These 11 diagnostic trouble codes share one detection mechanism and one repair path, which is why MechanicDB groups them into a single authored fault family rather than repeating the same explanation 11 times.
| Code | Definition | Repair coverage |
|---|---|---|
| P2BA6 | NOx Exceedance - SCR NOx Catalyst Performance | 4 ranked fixes |
| P2BA7 | NOx Exceedence - Empty Reagent Tank | 4 ranked fixes |
| P2BA8 | NOx Exceedence - Interruption of Reagent Dosing Activity | 4 ranked fixes |
| P2BA9 | NOx Exceedence - Insufficient Reagent Quality | 4 ranked fixes |
| P2BAA | NOx Exceedence - Low Reagent Consumption | 4 ranked fixes |
| P2BAB | NOx Exceedence - Incorrect EGR Flow | 4 ranked fixes |
| P2BAC | NOx Exceedence - Deactivation of EGR | 4 ranked fixes |
| P2BAD | NOx Exceedence - Root Cause Unknown | 4 ranked fixes |
| P2BAE | NOx Exceedence - NOx control monitoring system | 4 ranked fixes |
| P2BAF | NOx System Driver Inducement Active | 4 ranked fixes |
| P2C79 | NOx Adsorber - Sulfur Limit Exceeded | 4 ranked fixes |
This page publishes the fault mechanism and the code index. The licensed dataset adds, for every one of the 15,886 codes, the full authored repair set (56,729 procedures in total) with the fields deliberately withheld here:
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