Powertrain
generic / SAE
P2572
Direct Ozone Reduction Catalyst Deterioration Sensor Circuit
General electrical fault on the DOR catalyst deterioration sensor circuit. This sensor estimates the remaining ozone-conversion capacity of the DOR coating — coating worn off the radiator surface, contaminated by salt or grime, or thermally aged. Without a valid signal the deterioration monitor is disabled.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number5 / 72
Possible causes
- Open or shorted wiring high
Symptoms
- Check engine light on
- Failed emissions inspection
- Possibly slightly increased fuel consumption
- Sulfur (rotten egg) smell from exhaust under load
Inspection / repair
- Difficulty: medium
- DIY: possible
- Estimated cost: 80–400 €
- Estimated time: 0.4–1.5 h
- Component: dor deterioration sensor
- Component: sensor wiring
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012