P2577
Direct Ozone Reduction Catalyst Efficiency Below Threshold
P2577 is an OBD-II diagnostic trouble code meaning: Direct Ozone Reduction Catalyst Efficiency Below Threshold. Common causes: ozone catalyst wear, mechanical damage to the catalyst. Estimated repair cost: $39–167.
Symptoms
- Check Engine light comes on
- Possible slight smell of ozone from the exhaust system
- Slight increase in fuel consumption
- No noticeable changes in engine performance
Causes
- Ozone catalyst wear
- Mechanical damage to the catalyst
- Catalyst contamination
- Problems with emission control system sensors
- Open or short circuit in the sensor circuit
How to Fix
- Diagnostics of the condition of the ozone catalyst
- Checking exhaust system sensors
- Checking the integrity of wiring harnesses
- Replacing the ozone catalyst if necessary
Related codes
Error P2577 by Vehicle Brand
FAQ
What does the P2577 code mean?
P2577 is an OBD-II diagnostic trouble code that indicates: Direct Ozone Reduction Catalyst Efficiency Below Threshold
What causes a P2577 error code?
The most common causes of P2577 include: Ozone catalyst wear; Mechanical damage to the catalyst; Catalyst contamination; Problems with emission control system sensors.
How do I fix a P2577 diagnostic trouble code?
To fix P2577: Diagnostics of the condition of the ozone catalyst. Checking exhaust system sensors. Checking the integrity of wiring harnesses. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2577?
Yes, but get it checked soon
How much does it cost to fix P2577?
The estimated repair cost for P2577 is $39–167. Actual cost depends on your vehicle, location, and labor rates.
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