B3A3A

Active Aerodynamic Feature A 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 the active aerodynamic element
Error message on the dashboard
Poor handling at high speeds

Causes

Short circuit in the sensor circuit
Wiring harness damage
Position sensor malfunction
Problems with the control unit

How to Fix

Check the integrity of the wiring harness
Measure sensor resistance
Check the voltage in the circuit
Replace sensor if necessary
Clean or replace connectors

Related codes

B3A3B B3A3C B3A3D