Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means there's a problem with the part of the car that controls how it moves through the air, like a spoiler. It's not getting the right power it needs to work.
The code B3A27 indicates an issue with the power mode circuit of the Active Aerodynamic Feature Control Module A. This module helps control parts of the car that adjust to improve aerodynamics.
The Active Aerodynamic Feature Control Module A is responsible for managing components that adjust the vehicle's aerodynamics, such as active spoilers or air dams. The power mode circuit performance issue suggests that the module is not receiving the correct power supply or signal, which can affect its operation.
• Warning light on the dashboard
• Reduced fuel efficiency
• Unusual noises from the vehicle
• Faulty Active Aerodynamic Feature Control Module
• Poor electrical connection
• Blown fuse or relay
Aerodynamics: The study of how gases interact with moving bodies, like cars.
Control Module: A computer in the car that controls specific functions.
• Check for any visible damage or disconnections in the wiring harness.
• Test the fuses and relays associated with the control module.
• Use a diagnostic tool to check for additional codes and data.
• Repair or replace damaged wiring or connectors.
• Replace any blown fuses or faulty relays.
• Replace the Active Aerodynamic Feature Control Module if necessary.
• OBD-II scanner
• Multimeter
• Screwdriver set
$150 - $600
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly inspect and maintain vehicle wiring.
• Ensure all fuses and relays are in good condition.
• Keep the vehicle's software updated.
Sensor Issue
• Do not ignore the warning light; get it checked promptly.
• Consult a professional mechanic if unsure about repairs.
Check with your vehicle manufacturer for specific warranty coverage on electronic components.
This code has been commonly reported in vehicles with advanced aerodynamic features, particularly in models where these features are new or have been recently updated.
Moderate – While the vehicle may still be drivable, ignoring this issue can lead to reduced performance and efficiency.
Operating a vehicle with a malfunctioning aerodynamic system can affect fuel efficiency and handling. Ensure repairs are conducted by a qualified technician.
• Vehicle at operating temperature
• Aerodynamic features engaged
The Active Aerodynamic Feature Control Module is typically located near the vehicle's front or rear bumper, depending on the specific aerodynamic features it controls.
Q: Can I drive my car with this code?
A: Yes, but it's best to get it fixed soon to avoid any potential issues with fuel efficiency or handling.
Q: Will this code affect my car's performance?
A: It might affect how efficiently your car moves through the air, which can impact fuel efficiency and handling.
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