OBD Guide

B0105

Sensor Cleaning Air Blower Actuator B Control Relay

B0105 is an OBD-II diagnostic trouble code meaning: Sensor Cleaning Air Blower Actuator B Control Relay. Common causes: faulty control relay, open or short circuit in wiring harness. Estimated repair cost: $56–167.

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

Symptoms

  • Check Engine Light Is On
  • Incorrect operation of the sensor cleaning system
  • Possible malfunctions of security systems

Causes

  • Faulty control relay
  • Open or short circuit in wiring harness
  • Damaged cleaning actuator
  • Problems with the control unit

How to Fix

  1. Check the control relay for malfunctions
  2. Inspect the wiring harness for damage
  3. Check the operation of the cleaning actuator
  4. Scan the control unit for errors

Related codes

Error B0105 by Vehicle Brand

FAQ

What does the B0105 code mean?

B0105 is an OBD-II diagnostic trouble code that indicates: Sensor Cleaning Air Blower Actuator B Control Relay

What causes a B0105 error code?

The most common causes of B0105 include: Faulty control relay; Open or short circuit in wiring harness; Damaged cleaning actuator; Problems with the control unit.

How do I fix a B0105 diagnostic trouble code?

To fix B0105: Check the control relay for malfunctions. Inspect the wiring harness for damage. Check the operation of the cleaning actuator. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B0105?

Do not drive — repair immediately

How much does it cost to fix B0105?

The estimated repair cost for B0105 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat