Code result

P243A

Particulate Filter Restriction Ash Accumulation Bank 2

Moderate severity

What it means

The diesel particulate filter on bank 2 reports backpressure attributable to ash (non-combustible residue from oil and fuel additives, not removable by regeneration). The filter has reached the end of its service life and needs cleaning or replacement.

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

  • DPF full of ash

    high

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

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