Code result

P244B

Diesel Particulate Filter Differential Pressure Sensor Offset

Moderate severity

What it means

At engine off, the DPF differential pressure sensor does not return to zero within the allowed offset window. The static offset is too large to be ignored.

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

  • Sensor zero-point drift

    high

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

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