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 is getting too much electricity.
The Active Aerodynamic Feature Control Module is receiving a higher voltage than expected, which can affect its operation.
The B3A24 code indicates that the Active Aerodynamic Feature Control Module A is detecting a high voltage condition in its power mode circuit. This module is responsible for adjusting aerodynamic components like spoilers or air dams to improve vehicle efficiency and stability. A high voltage condition could indicate an issue with the power supply or wiring.
• Warning light on the dashboard
• Reduced aerodynamic performance
• Unusual noise from aerodynamic components
• Faulty Active Aerodynamic Feature Control Module
• Wiring issues such as a short circuit
• Faulty power supply or battery
Aerodynamic: Relating to the properties of a solid object regarding the manner in which air flows around it.
Voltage: An electromotive force or potential difference expressed in volts.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage or corrosion.
• Check the voltage levels at the module.
• Repair or replace damaged wiring or connectors.
• Replace the Active Aerodynamic Feature Control Module if faulty.
• Ensure the power supply is providing the correct voltage.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $500
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regular maintenance checks
• Ensure battery terminals are clean
• Inspect wiring for wear and tear
Electrical Issue
• Do not ignore the warning light.
• Consult a professional mechanic for diagnosis.
Check if the vehicle's warranty covers electrical components.
This code has been known to appear in vehicles with advanced aerodynamic systems.
Moderate – Should be addressed to maintain vehicle efficiency.
Driving with this issue may not be safe as it can affect vehicle handling.
• Vehicle stationary
• Engine running
Located near the vehicle's aerodynamic components, often in the front or rear bumper area.
Q: Can I drive with this code?
A: It's not recommended as it may affect vehicle handling.
Q: Will this affect fuel efficiency?
A: Yes, improper aerodynamic function can reduce fuel efficiency.
Pro · Four-system diagnostics
A handheld scanner aimed at engine, transmission, ABS, and airbag diagnostic work.
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Universal · Digital multimeter
A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
Helpful for checking power, ground, and continuity in body-system circuits.
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Universal · Fuse kit
Useful for electrical diagnosis when blown fuses or circuit faults are part of the troubleshooting process.
Useful when body electrical faults trace back to blown fuses or shared circuits.
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Fitment Required · Vehicle-fitment part
Relevant for airflow, fuel-trim, and intake-metering faults after confirming the sensor is actually at fault.
Airflow and fuel-trim codes can involve the mass air flow sensor after proper diagnosis.
Verify the sensor design and fitment for your exact vehicle.
View options on AmazonThese parts may be related to this fault category, but a code by itself does not confirm exact fitment or guarantee that replacing a part will solve the problem.