OBD Guide

B3A23

Active Aerodynamic Feature Control Module D

B3A23 is an OBD-II diagnostic trouble code meaning: Active Aerodynamic Feature Control Module D. Common causes: damage to module wiring harness, solenoid valve or actuator malfunction. Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Active aerodynamic elements do not work
  • Error message on the dashboard
  • Reduced aerodynamic efficiency at high speeds

Causes

  • Damage to module wiring harness
  • Solenoid valve or actuator malfunction
  • Software failure in the control module
  • Mechanical damage to aerodynamic elements

How to Fix

  1. Check wiring harness and module connectors
  2. Scan the module for errors
  3. Check the operation of drives and solenoids
  4. If necessary, replace the control module

Related codes

Error B3A23 by Vehicle Brand

FAQ

What does the B3A23 code mean?

B3A23 is an OBD-II diagnostic trouble code that indicates: Active Aerodynamic Feature Control Module D

What causes a B3A23 error code?

The most common causes of B3A23 include: Damage to module wiring harness; Solenoid valve or actuator malfunction; Software failure in the control module; Mechanical damage to aerodynamic elements.

How do I fix a B3A23 diagnostic trouble code?

To fix B3A23: Check wiring harness and module connectors. Scan the module for errors. Check the operation of drives and solenoids. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3A23?

Limited driving only, diagnose soon

How much does it cost to fix B3A23?

The estimated repair cost for B3A23 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat