U028F

Lost Communication with Active Aerodynamic Feature Control Module C

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–278 (est.)

Symptoms

Active aerodynamic elements do not work
Check Engine light comes on
Possible reduction in engine power
Error message on the dashboard
Aerodynamic elements are fixed in one position

Causes

Open or short circuit in the module power supply circuit
Damage to the wiring harness to the module
Malfunction of the active aerodynamics module
Connector problems or contact corrosion
Failures in ECU software

How to Fix

Check fuses associated with the system
Inspect the wiring harness and connectors for damage.
Check the power supply and ground of the module
Scan the module for additional errors
If necessary, replace the active aerodynamics module

Related codes

U028E U0290 U0291