Code result

P24D1

Particulate Matter Sensor Regeneration Incomplete

Moderate severity

What it means

A sensor regeneration cycle (heating to burn off accumulated soot) did not complete - sensor cannot return to measurement mode.

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

  • Regeneration aborted before completion

    high

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

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