P243D: Particulate Filter Regeneration Duration Bank 2
Standardized SAE J2012 code · P24xx — Auxiliary emission controls
What does P243D mean?
Regenerations on bank 2 take longer than calibrated to complete - typically a low EGT during the cycle (cold weather, short trips) or a partially aged catalyst before the DPF.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Check engine light or DPF warning light on
- Power loss / limp mode
- Increased fuel consumption
- Failed forced regeneration attempts
Common causes
- High Regeneration too slow
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P243D on the same make and model first.
P243D in the community
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