B3A29

Active Aerodynamic Feature Control Module B Power Mode Circuit Low Voltage

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Inoperative active aerodynamics elements
Warning message on dashboard
Reduced aerodynamic efficiency

Causes

Poor contact in module connectors
Wiring harness damage
Control module malfunction
Fuse or relay problems

How to Fix

Check fuses and relays associated with the module
Inspect the wiring harness for damage
Check module connectors for oxidation or poor contact
Test the control module for faults
Replace module if necessary

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