OBD Guide

B3A5A

Active Aerodynamic Feature D Position Sensor 2 Circuit High Voltage

B3A5A is an OBD-II diagnostic trouble code meaning: Active Aerodynamic Feature D Position Sensor 2 Circuit High Voltage. Common causes: position sensor malfunction, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Incorrect operation of active aerodynamics
  • Check Engine Light Illuminates
  • Reduced management efficiency

Causes

  • Position sensor malfunction
  • Open or short circuit in wiring harness
  • Power or grounding problems
  • Control unit malfunction

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the voltage and resistance of the sensor
  3. Replace sensor if necessary
  4. Check the operation of the control unit

Related codes

Error B3A5A by Vehicle Brand

FAQ

What does the B3A5A code mean?

B3A5A is an OBD-II diagnostic trouble code that indicates: Active Aerodynamic Feature D Position Sensor 2 Circuit High Voltage

What causes a B3A5A error code?

The most common causes of B3A5A include: Position sensor malfunction; Open or short circuit in wiring harness; Power or grounding problems; Control unit malfunction.

How do I fix a B3A5A diagnostic trouble code?

To fix B3A5A: Check the integrity of the wiring harness. Check the voltage and resistance of the sensor. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3A5A?

Limited driving only, diagnose soon

How much does it cost to fix B3A5A?

The estimated repair cost for B3A5A is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat