The control module detected a fault associated with the NOx Exceedence - Low Reagent Consumption circuit or function; the stored code identifies the affected component rather than a single failure mode.
TuningBot DTC Database · v4.37.15
P2BAA NOx Exceedence - Low Reagent Consumption
Generic (OBD-II) interpretation in the TuningBot DTC database.
What P2BAA means
Related and nearby codes
How to read P2BAA
Powertrain: engine, transmission and driveline systems.
Generic SAE-standard code: same meaning on every make.
Specific fault index within the subsystem.
Frequently asked questions about P2BAA
What does P2BAA mean?
NOx Exceedence - Low Reagent Consumption. The control module detected a fault associated with the NOx Exceedence - Low Reagent Consumption circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P2BAA generic or manufacturer-specific?
P2BAA is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2BAA at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
Other file services
Understand the system behind this code: SCR / AdBlue System
