B3A4A
Active Aerodynamic Feature C Actuator Temperature Not Plausible
B3A4A is an OBD-II diagnostic trouble code meaning: Active Aerodynamic Feature C Actuator Temperature Not Plausible. Common causes: actuator temperature sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–222.
Symptoms
- Incorrect operation of active aerodynamic elements
- Error message on the dashboard
- Reduced aerodynamic efficiency at high speeds
Causes
- Actuator temperature sensor malfunction
- Open or short circuit in wiring harness
- Problems with the actuator solenoid valve
- Mechanical fault of the actuator
- Software error in the control module
How to Fix
- Check the wiring harness and connections to the actuator
- Test the actuator temperature sensor
- Check the operation of the solenoid valve
- Inspect the mechanical part of the actuator for damage
- If necessary, replace faulty components
- Update control module software
Related codes
Error B3A4A by Vehicle Brand
FAQ
What does the B3A4A code mean?
B3A4A is an OBD-II diagnostic trouble code that indicates: Active Aerodynamic Feature C Actuator Temperature Not Plausible
What causes a B3A4A error code?
The most common causes of B3A4A include: Actuator temperature sensor malfunction; Open or short circuit in wiring harness; Problems with the actuator solenoid valve; Mechanical fault of the actuator.
How do I fix a B3A4A diagnostic trouble code?
To fix B3A4A: Check the wiring harness and connections to the actuator. Test the actuator temperature sensor. Check the operation of the solenoid valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3A4A?
Limited driving only, diagnose soon
How much does it cost to fix B3A4A?
The estimated repair cost for B3A4A is $56–222. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat