P2574

Direct Ozone Reduction Catalyst Deterioration Sensor Circuit Low

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$33–89 (est.)

Symptoms

Check Engine light comes on
Reduced engine power
Increased fuel consumption
Unusual odors from the exhaust system

Causes

Malfunction of the ozone catalyst sensor
Open or short circuit in the sensor circuit
Poor contact in sensor connectors
Mechanical damage to the catalyst
Sensor power problems

How to Fix

Check the integrity of the sensor circuit
Inspect the connectors and contacts of the sensor
Check the functionality of the sensor
If necessary, replace the ozone catalyst sensor
Check the condition of the catalytic converter

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