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 car's system that controls parts that help the car move through the air better. It's like when a toy with moving parts doesn't work because its battery isn't connected properly.
The code B3A26 indicates an issue with the power mode circuit of the control module responsible for active aerodynamic features, which may not be receiving power or has an open circuit.
The B3A26 code is triggered when the Active Aerodynamic Feature Control Module A detects an open circuit or lack of power in its power mode circuit. This module is responsible for controlling aerodynamic components like active grille shutters or spoilers that adjust to improve vehicle aerodynamics.
• Warning light on the dashboard
• Reduced fuel efficiency
• Aerodynamic features not functioning
• Faulty Active Aerodynamic Feature Control Module
• Open or shorted wiring in the power mode circuit
• Blown fuse related to the aerodynamic system
Aerodynamics: The way air moves around things, like cars.
Circuit: A path for electricity to flow through.
• Inspect the wiring and connectors related to the control module.
• Check for blown fuses in the aerodynamic system circuit.
• Test the control module for proper function.
• Replace or repair damaged wiring or connectors.
• Replace any blown fuses.
• Replace the Active Aerodynamic Feature Control Module if faulty.
• Multimeter
• OBD-II scanner
• Basic hand tools
$150 - $500
Moderate
• Chevrolet Corvette
• Porsche 911
• BMW M Series
• Regularly inspect and maintain the vehicle's electrical systems.
• Ensure all connectors are secure and free from corrosion.
• Perform routine checks on the aerodynamic systems.
Electrical Circuit Issue
• Avoid driving at high speeds until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis and repair.
Check your vehicle's warranty for coverage on electrical system components.
This code has been more prevalent in vehicles with advanced aerodynamic systems, especially in sports cars.
Moderate – While the vehicle can still be driven, efficiency and performance may be affected.
Ignoring this issue may lead to decreased vehicle performance and increased fuel consumption.
• Vehicle parked and engine off
• Access to the vehicle's electrical system
The Active Aerodynamic Feature Control Module is typically located near the front of the vehicle, often behind the grille or bumper.
Q: Can I drive with the B3A26 code?
A: Yes, but it's best to get it checked soon as it may affect fuel efficiency and performance.
Q: Will fixing this code improve my car's performance?
A: Yes, resolving the issue can help restore optimal aerodynamic function and fuel efficiency.
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A solid entry-level multimeter for voltage, continuity, resistance, and basic electrical troubleshooting.
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