B3A49

Symptoms

• Incorrect operation of the active aerodynamic element
• Check Engine light comes on
• Reduced aerodynamic efficiency at high speeds

Causes

• Position sensor malfunction
• Problems in the electrical circuit (open, short circuit)
• Mechanical damage to the aerodynamic element
• The need to retrain the sensor

How to Fix

1. Check the integrity of the sensor electrical circuit
2. Check the mechanical condition of the aerodynamic element
3. Retrain the sensor using diagnostic equipment
4. If necessary, replace the sensor or aerodynamic element

Related codes

Error B3A49 by Vehicle Brand