B3A2B

Active Aerodynamic Feature Control Module B Power Mode Circuit Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Inoperative active aerodynamics elements
Error message on the dashboard
Reduced aerodynamic efficiency at high speeds

Causes

Open or short circuit in wiring harness
Faulty fuse or relay
Problems with active aerodynamics control module B
Corroded contacts or poor connection

How to Fix

Check fuse and relay associated with the module
Inspect the wiring harness for damage
Check connections and contacts for corrosion
Test active aerodynamics control module B
Replace faulty components

Related codes

B3A2A B3A2C B3A2D