P2BA6
NOx Exceedance - SCR NOx Catalyst Performance
P2BA6 is an OBD-II diagnostic trouble code meaning: NOx Exceedance - SCR NOx Catalyst Performance. Common causes: scr catalyst malfunction, low level or poor quality of adblue reagent. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- Reduced engine power
- Increased fuel consumption
- Unpleasant exhaust smell
- Possible transition to emergency mode
Causes
- SCR catalyst malfunction
- Low level or poor quality of AdBlue reagent
- NOx sensor malfunction
- Problems with the AdBlue pump or nozzle
- Dirty or clogged SCR system
How to Fix
- Check the level and quality of AdBlue reagent
- Diagnose the operation of the AdBlue pump and nozzle
- Check the condition of the SCR catalyst
- Test NOx sensors and their wiring
- If necessary, replace the SCR catalyst or sensors
Related codes
Error P2BA6 by Vehicle Brand
FAQ
What does the P2BA6 code mean?
P2BA6 is an OBD-II diagnostic trouble code that indicates: NOx Exceedance - SCR NOx Catalyst Performance
What causes a P2BA6 error code?
The most common causes of P2BA6 include: SCR catalyst malfunction; Low level or poor quality of AdBlue reagent; NOx sensor malfunction; Problems with the AdBlue pump or nozzle.
How do I fix a P2BA6 diagnostic trouble code?
To fix P2BA6: Check the level and quality of AdBlue reagent. Diagnose the operation of the AdBlue pump and nozzle. Check the condition of the SCR catalyst. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2BA6?
Limited driving only, diagnose soon
How much does it cost to fix P2BA6?
The estimated repair cost for P2BA6 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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