Error code
OBD2 P2574
OBD2P2574
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.
What it means
Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low.
Severity
moderateCan be driven but may cause further damage or emissions issues.
Summary
P2574 indicates that the Direct Ozone Reduction Catalyst Deterioration Sensor circuit has a low voltage reading, typically located near the catalytic converter.
Common Causes
- Wiring short to ground
- Direct ozone reduction catalytic converter deterioration sensor failure
Fixes
- Inspect and repair any wiring shorts to ground near the Direct Ozone Reduction Catalyst Deterioration Sensor.
Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.
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