B3A43 — Active Aerodynamic Feature B Position Not Plausible

B3A43: Active Aerodynamic Feature B Position Not Plausible — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Active Aerodynamic Feature B Position Not Plausible. Source catalogue definition; confirm applicability using vehicle service information.

Affected system: Body

Also written as: B3A43-00, B3A4300 (some scan tools add the fault-type byte, e.g. -00).