P2BAA
NOx Exceedence - Low Reagent Consumption
P2BAA is an OBD-II diagnostic trouble code meaning: NOx Exceedence - Low Reagent Consumption. Common causes: low level of adblue reagent in the tank, scr pump malfunction. 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
- SCR pump malfunction
- Clogged reagent injection nozzle
- Problems with NOx sensors
- Poor quality or diluted reagent
How to Fix
- Check and, if necessary, add AdBlue reagent
- Diagnose the operation of the SCR system pump
- Clean or replace the reagent injection nozzle
- Check NOx sensors and their wiring
- Reset error and test drive
Related codes
Error P2BAA by Vehicle Brand
FAQ
What does the P2BAA code mean?
P2BAA is an OBD-II diagnostic trouble code that indicates: NOx Exceedence - Low Reagent Consumption
What causes a P2BAA error code?
The most common causes of P2BAA include: Low level of AdBlue reagent in the tank; SCR pump malfunction; Clogged reagent injection nozzle; Problems with NOx sensors.
How do I fix a P2BAA diagnostic trouble code?
To fix P2BAA: Check and, if necessary, add AdBlue reagent. Diagnose the operation of the SCR system pump. Clean or replace the reagent injection nozzle. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2BAA?
Limited driving only, diagnose soon
How much does it cost to fix P2BAA?
The estimated repair cost for P2BAA is $17–89. Actual cost depends on your vehicle, location, and labor rates.
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