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Direct Ozone Reduction Catalyst Deterioration Sensor Circuit

The Engine Control Module (ECM) monitors the Direct Ozone Reduction Catalyst Deterioration Sensor signal. The ECM sets the OBDII code when the Direct Ozone Reduction Catalyst Deterioration Sensor signal is out of factory specifications.

Cause:
Faulty Direct Ozone Reduction Catalyst Deterioration Sensor
Direct Ozone Reduction Catalyst Deterioration Sensor harness is open or shorted
Direct Ozone Reduction Catalyst Deterioration Sensor circuit poor electrical connection

Symptoms:
Check engine light