P249D
Closed Loop Reductant Injection Control At Limit - Flow Too Low
P249D is an OBD-II diagnostic trouble code meaning: Closed Loop Reductant Injection Control At Limit - Flow Too Low. Common causes: low level of adblue reagent in the tank, adblue injection nozzle is dirty or clogged. Estimated repair cost: $17–89.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Low AdBlue level message appears
- Unpleasant exhaust smell
Causes
- Low level of AdBlue reagent in the tank
- AdBlue injection nozzle is dirty or clogged
- AdBlue pump malfunction
- Damaged or clogged SCR system piping
- AdBlue level or quality sensor malfunction
How to Fix
- Check and, if necessary, add AdBlue reagent
- Check the condition of the AdBlue injection nozzle for contamination
- Diagnose the operation of the AdBlue supply pump
- Check the integrity and permeability of the SCR system pipelines
- Check the serviceability of the AdBlue level and quality sensors
Related codes
Error P249D by Vehicle Brand
FAQ
What does the P249D code mean?
P249D is an OBD-II diagnostic trouble code that indicates: Closed Loop Reductant Injection Control At Limit - Flow Too Low
What causes a P249D error code?
The most common causes of P249D include: Low level of AdBlue reagent in the tank; AdBlue injection nozzle is dirty or clogged; AdBlue pump malfunction; Damaged or clogged SCR system piping.
How do I fix a P249D diagnostic trouble code?
To fix P249D: Check and, if necessary, add AdBlue reagent. Check the condition of the AdBlue injection nozzle for contamination. Diagnose the operation of the AdBlue supply pump. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P249D?
Yes, but get it checked soon
How much does it cost to fix P249D?
The estimated repair cost for P249D is $17–89. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat