B3930:04 Code - Child Security Lock Motors Circuit Open
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
- B3930:04 indicates Child Security Lock Motors Circuit Open.
- 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 B3930:04 Description
What are the Possible Causes of the DTC B3930:04?
- 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 B3930:04?
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 B3930:04 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 B3930:04 Code
1. What does OBDII code B3930:04 mean?
B3930:04 indicates an open circuit in the child security lock motors, which control the electronic child safety locks on vehicle doors.
2. What are common symptoms of code B3930:04?
Symptoms include child safety locks failing to engage or disengage, or no response when activating the lock feature from the control switch.
3. What causes code B3930:04?
Common causes include damaged wiring or connectors to the child safety lock motors, a faulty motor, or issues with the control module.
4. Can I still drive my car with code B3930:04?
Yes, but the child safety locks may not function properly, potentially compromising passenger safety for children in the vehicle.
5. How do I diagnose code B3930:04?
Inspect wiring and connectors for damage, test the child safety lock motors for functionality, and check for faults in the control module.
6. How can I fix code B3930:04?
Repairs may involve replacing damaged wiring, repairing connectors, or replacing a faulty child safety lock motor or control module.
7. Is code B3930:04 a serious issue?
While it doesn't affect the drivability of the vehicle, it is important to address for the safety of child passengers.
8. Can a blown fuse cause code B3930:04?
Yes, a blown fuse in the circuit related to the child safety lock motors could trigger this code.
9. Will resetting the code fix B3930:04?
Resetting the code may clear it temporarily, but the underlying issue must be repaired to prevent the code from returning.
10. How much does it cost to repair code B3930:04?
Repair costs vary depending on whether the issue is with wiring, connectors, the motor, or the control module. Labor and parts costs typically range from $50 to $300.
Discuss the causes and fixes for B3930:04 OBDII Code
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