P243B
Particulate Filter Restriction Forced Limited Power Bank 2
Particulate Filter Restriction Forced Limited Power Bank 2: the control module has detected this fault condition.
- 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.
- DPF heavily cloggedCommon
Parts involved
- DPF B2
P243B 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.