B3A26

Symptoms

• Inoperative active aerodynamics elements
• Error message on the dashboard
• Reduced aerodynamic efficiency at high speeds
• False alarms of other systems are possible

Causes

• Broken wire in the module power harness
• Oxidation or damage to contacts in connectors
• Blown power fuse
• Power relay fault
• Failure of the active aerodynamics module itself

How to Fix

1. Check the condition of the module circuit fuses (according to the electrical diagram)
2. Inspect the wiring harness for damage (especially in bend areas)
3. Check the contacts in the connectors of the module and control unit
4. Test the power supply to the module contacts when the ignition is turned on
5. If necessary, replace the active aerodynamics module

Related codes

Error B3A26 by Vehicle Brand