OBD Guide

B3A50

Active Aerodynamic Feature C Position Sensor 2 Circuit High Voltage

B3A50 is an OBD-II diagnostic trouble code meaning: Active Aerodynamic Feature C Position Sensor 2 Circuit High Voltage. Common causes: short circuit in the sensor circuit, position sensor malfunction. 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
  • Error message on the dashboard
  • Reduced aerodynamic efficiency at high speeds

Causes

  • Short circuit in the sensor circuit
  • Position sensor malfunction
  • Wiring harness damage
  • Problems with the active aerodynamics control unit

How to Fix

  1. Check the integrity of the wiring harness
  2. Check the voltage in the sensor circuit
  3. Replace position sensor if necessary
  4. Check the control unit for errors

Related codes

Error B3A50 by Vehicle Brand

FAQ

What does the B3A50 code mean?

B3A50 is an OBD-II diagnostic trouble code that indicates: Active Aerodynamic Feature C Position Sensor 2 Circuit High Voltage

What causes a B3A50 error code?

The most common causes of B3A50 include: Short circuit in the sensor circuit; Position sensor malfunction; Wiring harness damage; Problems with the active aerodynamics control unit.

How do I fix a B3A50 diagnostic trouble code?

To fix B3A50: Check the integrity of the wiring harness. Check the voltage in the sensor circuit. Replace position sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B3A50?

Limited driving only, diagnose soon

How much does it cost to fix B3A50?

The estimated repair cost for B3A50 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat