other components.
9. How do I reset the B3930 code on a 2014 GMC Sierra?
After repairing the issue, use an OBDII scanner to clear the code. If the issue is resolved, the code should not return.
10. Can the B3930 code indicate a problem with both rear doors?
Yes, the code can indicate a circuit issue affecting one or both rear door child safety locks, depending on the extent of the problem.
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