P2576 Possible Causes
- Faulty direct reduction ozone catalyst deterioration sensor
- Direct reduction ozone catalyst deterioration sensor harness open or shorted
- Poor electrical connection in direct reduction ozone catalyst deterioration sensor circuit
How to Fix Code P2576
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
Possible Symptoms
Check engine light illuminated (or service engine soon warning light)
P2576 Meaning
The engine control module (ECM) monitors the signal from the direct reduction ozone catalyst deterioration sensor. The ECM sets the OBDII code when the direct reduction ozone catalyst deterioration sensor signal falls outside factory specifications.