Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that a part of the car that helps it move through the air better isn't working right because a sensor isn't getting enough power.
The vehicle's active aerodynamic system uses sensors to adjust parts like spoilers for better airflow. This code indicates that the voltage in the circuit for one of these sensors is too low.
The B3A3D code is triggered when the control module detects a low voltage condition in the circuit of the Active Aerodynamic Feature A Position Sensor 2. This sensor is part of the system that adjusts aerodynamic components to improve vehicle performance and efficiency.
• Poor aerodynamic performance
• Warning light on the dashboard
• Reduced fuel efficiency
• Faulty position sensor
• Wiring issues such as a short or open circuit
• Faulty control module
Aerodynamic: Relating to the way air moves around things.
Sensor: A device that detects or measures a physical property.
• Use a multimeter to check the voltage at the sensor.
• Inspect the wiring and connectors for damage.
• Test the sensor for proper operation.
• Replace the faulty sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the control module if necessary.
• Multimeter
• OBD-II scanner
• Screwdriver set
$150 - $400
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain the aerodynamic components.
• Ensure all sensors are clean and free of debris.
• Check wiring for signs of wear or damage.
Sensor Issue
• Have the vehicle inspected by a professional if this code appears.
• Avoid high-speed driving until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on sensor-related issues.
This code has been more common in newer vehicles with advanced aerodynamic systems.
Moderate – It affects vehicle efficiency but is not immediately dangerous.
Ignoring this code may lead to reduced vehicle performance and efficiency.
• Vehicle at operating temperature
• Aerodynamic system active
The sensor is typically located near the aerodynamic component it monitors, such as a spoiler or air dam.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to decreased fuel efficiency and performance.
Q: Can I drive with this code?
A: Yes, but it's best to have it checked soon to avoid further issues.
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