B14FA
Low Side Driver 3
B14FA is an OBD-II diagnostic trouble code meaning: Low Side Driver 3. Common causes: damage to the low voltage driver, open or short circuit in wiring harness. Estimated repair cost: $56–167.
Symptoms
- Unstable engine operation
- Failure of individual vehicle systems
- Check engine light comes on
Causes
- Damage to the low voltage driver
- Open or short circuit in wiring harness
- Malfunction of the controlled device (solenoid, valve)
- Problems with the control module
How to Fix
- Check the integrity of the wiring harness
- Measure the resistance of the controlled device
- Check the voltage at the driver contacts
- Replace a faulty driver or control module
Related codes
FAQ
What does the B14FA code mean?
B14FA is an OBD-II diagnostic trouble code that indicates: Low Side Driver 3
What causes a B14FA error code?
The most common causes of B14FA include: Damage to the low voltage driver; Open or short circuit in wiring harness; Malfunction of the controlled device (solenoid, valve); Problems with the control module.
How do I fix a B14FA diagnostic trouble code?
To fix B14FA: Check the integrity of the wiring harness. Measure the resistance of the controlled device. Check the voltage at the driver contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B14FA?
Limited driving only, diagnose soon
How much does it cost to fix B14FA?
The estimated repair cost for B14FA is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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