Code result

P0448

Evaporative Emission Control System Vent Control Circuit Shorted

Moderate severity

What it means

EVAP vent valve drive circuit shorted to ground or B+. The vent valve seals the canister during pressure-test diagnostics.

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

  • Short in drive line

    high

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

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