OBD Guide

B3A2E

Active Aerodynamic Feature Control Module C Power Mode Circuit/Open

B3A2E is an OBD-II diagnostic trouble code meaning: Active Aerodynamic Feature Control Module C Power Mode Circuit/Open. Common causes: broken wire in the power circuit, poor contact in connectors. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Disabling active aerodynamics
  • Malfunction indicator light comes on
  • Reduced aerodynamic efficiency

Causes

  • Broken wire in the power circuit
  • Poor contact in connectors
  • Control module malfunction
  • Fuse or relay problems

How to Fix

  1. Check the fuse and power supply relay
  2. Inspect the wiring harness for damage
  3. Check module connectors for oxidation or poor contact
  4. Test the control module
  5. Replace faulty components

Related codes

Error B3A2E by Vehicle Brand

FAQ

What does the B3A2E code mean?

B3A2E is an OBD-II diagnostic trouble code that indicates: Active Aerodynamic Feature Control Module C Power Mode Circuit/Open

What causes a B3A2E error code?

The most common causes of B3A2E include: Broken wire in the power circuit; Poor contact in connectors; Control module malfunction; Fuse or relay problems.

How do I fix a B3A2E diagnostic trouble code?

To fix B3A2E: Check the fuse and power supply relay. Inspect the wiring harness for damage. Check module connectors for oxidation or poor contact. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3A2E?

Limited driving only, diagnose soon

How much does it cost to fix B3A2E?

The estimated repair cost for B3A2E is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat