B3A4E

Active Aerodynamic Feature C Position Sensor 1 Circuit High Voltage

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect operation of active aerodynamics
Malfunction indicator light comes on
Reduced aerodynamic efficiency at high speeds

Causes

Position sensor malfunction
Open or short circuit in wiring harness
Problems with the active aerodynamics control module
Contact corrosion

How to Fix

Check the integrity of the wiring harness and contacts
Test the position sensor to ensure it meets specifications
Check the control module for errors
Replace faulty components

Related codes

B3A4D B3A4F B3A50