Code result

P2444

Secondary Air Injection System Pump Stuck Off

Moderate severity

What it means

The secondary-air pump does not run when commanded during cold start. Often a seized pump (after exhaust back-feed corroded the impeller), a blown fuse, or a failed relay.

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

  • Pump seized by corrosion

    high

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

  • Pump relay failed

    medium

    A plausible cause — test and verify before replacing parts.

  • Pump fuse blown

    medium

    A plausible cause — test and verify before replacing parts.

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