P2460
DPF Restriction — Forced Limited Power
The DPF restriction has reached a level that forces the ECU to limit engine power. The driver must allow a forced regeneration or have the filter serviced before normal power is restored.
- Check engine light: Yes
- Emissions related: Yes
- Repair difficulty: hard
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Common causes
Ordered by how often each turns out to be the cause.
- Heavy soot load, regenerations skippedCommon
- Ash loaded near service intervalPossible
Parts involved
- Diesel Particulate Filter
- DPF Differential Pressure Sensor
P2460 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.