Code result

P0449

Evaporative Emission Control System Vent Valve/Solenoid Circuit Malfunction

Moderate severity

What it means

A general electrical fault was detected in the EVAP vent valve/solenoid control circuit. Without a working vent valve the EVAP leak test cannot complete and the system may remain not-ready.

Is it safe to drive?

Use caution

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.

Most likely causes

  • Vent valve electrically failed

    high

    One of the most commonly reported causes for this code — check this first.

  • Wiring or connector fault

    medium

    A plausible cause — test and verify before replacing parts.

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