Error code

OBD2 P2577

OBD2P2577
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Direct Ozone Reduction Catalyst Efficiency Below Threshold.

Severity

highDriving with this issue can lead to further damage and increased emissions. It's recommended to address the problem promptly.

Summary

P2577 indicates that the direct ozone reduction catalytic converter's efficiency is below an acceptable threshold, affecting emissions performance.

Common Causes

  • Clogged or damaged catalytic converter
  • Faulty oxygen sensors

Fixes

  • Replace the direct ozone reduction catalytic converter.

FAQ

What does P2577 mean?

P2577 indicates that the efficiency of your car's direct ozone reduction catalytic converter is below an acceptable threshold, which can affect emissions performance.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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