OBD-II code · Powertrain (generic)
P06EB NOx Sensor Processor Performance Bank 1 Sensor 2
Same as P06EA on sensor 2.
Is it safe to drive with P06EB?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyInternal software anomaly
- Less likelyModule software outdated, reflash may resolve
- Less likelySupply voltage outside specification
Symptoms
- Check engine light or NOx warning on
- AdBlue/DEF level or quality warning
- Possible no-start countdown after ignore period
- Failed emissions inspection (NOx)
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–8 h
- Emissions test
- Likely to fail
- Parts involved
- Ecu Internal Processing, Nox Sensor Post Scr B1
Related codes
- P06EANOx Sensor Processor Performance Bank 1 Sensor 1
- P23ABNOx Sensor Processor Performance Bank 1 Sensor 3
- P06E8Sensor Power Supply C Circuit High
- P06E9Engine Starter Performance
- P06ECFuel Injector Control Module Requested MIL Illumination
- P06EDEngine RPM Output Circuit Low
- P06EEEngine RPM Output Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.