OBD Guide

B0102

Sensor Cleaning Air Blower Actuator A Control

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

Symptoms

  • Check Engine light comes on
  • Reduced efficiency of the sensor cleaning system
  • There may be problems with the operation of other systems that depend on the cleanliness of the sensors

Causes

  • Open or short circuit in wiring harness
  • Cleaner control relay malfunction
  • Air pump (actuator) failure
  • Problems with the control unit
  • Corrosion of contacts or connectors

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check the operation of the control relay
  3. Test the air pump
  4. Check power and ground in the circuit
  5. If necessary, replace faulty components
  6. Reset the error and check if it returns

Related codes

Error B0102 by Vehicle Brand