B0104

Sensor Cleaning Air Blower Actuator A Control Relay

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$22–56 (est.)

Symptoms

Incorrect operation of the climate control system
Reduced air purification efficiency
Error on the dashboard

Causes

Faulty control relay
Open or short circuit in wiring harness
Problems with the actuator
Control unit malfunction

How to Fix

Check the control relay for sticking or damage.
Check the wiring harness for breaks and short circuits
Check the actuator for operability
Check the control unit for errors

Related codes

B0101 B0102 B0103