P0447

EVAP System Vent Control Circuit Open

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Check Engine Light Is On
Possible smell of gasoline
Engine performance deterioration
Increased fuel consumption

Causes

Broken or damaged wiring harness
EVAP vent valve malfunction
Problems with the control relay
Contact corrosion
Engine control unit (ECU) malfunction

How to Fix

Check the wiring harness for breaks and damage
Check EVAP vent valve resistance
Check the operation of the control relay
Clean contacts from corrosion
Replace valve or wiring harness if necessary
Reset the error and check the system

Related codes

P0442 P0446 P0455