P249F: Excessive Time To Enter Closed Loop Particulate Filter Regeneration Control
Standardized SAE J2012 code · P24xx — Auxiliary emission controls
What does P249F mean?
The DPF regeneration controller cannot transition into its closed-loop temperature control quickly enough - typically because EGT does not rise to setpoint within the calibrated window.
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 EGT rise too slow
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of P249F on the same make and model first.
P249F in the community
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