B3930
Child Security Lock Motors Circuit
B3930 is an OBD-II diagnostic trouble code meaning: Child Security Lock Motors Circuit. Common causes: open or short circuit in wiring harness, malfunction of child lock motors. Estimated repair cost: $56–167.
Symptoms
- Child door lock does not work
- Malfunction indicator on the instrument panel
- Doors do not lock when function is activated
Causes
- Open or short circuit in wiring harness
- Malfunction of child lock motors
- Problems with the door control module
- Poor contact in connectors
How to Fix
- Check the integrity of the wiring harness
- Check power and ground on locking motors
- Check the operation of the locking motors
- Check door control module
- Replace faulty components
Related codes
Error B3930 by Vehicle Brand
FAQ
What does the B3930 code mean?
B3930 is an OBD-II diagnostic trouble code that indicates: Child Security Lock Motors Circuit
What causes a B3930 error code?
The most common causes of B3930 include: Open or short circuit in wiring harness; Malfunction of child lock motors; Problems with the door control module; Poor contact in connectors.
How do I fix a B3930 diagnostic trouble code?
To fix B3930: Check the integrity of the wiring harness. Check power and ground on locking motors. Check the operation of the locking motors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3930?
Do not drive — repair immediately
How much does it cost to fix B3930?
The estimated repair cost for B3930 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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