P2Bxx trouble codes
- P2BA2 NOx Exceedance: SCR Conversion Efficiency Low at Idle
- P2BA7 Reductant (DEF) Injection Valve Performance Problem
- P2BA9 Reductant (DEF) Pump Control Circuit Open
- P2BAB Reductant (DEF/AdBlue) Level Too Low
- P2BAC NOx Exceedance – Empty Reagent Tank (Diesel SCR)
- P2BAD Reductant (DEF) Quality Performance Fault
- P2BAE Reductant (DEF/AdBlue) Temperature Too Low in SCR System
- P2BAF Reductant (DEF/AdBlue) Tank Heater Control Circuit Open
- P2BB0 Reductant Line Heater Control Circuit Open
- P2BB1 Reductant (DEF) Pressure Too Low
- P2BB2 Reductant (DEF) Delivery Line Performance Problem
- P2BB5 Reductant (DEF/AdBlue) Concentration Out of Range
- P2BB6 Reductant (DEF) Pump A Control Circuit Performance
- P2BB8 SCR (Reductant) System Performance Below Target
- P2BB9 NOx Sensor Heater Control Circuit Open (Bank 1)
- P2BBC DEF Tank Temperature Sensor Signal Implausible
- P2BBD Reductant Pump B Control Circuit Open
- P2BBE Reductant (DEF) Control Module Performance Fault
- P2BC0 Reductant (DEF) Quality Sensor Circuit Performance
- P2BC1 Reductant (DEF) Injector Circuit Open
- P2BC3 Reductant (DEF) Consumption Too Low in SCR System
- P2BC5 Reductant (DEF) Tank Frozen in SCR System
- P2BC7 Downstream NOx Sensor 2 Performance (SCR Efficiency)
- P2BC8 Reductant (DEF) Supply Line Restriction