Common DPF fault codes

P1471 – Diesel Particulate Filter (Bank 1) Regeneration not completed

P2002 – Diesel Particulate Filter (Bank 1) Efficiency below threshold

P2003 – Diesel Particulate Filter (Bank 1) Particulate mass too high

P242F – Diesel Particulate Filter (Bank 1) Regeneration not active

P244A – Particulate Filter Differential pressure too low

P244B – Particulate Filter Differential pressure too high

P2452 – Particulate Filter Differential pressure sensor malfunction

P2453 – Diesel Particulate Filter Differential pressure sensor malfunction

P2454 – Diesel Particulate Filter Differential pressure sensor voltage too low

P2455 – Diesel Particulate Filter Differential pressure sensor malfunction

P2458 – Particulate Filter regeneration maximum regeneration time exceededP2459 – Particulate Filter regeneration, regeneration frequency implausible