Generic (OBD-II) interpretation in the TuningBot DTC database.
P · PowertrainEmissionsOBD2
What P2572 means
P2572
Direct ozone reduction catalytic converter deterioration sensor
Generic · emissions
Data confidence78%
The control module detected a fault associated with the Direct ozone reduction catalytic converter deterioration sensor circuit or function; the stored code identifies the affected component rather than a single failure mode.
Symptoms
MIL illuminated
Possible smell of unburnt fuel or reduced performance in severe cases
Possible causes
Wiring
Recommended checks
Compare upstream and downstream oxygen sensor signals
Check for exhaust leaks
Check for stored misfire or mixture codes first
Verify catalyst temperature plausibility where available
Powertrain: engine, transmission and driveline systems.
2
Generic SAE-standard code: same meaning on every make.
572
Specific fault index within the subsystem.
Frequently asked questions about P2572
What does P2572 mean?
Direct ozone reduction catalytic converter deterioration sensor. The control module detected a fault associated with the Direct ozone reduction catalytic converter deterioration sensor circuit or function; the stored code identifies the affected component rather than a single failure mode.
Is P2572 generic or manufacturer-specific?
P2572 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.
Can TuningBot remove P2572 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.
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