OBD Guide

B0103

Sensor Cleaning Air Blower Actuator B Control

B0103 is an OBD-II diagnostic trouble code meaning: Sensor Cleaning Air Blower Actuator B Control. Common causes: open or short circuit in wiring harness, sensor cleaning actuator fault b. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$56–167 (est.)

Symptoms

  • Airbag malfunction indicator light is on
  • Reduced efficiency of the security system
  • Errors in other sensor-related systems

Causes

  • Open or short circuit in wiring harness
  • Sensor cleaning actuator fault B
  • Problems with the security control unit
  • Corroded contacts or poor connection

How to Fix

  1. Check wiring harness for damage
  2. Check the resistance and power supply of the actuator
  3. Replace the actuator if necessary
  4. Check connections and contacts
  5. Reset the error and check the system

Related codes

Error B0103 by Vehicle Brand

FAQ

What does the B0103 code mean?

B0103 is an OBD-II diagnostic trouble code that indicates: Sensor Cleaning Air Blower Actuator B Control

What causes a B0103 error code?

The most common causes of B0103 include: Open or short circuit in wiring harness; Sensor cleaning actuator fault B; Problems with the security control unit; Corroded contacts or poor connection.

How do I fix a B0103 diagnostic trouble code?

To fix B0103: Check wiring harness for damage. Check the resistance and power supply of the actuator. Replace the actuator if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0103?

Do not drive — repair immediately

How much does it cost to fix B0103?

The estimated repair cost for B0103 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat