B0249

Air Flow Control 3 Circuit Range

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect operation of the ventilation or climate control system
Unstable temperature in the cabin
Check Engine Light Illuminates

Causes

Air flow sensor malfunction
Open or short circuit in control circuit
Problems with the control unit (ECU)
Mechanical faults (clogged air ducts, faulty damper)

How to Fix

Check the integrity of the air flow control circuit 3
Check the air flow sensor for malfunctions
Inspect mechanical components (dampers, ducts)
If necessary, replace faulty components
Reset the error and check if it returns

Related codes

B0248 B0250 P0100